NEET Biology Cell - The Unit Of Life Question Bank

done Self Evaluation Test - Cell - The Unit of Life Total Questions - 100

• question_answer1)
  Identify the statement that does not hold true for a eukaryotic cell?
  A)
  Presence of 80S type of ribosome in the mitochondria. done clear
  B)
  Presence of 80S type of ribosome in the cytoplasm. done clear
  C)
  Presence of mitochondria containing circular DNA. done clear
  D)
  Presence of membrane bound organelles. done clear
  View Solution play_arrow

• question_answer2)
  Living beings are made up of cells. This statement belongs to:
  A)
  Lamarck done clear
  B)
  Von Helmont done clear
  C)
  Hugo de Vries done clear
  D)
  Schleiden and Schwann done clear
  View Solution play_arrow

• question_answer3)
  Largest unicellular eukaryotic plant is:
  A)
  Egg of Rhinodon done clear
  B)
  Acetabularia done clear
  C)
  Nerve cells of squid done clear
  D)
  RBC of Amphiuma done clear
  View Solution play_arrow

• question_answer4)
  The acidic condition within the lysosome is maintained by:
  A)
  digestive enzymes synthesised on RER. done clear
  B)
  pumping \[C{{l}^{-}}\] ion out of lysosome. done clear
  C)
  pumping protons \[({{H}^{+}})\] into the lysosome. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer5)
  Mitochondria supply most of the necessary biological energy by:
  A)
  Breaking down of sugar done clear
  B)
  Oxidising substrates of TCA cycle done clear
  C)
  Reducing NADP done clear
  D)
  Breaking down of protein done clear
  View Solution play_arrow

• question_answer6)
  The following diagram shows some of the missing structures in a plant cell (1-5). Choose the correct option.
  A)
  1 - Plasmodesmata, 2 - Rough endoplasmic reticulum, 3 - Golgi apparatus, 4 - Mitochondrion, 5 ? Ribosomes done clear
  B)
  1 - Desmosome, 2 - Rough endoplasmic reticulum, 3 - Golgi apparatus, 4 - Mitochondrion, 5 ? Ribosomes done clear
  C)
  1 - Plasmodesmata, 2 - Smooth endoplasmic reticulum, 3 - Golgi apparatus, 4 - Mitochondrion, 5 ? Ribosomes done clear
  D)
  1 - Tight junction, 2 - Rough endoplasmic reticulum, 3 - Golgi apparatus, - Mitochondrion, 5 - Ribosomes done clear
  View Solution play_arrow

• question_answer7)
  Identify the correct statements in comparison to the cell doctrine and choose the option.

  (i) Cells are the basic units of structure in the body of living organisms.

  (ii) The bodies of all living beings are made up of cells and their products.

  (iii) Genetic information is stored and expressed inside the cells.

  (iv) Cells are the basic units of function in living organism that is, the activities of an organism are the sum total of the activities of its cells.

  A)
  (ii) and (iii)       done clear
  B)
         (i) and (ii) done clear
  C)
  Only (i)          done clear
  D)
         All of the above done clear
  View Solution play_arrow

• question_answer8)
  Prokaryotic cell does not have:
  A)
  Nucleolus done clear
  B)
  Membrane bound organelles done clear
  C)
  Centrioles done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer9)
  Which one of the following cell organelles is found only in plants?
  A)
  Golgi complex   done clear
  B)
         Mitochondria done clear
  C)
  Plastids         done clear
  D)
         Ribosomes done clear
  View Solution play_arrow

• question_answer10)
  In which of the following organisms, plastids are not found?
  A)
  Blue green algae done clear
  B)
         Bacteria done clear
  C)
  Fungi                 done clear
  D)
         All of these done clear
  View Solution play_arrow

• question_answer11)
  Function of centriole is:
  A)
  Formation of spindle fibres done clear
  B)
  Formation of nucleolus done clear
  C)
  Initiation of cell division done clear
  D)
  Formation of cell plate done clear
  View Solution play_arrow

• question_answer12)
  Order the following terms in a way that depicts how vesicles are transported to membranes, are likely to move through the cell.

  (i) ER

  (ii) Nuclear envelope

  (iii) Golgi apparatus

  (iv) Vesicle

  (v) Plasma membrane.

  A)
  (i), (ii), (iii), (iv), (v) done clear
  B)
  (i), (iv), (ii), (iv), (iii), (iv), (v) done clear
  C)
  (ii), (iii), (i), (iv), (v) done clear
  D)
  (ii), (i), (iv), (iii), (iv), (v) done clear
  View Solution play_arrow

• question_answer13)
  Sodium and potassium pumps are common in many cells. Which of the following are necessary for the pumps to work?
  A)
  ATP-driven pumping proteins. done clear
  B)
  A signal to activate the pumps. done clear
  C)
  A concentration gradient to work against. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer14)
  Peroxisomes, in plant cells, are involved in:
  A)
  Photooxidation done clear
  B)
  Photorespiration done clear
  C)
  Photophosphorylation done clear
  D)
  Photolysis of water done clear
  View Solution play_arrow

• question_answer15)
  Arrange the following steps in a correct sequence as per Gram's staining technique.

  (i) Treatment with 0.5% iodine solution.

  (ii) Washing with water.

  (iii) Treatment with absolute alcohol/acetone.

  (iv) Staining with weak alkaline solution of crystal violet.

  The correct sequence is:

  A)
  (ii), (i), (iv), (iii)  done clear
  B)
         (iv), (i), (ii), (iii) done clear
  C)
  (iii), (ii), (i), (iv)  done clear
  D)
         (iv), (iii), (ii), (i) done clear
  View Solution play_arrow

• question_answer16)
  Identify the components labelled as 1, 2, 3, 4 and 5 in the diagram given below from the list to (viii).

  (i) Cristae of mitochondria

  (ii) Inner membrane of mitochondria

  (iii) Cytoplasm

  (iv) Smooth endoplasmic reticulum

  (v) Rough endoplasmic reticulum

  (vi) Mitochondrial matrix

  (vii) Ribosome

  (viii) Nucleus

             
  A)
                                              1 - (viii) 2 - (v)    3 - (vii)             4 - (iii)               5 - (iv) done clear
  B)
  1 - (i)    2 - (iv)   3 - (vii)             4 - (vi)               5 - (iii) done clear
  C)
  1 - (vi)   2 - (v)    3 - (iv)              4 - (vii)              5 - (i) done clear
  D)
  1 - (v)  2 - (i)     3 - (iii)              4 - (ii)                5 - (iv) done clear
  View Solution play_arrow

• question_answer17)
  The cells are held together by a Ca-pectate layer called.
  A)
  primary cell wall done clear
  B)
  secondary cell wall done clear
  C)
  middle lamella  done clear
  D)
         tertiary cell wall done clear
  View Solution play_arrow

• question_answer18)
  Cristae are found in:
  A)
  Surface of grana done clear
  B)
  Surface of plasma membrane done clear
  C)
  Wall of mitochondria done clear
  D)
  Nuclear membrane done clear
  View Solution play_arrow

• question_answer19)
  Match column-I (scientists) with column-II (discovery) and select the correct option.

  	Column-I		Column-II
  A.	Leeuwenhoek	I.	First saw and described a living cell.
  B.	Robert Brown	II.	Presence of cell wall is unique to plant cells.
  C.	Schleiden	III.	Discovered the nucleus.
  D.	Schwann	IV.	All plants are composed of different kind of cells.

  A)
  A-I; B-III; C-IV; D-II done clear
  B)
  A-I; B-III; C-II; D-IV done clear
  C)
  A-III; B-I; C-IV; D-II done clear
  D)
  A-I; B-IV; C-II; D-III done clear
  View Solution play_arrow

• question_answer20)
  According to Danielli and Davson, the phospholipid bilayer is covered on either side by:

  (i) Hydrated globular proteins

  (ii) a-globular proteins

  (iii) (3-globular proteins

  (iv) Only spectrin protein with sialic acid

  A)
  (i) and (ii)        done clear
  B)
         (ii) and (iii) done clear
  C)
  (iii) and (iv)        done clear
  D)
  (i) and (iv) done clear
  View Solution play_arrow

• question_answer21)
  Three morphological forms of golgi complex are:
  A)
  Lamellae, tubules and vesicles done clear
  B)
  Cistemae, tubules and vesicles done clear
  C)
  Cistemae, tubules and lamellae done clear
  D)
  Granum, thylakoids and vesicles done clear
  View Solution play_arrow

• question_answer22)
  Channel proteins allow ions that would not normally pass through the cell membrane to go through the channel. What properties of the proteins are responsible for this?
  A)
  The channels are often composed of charged or polar R groups. done clear
  B)
  The channels are often composed of hydrophobic R groups. done clear
  C)
  Both and done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer23)
  Which of the following statement(s) depict the fundamental features of cell theory?

  (i) All cells share similar chemistry and physiology.

  (ii) All living organisms are composed of cells and their products.

  (iii) Each cell is made up of a small mass of protoplasm containing a nucleus inside and a plasma membrane with or without a cell wall outside.

  (iv) Activities of an organism are the sum total of activities and interaction of its constituents cells.

  A)
  (i) Only (i) is correct done clear
  B)
  (ii) and (iii) are correct done clear
  C)
  (ii), (iii) and (iv) are correct done clear
  D)
  (iii) All are correct done clear
  View Solution play_arrow

• question_answer24)
  Which of the following organelles are double membrane-bound?
  A)
  Nucleus done clear
  B)
  Chloroplast done clear
  C)
  Mitochondria done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer25)
  Which of the following substances is most likely to permeate a membrane by diffusing directly through the lipid bilayer?
  A)
  \[{{K}^{+}}\]                          done clear
  B)
         Glucose done clear
  C)
  \[C{{l}^{-}}\]              done clear
  D)
         \[{{O}_{2}}\]  done clear
  View Solution play_arrow

• question_answer26)
  Match column-I with column-II and choose the correct option.

  	Column-I		Column-II
  A.	Tonoplast	I.	Contain digestive enzyme
  B.	Contractile	II.	Store metabolic gases vacuole
  C.	Food vacuole	III.	Excretion
  D.	Air vacuole	IV.	Transport of ions in plants

  A)
  A-IV; B-III; C-I; D-II done clear
  B)
  A-II; B-III; C-IV; D-I done clear
  C)
  A-IV; B-II; C-III; D-I done clear
  D)
  A-I; B-III; C-II; D-IV done clear
  View Solution play_arrow

• question_answer27)
  Match column-I with column-II and select the correct option.  

  	Column-I		Column-II
  A.	Golgi apparatus	I.	Storage
  B.	Mitochondria	II.	Photosynthesis
  C.	Vacuoles	III.	Transport
  D.	Grana	IV.	Secretion
  		V.	Respiration

  A)
  A-IV; B-V; C-I: D-II done clear
  B)
  A-I; B-II; C-IV: D-III done clear
  C)
  A-IV; B-I; C-II: D-III done clear
  D)
  A-I; B-II; C-III: D-IV done clear
  View Solution play_arrow

• question_answer28)
  Match the components 1, 2, 3, 4 and 5 in the diagram (cell membrane) below from the list (i) to (vii).

  (i) Sugar

  (ii) Protein

  (iii) Lipid bilayer

  (iv) Integral protein

  (v) Cytoplasm

  (vi) Cell wall

  (vii) External protein

  A)
  1 - (i), 2 - (ii), 3 - (iii), 4 - (iv), 5 - (v) done clear
  B)
  1 - (ii), 2 - (i), 3 - (iii), 4 - (iv), 5 - (v) done clear
  C)
  1 - (i), 2 - (ii), 3 - (iii), 4 - (iv), 5 - (vi) done clear
  D)
  1 - (i), 2 - (ii), 3 - (iii), 4 - (vii), 5 - (v) done clear
  View Solution play_arrow

• question_answer29)
  Plasmodesmata connections help in:
  A)
  Cytoplasmic streaming. done clear
  B)
  Synchronous mitotic divisions. done clear
  C)
  Locomotion of unicellular organisms. done clear
  D)
  Movement of substances between cells. done clear
  View Solution play_arrow

• question_answer30)
  Correct sequence of layers of bacterial cell envelope is:
  A)
  cell membrane \[\to \] glycocalyx\[\to \] cell wall done clear
  B)
  glycocalyx \[\to \] cell wall \[\to \] cell membrane done clear
  C)
  cell wall \[\to \] glycocalyx \[\to \] cell membrane done clear
  D)
  glycocalyx \[\to \] cell membrane \[\to \] cell wall done clear
  View Solution play_arrow

• question_answer31)
  Both chloroplasts and mitochondria:
  A)
  have multiple membranes. done clear
  B)
  have highly structured innermost membranes. done clear
  C)
  are found only in eukaryotic cells. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer32)
  Which of the face of golgi complex is associated with ER?
  A)
  Forming face i.e., Trans-face done clear
  B)
  Maturing face i.e., Trans-face done clear
  C)
  Both forming and maturing face done clear
  D)
  Forming face or Cis-face done clear
  View Solution play_arrow

• question_answer33)
  Schleiden and Schwann proposed:
  A)
  phenomenon of Brownian movement done clear
  B)
  cell theory or cell doctrine done clear
  C)
  protoplasm as a physical basis of life done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer34)
  Centrioles and centrosomes are present in cells of:
  A)
  Bacteria         done clear
  B)
         Cyanobacteria done clear
  C)
  Green plants      done clear
  D)
         Animals done clear
  View Solution play_arrow

• question_answer35)
  The ribosomes are made up of:
  A)
  DNA + Protein   done clear
  B)
         RNA+Protein done clear
  C)
  DNA+RNA    done clear
  D)
         None of these done clear
  View Solution play_arrow

• question_answer36)
  Which of the following option correctly match 1, 2, 3, and 4 indicated in the diagram?
  A)
  l-Thylakoid, 2-Stromallamella, 3-Stroma, 4 ? Granum done clear
  B)
  1 - Granum, 2 - Thylakoid, 3 ? Stromal lamella, 4 ? Stroma done clear
  C)
  1 - Thylakoid, 2 - Granum, 3 ? Stromal lamella, 4 ? Stroma done clear
  D)
  1 - Granum, 2 ? Thylakoid, 3 ? Stroma 4 - Stromal lamella done clear
  View Solution play_arrow

• question_answer37)
  VI. In which of the following' cell types would you see more cellular detail using an electron microscope as compared to a light microscope?
  A)
  Animal              done clear
  B)
         Plant done clear
  C)
  Bacteria          done clear
  D)
         All of the above done clear
  View Solution play_arrow

• question_answer38)
  The principal protein of cilia and flagella is:
  A)
  Tubulin       done clear
  B)
         Nexin done clear
  C)
  Myosin              done clear
  D)
         Albumin            done clear
  View Solution play_arrow

• question_answer39)
  Ion carriers are located in:
  A)
  Nucleus         done clear
  B)
         Cell wall done clear
  C)
  Cellular space    done clear
  D)
         Plasma membrane done clear
  View Solution play_arrow

• question_answer40)
  The four basic shapes of bacteria are:
  A)
  amoeboid, elongated, biconcave and coccus. done clear
  B)
  elongated, bacillus, coccus and amoeboid. done clear
  C)
  bacillus, coccus, vibrio and spirillum. done clear
  D)
  bacillus, amoeboid, elongated and coccus. done clear
  View Solution play_arrow

• question_answer41)
  Which of the following organelles is directly connected to the outer membrane of the nucleus in a eukaryotic cell?
  A)
  Mitochondrion done clear
  B)
  Lysosome done clear
  C)
  Golgi apparatus done clear
  D)
  Endoplasmic reticulum done clear
  View Solution play_arrow

• question_answer42)
  Match column-I and column-II and select the correct option.

  	Column-I		Column-II
  A.	Bacteria without walls	(i)	Lysosome
  B.	Small circular DNA	(ii)	Mycoplasma cells
  C.	Flattened sacs in a chloroplast	(iii)	Thylakoid
  D.	A vesicle in which hydrolytic enzymes are stored	(iv)	Plasmid

  A)
  A-III; B-IV; C-II; D-I done clear
  B)
  A-II; B-IV; C-III; D-I done clear
  C)
  A-I; B-II; C-III; D-IV done clear
  D)
  A-IV; B-III; C-I; D-II done clear
  View Solution play_arrow

• question_answer43)
  Which one of the following pairs is not incorrectly matched?
  A)
  Cristae - The tubular structure formed by the folding of the inner membrane of the mitochondrion. done clear
  B)
  Plasmodesmata - The membrane surrounding the vacuole in plants. done clear
  C)
  Grana - Membrane bound discs in chloroplasts that contain chlorophylls and carotenoids. done clear
  D)
  Middle lamella - Layer between adjacent cells walls in plants derived from cell plate. done clear
  View Solution play_arrow

• question_answer44)
  Which of the following statements are correct?
  A)
  \[N{{a}^{+}}/{{K}^{+}}\] pump is an example of active transport. done clear
  B)
  In plant cells, lipid like steroidal hormones are synthesised in SER. done clear
  C)
  In plant cells, the vacuoles can occupy up to 10% of the volume of the cell. done clear
  D)
  Chlorophyll and leucoplast are responsible for trapping light energy essential for photosynthesis. done clear
  View Solution play_arrow

• question_answer45)
  The simplest way to distinguish a prokaryotic from a eukaryotic cell, is to check for:
  A)
  Plasma membrane          done clear
  B)
  Nucleus done clear
  C)
  DNA                 done clear
  D)
         Proteins done clear
  View Solution play_arrow

• question_answer46)
  The polynucleated condition appeared by free nuclear division without cytokinesis is:
  A)
  Syncytium done clear
  B)
  Coenocytic done clear
  C)
  Found in amphibian oocyte done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer47)
  Which of the following limits the movement of molecules when carrier-mediated facilitated diffusion is involved?
  A)
  Concentration gradient done clear
  B)
  Availability of carrier molecules done clear
  C)
  Temperature done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer48)
  Grana and stroma lamellae are the parts of:
  A)
  Mitochondria done clear
  B)
  Chloroplast done clear
  C)
  Endoplasmic reticulum done clear
  D)
  Vacuoles done clear
  View Solution play_arrow

• question_answer49)
  Cell wall in higher plants is made up of:
  A)
  Cellulose + lignin done clear
  B)
  Cellulose + pectin done clear
  C)
  Cellulose + suberin done clear
  D)
  Cellulose + lipid done clear
  View Solution play_arrow

• question_answer50)
  Identify the correct statements and choose the option.

  (i) The smallest of all cells are nerve cells.

  (ii) Bacteria are 3-5\[\mu m\] in length.

  (iii) The Ostrich egg is the largest cell.

  (iv) Mycoplasma is the smallest cell (0.3 p-m in length).

  A)
  (i), (ii), (iii) and (iv) done clear
  B)
  Only (ii) done clear
  C)
  Only (i) done clear
  D)
  (ii), (iii) and (iv) done clear
  View Solution play_arrow

• question_answer51)
  The following diagram represents a structure of chromosome. Identify the structures of marked as 1, 2 and 3.
  A)
  1 ? Satellite, 2 - Primary constriction, 3 ? Acrocentric done clear
  B)
  1 - Satellite, 2 - Secondary constriction, 3 ? Metacentric done clear
  C)
  1 - Satellite, 2 - Centromere, 3 ? Telocentric done clear
  D)
  1 -Satellite, 2-Centromere, 3-Submetacentric done clear
  View Solution play_arrow

• question_answer52)
  Which one of the following combination is mismatched?
  A)
  Glycocalyx - May be capsule or slime layer done clear
  B)
  Pili ? Reproduction done clear
  C)
  Cell wall - Protective, determines shape, prevents from bursting done clear
  D)
  Flagella, pili and fimbriae ? Surface structures of bacterial cell done clear
  View Solution play_arrow

• question_answer53)
  Match column-I (cell organelle) with column-II (membrane) and select the correct option from the codes given below.

  	Column-I		Column-II
  A.	Mitochondria	I.	Without membrane
  B.	Lysosomes	II.	Single membrane
  C.	Ribosomes	III.	Double membrane

  A)
  A-I; B-II; C-III done clear
  B)
  A-III; B-I; C-II done clear
  C)
  A-III; B-II; C-I done clear
  D)
  A-II; B-III; C-I done clear
  View Solution play_arrow

• question_answer54)
  In prokaryotes, chromatophores are:
  A)
  specialised granules  responsible  for colouration of cells. done clear
  B)
  structures responsible for organising the shape of the organism. done clear
  C)
  inclusion bodies lying free inside the cells for carrying out various metabolic activities. done clear
  D)
                                                     internal membrane system which becomes extensive and complex in photosynthetic bacteria. done clear
  View Solution play_arrow

• question_answer55)
  An animal cell is put into a bathing solution and it gains additional water. Choose the correct statements.
  A)
  The cell was isoosmotic to the bathing solution. done clear
  B)
  The cell was hypoosmotic to the bathing solution. done clear
  C)
  The cell was hyperosmotic to the bathing solution. done clear
  D)
  The bathing solution was hyperosmotic to the cell. done clear
  View Solution play_arrow

• question_answer56)
  Select the statements which are related to Schwann.

  (i) He reported that cells have a thin outer layer which is today known as plasma membrane.

  (ii) Cell wall is a unique character of the plant cell.

  (iii) Body of plants and animals are composed of cells and products of cells.

  A)
  Only (i)              done clear
  B)
         Only (iii) done clear
  C)
  (i) and (iii)       done clear
  D)
         All of the above done clear
  View Solution play_arrow

• question_answer57)
  Which of the following is related to glycosylation of protein?
  A)
  Endoplasmic reticulum done clear
  B)
  Peroxisome done clear
  C)
  Lysosome done clear
  D)
  Mitochondria done clear
  View Solution play_arrow

• question_answer58)
  Which of the following statements is/are correct?

  (i) The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles.

  (ii) ER helps in the transport of substances, synthesis of proteins, lipoproteins and glycogen.

  (iii) Ribosomes are involved in protein synthesis.

  (iv) Mitochondria    help    in    oxidative phosphorylation and generation of ATR

  A)
  (ii), (iii) and (iv) done clear
  B)
         (i) only done clear
  C)
  (ii) only              done clear
  D)
         (iii) only done clear
  View Solution play_arrow

• question_answer59)
  Choose the correct statement from the options given below.

  (i) Separation from extracellular medium allows the cells to maintain its chemical pool, orderliness of structure and reactions in contrast to disorderly distribution and randomly interacting molecules in the extra- cellular medium.

  (ii) Cells are unable to recognise one another due to the presence of specific chemicals on their surface.

  (iii) Cells of plant tissue are often connected with one another through cytoplasmic bridges called Plasmodesmata.

  (iv) Different cells of an organism communicate as well as exchange materials with one another.

  A)
  (ii) and (iii) done clear
  B)
  (iii) and (iv) done clear
  C)
  (i),(iii) and (iv) done clear
  D)
  (i), (ii), (iii) and (iv) done clear
  View Solution play_arrow

• question_answer60)
  Which of the following enzymes are found in matrix of peroxisomes?
  A)
  NADH cytochrome reeducates done clear
  B)
  Glyoxidases and malate dehydrogenase done clear
  C)
  Acid phosphatases and isocitric lysase done clear
  D)
  Catalases and oxidases done clear
  View Solution play_arrow

• question_answer61)
  Which of the following layer is present nearest plasma membrane in plant cell?
  A)
  Secondary wall   done clear
  B)
         Middle lamella done clear
  C)
  Primary wall     done clear
  D)
         Tonoplast done clear
  View Solution play_arrow

• question_answer62)
  Which of the following is present in both prokaryotes and eukaryotes?
  A)
  Lysosome          done clear
  B)
         Vesicles done clear
  C)
  Chloroplast      done clear
  D)
         Plasma membrane done clear
  View Solution play_arrow

• question_answer63)
  Which structure is present in chromosomes?
  A)
  Nucleus         done clear
  B)
         Centromere done clear
  C)
  Centrosome      done clear
  D)
         Golgi body done clear
  View Solution play_arrow

• question_answer64)
  Select the incorrect statement about prokaryotic ribosomes.
  A)
  50S and 30S subunits unite to form 70S ribosomes. done clear
  B)
  Polysome/polyribosome consists of many ribosomes only. done clear
  C)
  Ribosome is the site of protein synthesis. done clear
  D)
  Poly some indicate the synthesis of identical polypeptide in multiple copies. done clear
  View Solution play_arrow

• question_answer65)
  Consider the following statements and choose the correct statement.

  (i) The endomembrane system includes mitochondria,     chloroplast     and peroxisomes.

  (ii) Smooth endoplasmic reticulum is the major site for synthesis of lipid.

  (iii) Rough endoplasmic reticulum is actively involved in protein synthesis.

  (iv) Mitochondrial matrix possesses single circular DNA, a few RNA and 80S ribosomes.

  A)
  (i) and (iii)     done clear
  B)
         (ii) and (iv) done clear
  C)
  (iii) and (iv)      done clear
  D)
         (ii) and (iii) done clear
  View Solution play_arrow

• question_answer66)
  Which of the following pair are correctly matched?

  (i) Amyloplasts       -  Store proteins

  (ii) Mitochondrion  -  Tower house' of the cell

  (iii) Stroma             -  Chlorophyll pigment

  (iv) Axoneme   -   9+2 array

  A)
  (i) and (iii) only done clear
  B)
  (ii), (iii) and (iv) only done clear
  C)
  (iii) and (iv) only done clear
  D)
  (ii) and (iv) only done clear
  View Solution play_arrow

• question_answer67)
  In a prokaryotic cell, the correct option is:

  (i) enveloped genetic material is present

  (ii) ribosomes are absent

  (iii) an organised nucleus is absent.

  A)
  Only (i)          done clear
  B)
         Only (ii) done clear
  C)
  Only (iii)            done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer68)
  Which of the substance is a complicated mixture of glycerol + phellonic acids deposited on cork cells to make it impermeable to water?
  A)
  Silica             done clear
  B)
         Cutin done clear
  C)
  Lignin                done clear
  D)
         Suberin done clear
  View Solution play_arrow

• question_answer69)
  In nucleoplasm, a conspicuous body of spherical shape attached to a particular chromosome on a definite position is called.
  A)
  plasmid         done clear
  B)
         karyolymph done clear
  C)
  nucleolus       done clear
  D)
         nuclear reticulum done clear
  View Solution play_arrow

• question_answer70)
  \[{{F}_{1}}\] particles / oxysome/ elementary particles are present in:
  A)
  Endoplasmic reticulum done clear
  B)
  Chloroplast done clear
  C)
  Mitochondria done clear
  D)
  Golgi complex done clear
  View Solution play_arrow

• question_answer71)
  Which one is the correct option for the labelled diagrams l, 2, 3 and 4?
  A)
  I - Telocentric chromosome, 2 -Acrocentric chromosome, 3 - Submetacentric chromosome, 4 - Metacentric chromosome done clear
  B)
  1 -Acrocentric chromosome, 2 - Telocentric chromosome, 3 - Metacentric chromosome, 4 - Submetacentric chromosome done clear
  C)
  1 - Submetacentric chromosome, 2 - Metacentric chromosome, 3 - Telocentric chromosome, 4 - Acrocentric chromosome done clear
  D)
  1 - Metacentric chromosome, 2 - Submetacentric chromosome,  3- Acrocentric chromosome, 4 - Telocentric chromosome. done clear
  View Solution play_arrow

• question_answer72)
  Choose the incorrect match.
  A)
  Nucleus                 ?     RNA done clear
  B)
  Lysosome              ?     Protein synthesis done clear
  C)
  Mitochondria     ?          Respiration done clear
  D)
  Cytoskeleton     ?          Microtubules done clear
  View Solution play_arrow

• question_answer73)
  Which one of the following cellular parts is correctly matched with their characters?
  A)
  Centrioles - Sites for active RNA synthesis. done clear
  B)
  Lysosomes - Optimally active at a pH of about 8.5 done clear
  C)
  Thylakoids - Flattened membranous sacs forming the grana of chloroplasts. done clear
  D)
  Ribosomes - Those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S). done clear
  View Solution play_arrow

• question_answer74)
  Which of the following lacks cell wall?
  A)
  Gametes        done clear
  B)
         Amoeba done clear
  C)
  Mycoplasma     done clear
  D)
         All of these done clear
  View Solution play_arrow

• question_answer75)
  Which of the following types of junctions are responsible for communication between cells?
  A)
  Tight junctions done clear
  B)
         Desmosomes done clear
  C)
  Gap junctions    done clear
  D)
         None of the above done clear
  View Solution play_arrow

• question_answer76)
  Protein synthesis in an animal cell occurs:
  A)
  on ribosomes present in cytoplasm as well as in mitochondria. done clear
  B)
  on ribosomes present in the nucleolus as well as in cytoplasm. done clear
  C)
  only on ribosomes attached to the nuclear envelope and endoplasmic reticulum. done clear
  D)
  only on the ribosomes present in cytosol. done clear
  View Solution play_arrow

• question_answer77)
  When mitochondria are actively engaged in phosphorylation and electron transport, it is:
  A)
  in active state done clear
  B)
  in condensed state done clear
  C)
  having enlarged intermembrane space done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer78)
  Gas vacuoles are not reported in:
  A)
  Cyanobacteria done clear
  B)
  Purple/green photosynthetic bacteria done clear
  C)
  Amoeba done clear
  D)
  Prokaryotes done clear
  View Solution play_arrow

• question_answer79)
  Which organelle is surrounded by a double phospholipid bilayer with many large pores?
  A)
  Nuclear envelope done clear
  B)
  Plasma membrane done clear
  C)
  Golgi apparatus done clear
  D)
  Mitochondrion done clear
  View Solution play_arrow

• question_answer80)
  Similarity between plant and animal flagella microtubules is:
  A)
  9+3                  done clear
  B)
         9+2 done clear
  C)
  9+6                  done clear
  D)
         9+1 done clear
  View Solution play_arrow

• question_answer81)
  Which of the following is not the function of cell wall?

  (i) Provides shape to the cell.

  (ii) Protects the cell from mechanical damage and infection.

  (iii) Helps in cell to cell interaction,

  (iv)Provides barrier to undesirable macromolecules.

  A)
  Only (i) done clear
  B)
  Only (iv) done clear
  C)
  Only (ii), (iii) and (iv) done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer82)
  Match column-I with column-II and select the correct option.

  	Column-I		Column-II
  	RER	(i)	Intracellular and extracellular digestion
  	Cell wall	(ii)	Provide structural support to the cell
  	Flagella	(iii)	Protein synthesis and secretion
  	Lysosomes	(iv)	Responsible for cell movement

  A)
  A-III; B-II; C-IV; D-I done clear
  B)
  A-II; B-III; C-IV; D-I done clear
  C)
  A- I; B - III; C - II; D ? IV done clear
  D)
  A - IV; B - II; C - III; D ? I done clear
  View Solution play_arrow

• question_answer83)
  Which of the following contributes to differences in the two sides of the cell membrane?
  A)
  Differences in peripheral proteins. done clear
  B)
  Different domains expressed on the ends of integral proteins. done clear
  C)
  Differences in phospholipid types. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer84)
  The function of centrosome is:
  A)
  Inhibition of cell division done clear
  B)
  Initiates cell division done clear
  C)
  To increase protein synthesis done clear
  D)
  Initiate cytokinesis done clear
  View Solution play_arrow

• question_answer85)
  Cell wall of bacteria is made up of:
  A)
  Murein      done clear
  B)
         Protein done clear
  C)
  Polysaccharide   done clear
  D)
  Lipid done clear
  View Solution play_arrow

• question_answer86)
  You have found a mass of cells in the sediment surrounding a thermal vent in the ocean floor. The salinity in the area is quite high. Upon microscopic examination of the cells you find no evidence of membrane-bound organelles. How would you classify this cell?
  A)
  As a eukaryotic cell done clear
  B)
  As a prokaryotic cell done clear
  C)
  As a member of domain Archaebacteria done clear
  D)
  Both and done clear
  View Solution play_arrow

• question_answer87)
  Match column-I with column-II and select the correct answer using the codes given below.

  	Column-I (Chromosome)		Column-II (Position of centromere)
  	Metacentric	(i)	At the tip
  	Submetacentric	(ii)	Almost near the tip
  	Acrocentric	(iii)	At the middle
  	Telocentric	(iv)	Slightly away from the middle

  A)
  A-III; B-IV; C-II; D-I done clear
  B)
  A-IV; B-III; C-II; D-I done clear
  C)
  A-I; B-II; C-III; D-IV done clear
  D)
  A-IV; B-III; C-I; D-II done clear
  View Solution play_arrow

• question_answer88)
  Read the following statements and identify the correct options given.

  (i) Sap vacuoles - contain digestive enzymes with the help of which nutrients are digested.

  (ii) Contractile vacuoles - take part in osmoregulation and excretion

  (iii) Food vacuoles - store and concentrate mineral salts as well as nutrients

  (iv) Air vacuoles - store metabolic gases and help in buoyancy of cells.

  A)
  (i) and (ii)           done clear
  B)
         (i) and (iii) done clear
  C)
  (ii) and (iv)     done clear
  D)
  (i) and (iv) done clear
  View Solution play_arrow

• question_answer89)
  Which of the following statements regarding cilia is incorrect?
  A)
  Cilia contain an outer of nine doublet microtubules surrounding two single microtubules. done clear
  B)
  The organised beating of cilia is controlled by fluxes \[C{{a}^{2+}}\] across the membrane. done clear
  C)
  Cilia are hair-like cellular appendages. done clear
  D)
  Microtubules of cilia are composed of tubulin. done clear
  View Solution play_arrow

• question_answer90)
  A single unit membrane organelle is:
  A)
  Ribosomes       done clear
  B)
         Mitochondria done clear
  C)
  Chloroplast      done clear
  D)
         Lysosomes done clear
  View Solution play_arrow

• question_answer91)
  In which of the following cell organelles would you expect to find the biochemical reactions that harness energy from the breakdown of sugar molecules to synthesise large amounts of ATP?
  A)
  Lysosome done clear
  B)
  Vesicles done clear
  C)
  Chloroplast done clear
  D)
  Mitochondrion done clear
  View Solution play_arrow

• question_answer92)
  Folding of inner membrane of mitochondria are called.
  A)
  cristae done clear
  B)
  grana done clear
  C)
  calcium oxalate crystals done clear
  D)
  sacs done clear
  View Solution play_arrow

• question_answer93)
  Which type of set of chromosomes has one genome?
  A)
  Haploid     done clear
  B)
         Diploid done clear
  C)
  Triploid              done clear
  D)
         Polyploid done clear
  View Solution play_arrow

• question_answer94)
  Study the following statements on cilium or flagellum and choose the correct option.

  (i) Cilium / flagellum contains an outer ring of nine doublet microtubules surrounding two singlet microtubules.

  (ii) Cilia are smaller which work like oars, causing the movement of either the cells or surrounding fluid.

  (iii) Flagella are comparatively longer and responsible for cell movement.

  (iv) Cilium and flagellum are covered with plasma membrane.

  A)
  (i) and (ii)         done clear
  B)
         (i), (ii), (iii) and (iv) done clear
  C)
  (i) and (iv)          done clear
  D)
  (ii) and (iii) done clear
  View Solution play_arrow

• question_answer95)
  Given below are some characters of a cell organelle. Identify the correct organelle which shows all the characters described above.

  (i) It is a membrane bound space found in the cytoplasm.

  (ii) It is bound by a single membrane called tonoplast.

  (iii) It contains water, sap, excretory products and other materials, not useful to the cell.

  (iv) It has higher concentration of sap than the cytoplasm.

  A)
  Golgi apparatus done clear
  B)
  Lysosomes done clear
  C)
  Endoplasmic reticulum done clear
  D)
  Vacuoles done clear
  View Solution play_arrow

• question_answer96)
  Which of the following terms is incorrectly matched with its feature?
  A)
  Osmosis     - Movement of water by diffusion. done clear
  B)
  Nucleoplasm - Site of active synthesis of ribosomal RNA. done clear
  C)
  Mesosome   - Infolding of cell membrane and characteristics of eukaryotes. done clear
  D)
  Pili          - Elongated tubular surface structures (made of special protein) of bacteria. done clear
  View Solution play_arrow

• question_answer97)
  The strength and rigidity of a cell wall is due to the substance known as.
  A)
  suberin              done clear
  B)
         cellulose done clear
  C)
  lignin                 done clear
  D)
         pectin done clear
  View Solution play_arrow

• question_answer98)
  Semi autonomous cell organelles of cell are:
  A)
  Nucleus and chloroplast done clear
  B)
  Chloroplast and mitochondria done clear
  C)
  Vacuoles and golgi complex done clear
  D)
  Ribosome and lysosome done clear
  View Solution play_arrow

• question_answer99)
  Part of chromosome which joins with spindle fibres is:
  A)
  Chromatid       done clear
  B)
         Chromonema done clear
  C)
  Chromomere     done clear
  D)
         Centromere   done clear
  View Solution play_arrow

• question_answer100)
  What would happen if lysosomes get ruptured inside the cells in which they are present?
  A)
  Cells will swell done clear
  B)
  Cells will shrink done clear
  C)
  Cells will die done clear
  D)
  Nothing would happen done clear
  View Solution play_arrow