Solved papers for NEET Biology NEET PYQ-Cell The Unit Of Life

done NEET PYQ-Cell The Unit Of Life Total Questions - 79

• question_answer1) The proteins are synthesized at: [AIPMT 1999]
  A)
  ribosomes
  done clear
  B)
  mitochondria
  done clear
  C)
  centrosomes
  done clear
  D)
  Golgi bodies
  done clear
  View Answer play_arrow

• question_answer2) Which of the following has single membrane? [AIPMT 1999]
  A)
  Mitochondria
  done clear
  B)
  Nucleus
  done clear
  C)
  Cell wall
  done clear
  D)
  Spherosomes
  done clear
  View Answer play_arrow

• question_answer3) DNA is mainly found in: [AIPMT 1999]
  A)
  nucleus only
  done clear
  B)
  cytoplasm only
  done clear
  C)
  nucleus and cytoplasm
  done clear
  D)
  nucleolus
  done clear
  View Answer play_arrow

• question_answer4) The eukaryotic genome differs from the prokaryotic genome because: [AIPMT 1999]
  A)
  DNA is complexed with histones in prokaryotes
  done clear
  B)
  repetitive sequences are present in eukaryotes
  done clear
  C)
  genes in the former cases are organised into operons
  done clear
  D)
  DNA is circular and single stranded in prokaryotes
  done clear
  View Answer play_arrow

• question_answer5) Lysosomes are the reservoirs (store houses) of: [AIPMT 2000]
  A)
  hydrolytic enzymes
  done clear
  B)
  secretory glycoproteins
  done clear
  C)
  RNA and protein
  done clear
  D)
  fats (or sugars or ATP)
  done clear
  View Answer play_arrow

• question_answer6) The cell organelle involved in the glycosylation of proteins is: [AIPMT 2000]
  A)
  ribosome
  done clear
  B)
  peroxisome
  done clear
  C)
  mitochondria     
  done clear
  D)
  endoplasmic reticulum
  done clear
  View Answer play_arrow

• question_answer7) In an animal cell, protein synthesis takes place: [AIPMT 2000]
  A)
  only on the ribosomes present in the cytosol
  done clear
  B)
  only on the ribosomes attached to nucelar envelope and endoplasmic reticulum
  done clear
  C)
  on ribosomes present in the nucleolus as well as in cytoplasm
  done clear
  D)
  on ribosomes present in the cytosol as well  as in the mitochondria
  done clear
  View Answer play_arrow

• question_answer8) 'Signal hypothesis' for the biosynthesis of secretory type of proteins was proposed by: [AIPMT 2000]
  A)
  Camillo Golgi
  done clear
  B)
  Blobel and Sabatini
  done clear
  C)
  Baltimore
  done clear
  D)
  Sheeler and Bianchi
  done clear
  View Answer play_arrow

• question_answer9) Element necessary for the middle lamella [AIPMT 2001]
  A)
  Ca
  done clear
  B)
  Zn
  done clear
  C)
  K
  done clear
  D)
  Cu
  done clear
  View Answer play_arrow

• question_answer10) Microtubules are absent in: [AIPMT 2001]
  A)
  mitochondria
  done clear
  B)
  flagella
  done clear
  C)
  spindle fibres
  done clear
  D)
  centriole
  done clear
  View Answer play_arrow

• question_answer11) In fluid mosaic model of plasma membrane: [AIPMT 2002]
  A)
  upper layer is non-polar and hydrophihc
  done clear
  B)
  polar layer is hydrophobic
  done clear
  C)
  phospholipids form- a bimolecular layer middle part
  done clear
  D)
  proteins form a middle layer
  done clear
  View Answer play_arrow

• question_answer12) Ribosomes are produced in: [AIPMT 2002]
  A)
  nucleolus
  done clear
  B)
  cytoplasm
  done clear
  C)
  mitochondria
  done clear
  D)
  Golgi body
  done clear
  View Answer play_arrow

• question_answer13) One of the parents of a cross has mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of \[{{F}_{2}}\] progenies that mutation is found in: [AIPMT (S) 2004]
  A)
  one-third of the progenies
  done clear
  B)
  none of the progenies
  done clear
  C)
  all of the progenies
  done clear
  D)
  fifty per-cent of die progenies
  done clear
  View Answer play_arrow

• question_answer14) A free living nitrogen-fixing cyan bacterium which can also form symbiotic association with the water fern Azolla is: [AIPMT (S) 2004]
  A)
  Tolypothrix
  done clear
  B)
  Chlorella
  done clear
  C)
  Nostoc
  done clear
  D)
  Anabaena
  done clear
  View Answer play_arrow

• question_answer15) Flagella of prokaryotic and eukaryotic cells differ in:
  A)
  type of movement and placement in cell
  done clear
  B)
  location in cell and mode of functioning
  done clear
  C)
  micro-tubular organisation and type of movement
  done clear
  D)
  micro-tubular organisation and function
  done clear
  View Answer play_arrow

• question_answer16) In chloroplasts, chlorophyll is present in the: [AIPMT (S) 2004]
  A)
  outer membrane
  done clear
  B)
  inner membrane
  done clear
  C)
  thylakoids
  done clear
  D)
  stroma
  done clear
  View Answer play_arrow

• question_answer17) Which one of the following precedesre-formation of the nuclear envelope during M phase of the cell cycle? [AIPMT (S) 2004]
  A)
  Decondensation from chromosomes and reassembly of the nuclear lamina
  done clear
  B)
  Transcription from chromosomes and reassembly of the nuclear lamina
  done clear
  C)
  Formation of the contractile ring and formation of the phragmoplast
  done clear
  D)
  Formation of the contractile ring and transcription from chromosomes
  done clear
  View Answer play_arrow

• question_answer18) Centromere is required for:  [AIPMT (S) 2005]
  A)
  transcription
  done clear
  B)
  crossing over
  done clear
  C)
  cytoplasmic cleavage
  done clear
  D)
  movement of chromosomes towards poles
  done clear
  View Answer play_arrow

• question_answer19) According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect? [AIPMT (S) 2005]
  A)
  Proteins in cell membranes can travel within the lipid bilayer
  done clear
  B)
  Proteins can remain confined within certain domains of the membrane
  done clear
  C)
  Proteins can also undergo flip-flop movements in the lipid bilayer
  done clear
  D)
  Many proteins remain completely embedded within the lipid bilayer
  done clear
  View Answer play_arrow

• question_answer20) Which of the following statements regarding mitochondrial membrane is not correct?    [AIPMT (S) 2006]
  A)
  The outer membrane is permeable to all kinds of molecules
  done clear
  B)
  The enzymes of the electron transfer chain are embedded in the outer membrane
  done clear
  C)
  The inner membrane is highly convoluted forming a series of infoldings
  done clear
  D)
  The outer membrane resembles a sieve
  done clear
  View Answer play_arrow

• question_answer21) Which one of the following is not a constituent of cell membrane? [AIPMT (S) 2007]
  A)
  Cholesterol
  done clear
  B)
  Glycolipids
  done clear
  C)
  Proline
  done clear
  D)
  Phospholipids
  done clear
  View Answer play_arrow

• question_answer22) In which one of the following preparations are you likely to come across cell junctions most frequently? [AIPMT (S) 2007]
  A)
  Ciliated epithelium
  done clear
  B)
  Thrombocytes
  done clear
  C)
  Tendon
  done clear
  D)
  Hyaline cartilage
  done clear
  View Answer play_arrow

• question_answer23) Select the wrong statement from the following: [AIPMT (S) 2007]
  A)
  both chloroplasts and mitochondria contain an inner and an outer membrane
  done clear
  B)
  both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane
  done clear
  C)
   both chloroplasts and mitochondria contain DNA
  done clear
  D)
  the chloroplasts are generally much larger than mitochondria
  done clear
  View Answer play_arrow

• question_answer24) Keeping in view the 'fluid mosaic model' for the structure of cell membrane, which one 'of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)? [AIPMT (S) 2008]
  A)
  Both lipids and proteins can flip-flop
  done clear
  B)
  While lipids can rarely flip-flop, proteins cannot
  done clear
  C)
  While proteins can flip-flop, lipids cannot
  done clear
  D)
  Neither lipids, nor proteins can flip-flop
  done clear
  View Answer play_arrow

• question_answer25) Polysome is formed by [AIPMT (S) 2008]
  A)
  several ribosomes attached to a single Mrna
  done clear
  B)
  many ribosomes attached to a strand of endoplasmic reticulum
  done clear
  C)
  a ribosome with several subunits
  done clear
  D)
  ribosomes attached to each other in a linear arrangement
  done clear
  View Answer play_arrow

• question_answer26) Cellulose is the major component of cell walls of [AIPMT (S) 2008]
  A)
  Pythium
  done clear
  B)
  Xanthomonas
  done clear
  C)
  Pseudomonas
  done clear
  D)
  None of thise
  done clear
  View Answer play_arrow

• question_answer27) The two subunits of ribosome remain united at a critical ion level of [AIPMT (S) 2008]
  A)
  copper
  done clear
  B)
  manganese
  done clear
  C)
  magnesium
  done clear
  D)
  calcium
  done clear
  View Answer play_arrow

• question_answer28) Vacuole in a plant cell [AIPMT (S) 2008]
  A)
  is membrane-bound and contains storage proteins and lipids
  done clear
  B)
  is membrane-bound and contains water and excretory substances
  done clear
  C)
  lacks membrane and contains air
  done clear
  D)
  lacks membrane and contains water and excretory substances
  done clear
  View Answer play_arrow

• question_answer29) Middle lamella is mainly composed of [AIPMT (S) 2009]
  A)
  hemicellulose
  done clear
  B)
  muramic acid
  done clear
  C)
  calcium pectate
  done clear
  D)
  phosphoglycerides
  done clear
  View Answer play_arrow

• question_answer30) Plasmodesmata are [AIPMT (S) 2009]
  A)
  lignified cemented layers between cells
  done clear
  B)
  locmotory structures
  done clear
  C)
  membranes connecting the nucleus with plasmalemma
  done clear
  D)
  connections between adjacent cells
  done clear
  View Answer play_arrow

• question_answer31) The cell junctions called tight, adhering and gap junctions are found in [AIPMT (S) 2009]
  A)
  muscular tissue
  done clear
  B)
  connective tissue
  done clear
  C)
  epithelial tissue
  done clear
  D)
  neural tissue
  done clear
  View Answer play_arrow

• question_answer32) 

  Identify the components labelled A, B, C and D in the diagram below from the list 1 to 8 given along with [AIPMT (M) 2010] 1. Cristae of mitochondria 2. Inner membrane of mitochondria 3. Cytoplasm, 4. Smooth endoplasmic reticulum 5. Rough endoplasmic reticulum 6. Mitochondrial matrix 7. Cell vacuole 8. Nucleus

  A)

  5          4          8          3

  done clear B) 1          4          8          6 done clear C) 6          5          4          7 done clear D) 5          1          3          2 done clear View Answer play_arrow question_answer33) In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the [AIPMT (M) 2010] A) ribosomes done clear B) nucleus done clear C) dictyosomes done clear D) ER done clear View Answer play_arrow question_answer34) An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called [AIPMT (M) 2010] A) thylakoid done clear B) endoplasmic reticulum done clear C) plasmalemma done clear D) cytoskeleton done clear View Answer play_arrow question_answer35) Which one of the following has its own DNA? [AIPMT (S) 2010] A) Mitochondria done clear B) Dictyosome done clear C) Lysosome done clear D) Peroxisome done clear View Answer play_arrow question_answer36) The main arena of various types of activities of a cell is [AIPMT (S) 2010] A) plasma membrane done clear B) mitochondrion done clear C) cytoplasm done clear D) nucleus done clear View Answer play_arrow question_answer37) The plasma membrane consists mainly of [AIPMT (S) 2010] A) phospholipids embedded in a protein bilayer done clear B) proteins embedded in a phospholipid bilayer done clear C) proteins embedded in a polymer of glucose molecules done clear D) proteins embedded in a .carbohydrate bilayer  done clear View Answer play_arrow question_answer38)  The figure below shows the structure of a mitochondrion with its four parts labelled [A], [B], [C] and [D]. Select the part correctly matched with its function. [AIPMT (M) 2011]           A) D—Outer membrane-gives—rise to inner membrane by splitting done clear B) B—Inner membrane—forms infolding called cristae done clear C) C—Cristae—possess single circular DNA molecule and ribosomes done clear D) A—Matrix—major site for respiratory chain enzymes done clear View Answer play_arrow question_answer39) Which one of the following is not considered as a part of the endomembrane system? [AIPMT (M) 2011] A) Golgi complex done clear B) Peroxisome done clear C) Vacuole done clear D) Lysosome done clear View Answer play_arrow question_answer40) Which one of the following organisms is not an example of eukaryotic cells? [AIPMT (S) 2011] A) Escherichia coli done clear B) Euglena viridis done clear C) Amoeba, proteus done clear D) Paramecium caudatum done clear View Answer play_arrow question_answer41) Important site for formation of glycoproteins and glycolipids is [AIPMT (S) 2011] A) Golgi apparatus done clear B) plastid done clear C) lysosome done clear D) vacuole done clear View Answer play_arrow question_answer42) In eubacteria, a cellular component that resembles eukaryotic cells is [AIPMT (S) 2011] A) nucleus done clear B) ribosomes done clear C) cell wall done clear D) plasma membrane done clear View Answer play_arrow question_answer43) In land plants, the guard cells differ from other epidermal cells in having [AIPMT (S) 2011] A) mitochondria done clear B) enddplasmic reticulum done clear C) chloroplasts done clear D) cytoskeleton done clear View Answer play_arrow question_answer44) Peptide synthesis inside a cell takes place in [AIPMT (S) 2011] A) mitochondria done clear B) chromoplast done clear C) ribosomes done clear D) chloroplast done clear View Answer play_arrow question_answer45) Which one of the following structures is an organelle within an organelle? [AIPMT (M) 2012] A) Ribosome done clear B) Peroxisome done clear C) ER done clear D) Mesosome done clear View Answer play_arrow question_answer46) Which one of the following cellular parts is correctly described? [AIPMT (M) 2012] A) Thylakoids—Flattened membranous sacs forming the grana of chloroplasts done clear B) Centrioles—Sites   for   active   RNA synthesis done clear C) Ribosomes—Those on chloroplasts are larger (80 S) while those in the cytoplasm are smaller (70 S) done clear D) Lysosomes—Optimally active at a pH of about 8.5 done clear View Answer play_arrow question_answer47) Best defined function of manganese in green plants is [AIPMT (S) 2012] A) photolysis of water done clear B) Calvin cycle done clear C) nitrogen fixation done clear D) water absorption done clear View Answer play_arrow question_answer48) . Ribosomal RNA is actively synthesized in [AIPMT (S) 2012] A) lysosoines done clear B) nucleolus done clear C) nucleoplasm done clear D) ribosomes done clear View Answer play_arrow question_answer49) Which one of the following does not differ in E.coli and Chlamydomonas? [AIPMT (S) 2012] A) Ribosomes done clear B) Chromosomal organization done clear C) Cell wall done clear D) Cell membrane done clear View Answer play_arrow question_answer50) What is true about rihosomes? [AIPMT (S) 2012] A) The prokaryodc ribosomes are 80 S, where S stands for sedimentation coefficient done clear B) These are composed of ribonucleic acid and proteins done clear C) These are found only in eukaryotic cells done clear D) These are self-splicing introns of some RNAs                          done clear View Answer play_arrow question_answer51) Select the correct statement from the following regarding cell membrane. [AIPMT (S) 2012] A) \[N{{a}^{+}}\] and \[{{K}^{+}}\]ions move across cell membrane by passive transport done clear B) Proteins make up 60 to 70% of the cell membrane done clear C) Lipids are arranged in a bilayer with polar heads towards the inner part done clear D) None of thise done clear View Answer play_arrow question_answer52) A major site for synthesis of lipids is [NEET 2013] A) RER done clear B) SER done clear C) symplast done clear D) None of thise done clear View Answer play_arrow question_answer53) The Golgi complex plays a major role [NEET 2013] A) in trapping the light and transforming it into chemical energy done clear B) in digesting proteins and carbohydrates done clear C) as energy transferring organelles done clear D) None of thise done clear View Answer play_arrow question_answer54)  Which one of the following organelle in the figure correctly matches with its function? [NEET 2013] A) Rough endoplasmic reticulum, formation of glycoprotein's done clear B) Golgi apparatus, protein synthesis done clear C) Golgi apparatus, formation of glycolipids done clear D) None of thise done clear View Answer play_arrow question_answer55) The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known as [NEET 2014] A) microtubules done clear B) microfilaments done clear C) intermediate filaments done clear D) None of thise done clear View Answer play_arrow question_answer56) The osmotic expansion of a cell kept in water is chiefly regulated by [NEET 2014] A) mitochondria done clear B) vacuoles done clear C) plastids done clear D) None of thise done clear View Answer play_arrow question_answer57) Match the following and select the correct   [NEET 2014] Column l Column II A. Centriole 1. Infoldings in mitochondria B. Chlorophyll 2. Thylakoids C. Cristae 3. Nucleic acids D. Ribozymes 4. Bas'al body cilia or flagella A) 4          3         1         2 done clear B) 1          2         4          3 done clear C) 1          3         2           4                      done clear D) None of thise done clear View Answer play_arrow question_answer58) The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are [NEET [C] 2015] A) cristae done clear B) grana done clear C) stroma lamellae done clear D) None of thise done clear View Answer play_arrow question_answer59) Select the correct matching in the following pairs. [NEET [C] 2015] A) Smooth ER-Oxidation of phospholipids done clear B) Smooth ER-Synthesis of lipids done clear C) Rough ER-Synthesis of glycogen done clear D) None of thise done clear View Answer play_arrow question_answer60) Which one of the following is not an inclusion body found in prokaryotes? [NEET [C] 2015] A) Phosphate granule done clear B) Cyanophycean granule done clear C) Glycogen granule done clear D) None of thise done clear View Answer play_arrow question_answer61) DNA is not present in [NEET [C] 2015] A) chloroplast done clear B) ribosomes done clear C) nucleus done clear D) None of thise done clear View Answer play_arrow question_answer62) Nuclear envelope is derivative of [NEET [C] 2015] A) smooth endoplasmic reticulum done clear B) membrane of Golgi complex done clear C) microtubules done clear D) None of thise done clear View Answer play_arrow question_answer63) Which of the following structure is not found in a prokaryotic cell? [NEET (Re) 2015] A) Nuclear envelop done clear B) Ribosome done clear C) Mesosome done clear D) None of thise done clear View Answer play_arrow question_answer64) Match the columns and identify the correct option                               [NEET (Re) 2015] Column - I Column - II A. B. C. D. Thylakoids Cristae Cisternae Chromatin 1. 2. 3. 4. Disc-shaped sacs in Golgi apparatus Condensed structure of DNA Flat membranous sacs in stroma Infoldings in mitochondria A) 4          3          1          2 done clear B) 3          4          1          2 done clear C) 3          1          4          2 done clear D) None of thise done clear View Answer play_arrow question_answer65) The function of the gap junction is to [NEET (Re) 2015] A) performing cementing to keep neighbouring cells together done clear B) facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions small molecules and some large molecules done clear C) separate two cell from each other done clear D) None of thise done clear View Answer play_arrow question_answer66) Which of the following are not membrane bound? [NEET (Re) 2015] A) Vacuoles done clear B) Ribosomes done clear C) Lysosomes done clear D) Mesosomes done clear View Answer play_arrow question_answer67) A protoplast is a cell [NEET (Re) 2015] A) without plasma membrane done clear B) without nucleus done clear C) undergoing division done clear D) None of thise done clear View Answer play_arrow question_answer68) Cellular organelles with membranes are [NEET (Re) 2015] A) a nuclei, ribosomes and mitochondria done clear B) chromosomes, ribosomes and endoplasmic reticulum done clear C) endoplasmic reticulum, ribosomes and nuclei done clear D) None of thise done clear View Answer play_arrow question_answer69)  Mitochondria and chloroplast are: (i) Semi - autonomous organelles (ii) Formed by division of pre - existing organelles and they contain DNA but lack protein synthesizing machinery [NEET - 2016 Phase-I] Which one of the following options is correct? A) Both (i) and (ii) are correct done clear B) (ii) is true but (i) is false done clear C) (i) is true but (ii) is false done clear D) Both (i) and (ii) are false done clear View Answer play_arrow question_answer70) Which one of the following cell organelles is enclosed by a single membrane? [NEET - 2016 Phase-I] A) Mitochondria done clear B) Chloroplasts done clear C) Lysosomes done clear D) Nuclei done clear View Answer play_arrow question_answer71) A cell organelle containing hydrolytic enzymes is [NEET Solved Paper-2016 Phase-II] A) Lysosome done clear B) Microsome done clear C) Ribosome done clear D) Mesosome done clear View Answer play_arrow question_answer72) Which of the following components provides sticky character to the bacterial cell? [NEET-2017] A) Glycocalyx done clear B) Cell wall done clear C) Nuclear membrane done clear D) Plasma membrane done clear View Answer play_arrow question_answer73) Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP? [NEET-2017] A) Mitochondrion done clear B) Lysosome done clear C) Ribosome done clear D) Chloroplast done clear View Answer play_arrow question_answer74) The Golgi complex participates in [NEET - 2018] A) Respiration in bacteria done clear B) Formation of secretory vesicles done clear C) Fatty acid breakdown done clear D) Activation of amino acid done clear View Answer play_arrow question_answer75) Which of the following is true for nucleolus? [NEET - 2018] A) It takes part in spindle formation done clear B) It is a membrane-bound structure done clear C) Larger nucleoli are present in dividing cells done clear D) It is a site for active ribosomal RNA synthesis done clear View Answer play_arrow question_answer76) Which of the following events does not occur in rough endoplasmic reticulum? [NEET - 2018] A) Cleavage of signal peptide done clear B) Protein glycosylation done clear C) Protein folding done clear D) Phospholipid synthesis done clear View Answer play_arrow question_answer77) Which of the following statements regarding mitochondria is incorrect? [NEET 2019] A) Inner membrane is convoluted with infoldings done clear B) Mitochondrial matrix contains single circular DNA molecule and ribosomes done clear C) Outer membrane is permeable to monomers of carbohydrates, fats and proteins done clear D) Enzymes of electron transport are embedded in outer membrane. done clear View Answer play_arrow question_answer78) Which of the following statements is not correct? [NEET 2019] A) Lysosomes are membrane bound structures. done clear B) Lysosomes are formed by the process of packaging in the endoplasmic reticulum. done clear C) Lysosomes have numerous hydrolytic enzymes. done clear D) The hydrolytic enzymes of lysosomes are active under acidic pH. done clear View Answer play_arrow question_answer79) The concept of ''Omnis cellula-e cellula'' regarding cell division was first proposed by:   [NEET 2019] A) Schleiden done clear B) Aristotle done clear C) Rudolf Virchow done clear D) Theodore Schwann done clear View Answer play_arrow Study Package NEET PYQ-Cell The Unit Of Life   Buy Now     Please Wait you are being redirected.... You need to login to perform this action. You will be redirected in 3 sec × Reset Password. 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