8th Class Science Cell - Structure and Functions Question Bank

done Cell Total Questions - 20

• question_answer1)
  Which of the following sets contains unicellular organisms only?
  A)
  Amoeba, Allium, Saccharomyces done clear
  B)
  Euglena, Chlorella, Escherichia done clear
  C)
  Euglena, Saccharomyces, Allium done clear
  D)
  Rhizopus, Amoeba, Solatium done clear
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• question_answer2)
  Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.

  (i)  Robert Brown discovered nucleus in the cells.

  (ii) The plasma membrane is made up of a double layer of lipid molecules and protein molecules.

  (iii) Chloroplast helps in osmoregulation and maintains the osmotic pressure in a cell.

  (iv) Carbohydrates and fats are completely oxidised with the help of enzymes present in the mitochondria.

   
  A)

  (i)	(ii)	(iii)	(iv)
  T	T	F	F

    done clear
  B)

  (i)	(ii)	(iii)	(iv)
  T	T	F	T

    done clear
  C)

  (i)	(ii)	(iii)	(iv)
  T	F	T	T

    done clear
  D)

  (i)	(ii)	(iii)	(iv)
  T	F	F	T

    done clear
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• question_answer3)
  Match column I with column II and select the correct option from the codes given below.

  Column I	Column II
  (a) Ribosomes	(i) Jelly-like substance
  (b) Lysosomes	(ii) Powerhouse of the cell
  (c) Endoplasmic reticulum	(iii) Site of protein synthesis
  (d) Mitochondria	(v) Suicide bags

  A)
  (a) - (iii), (b) - (v), (c) - (iv), (d) - (i), (e) - (ii) done clear
  B)
  (a) - (iv), (b) - (v), (c) - (iii), (d) - (i), (e) - (ii) done clear
  C)
  (a) - (iii), (b) - (v), (c) - (i), (d) - (iv), (e) - (ii) done clear
  D)
  (a) - (iv), (b) - (v), (c) - (ii), (d) - (i), (e)-(iii) done clear
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• question_answer4)
  Refer to the given terms.

  (i) RBC	(ii) WBC
  (iii) Blood	(iv) Muscle
  (v) Blood vessels	(vi) Brain
  (vii) Heart	(viii) Lung
  (ix) Sperm	(x) Kidney

  Select the option which correctly classifies the given terms into cell, tissue and organ.                
  A)

  Cell	Tissue	Organ
  (i), (ii), (ix)	(iii), (iv)	(v), (vi), (vii), (viii), (x)

                  done clear
  B)

  Cell	Tissue	Organ
  (i), (ii), (iii), (x)	(iv), (v)	(vi), (vii), (viii), (ix)

                  done clear
  C)

  Cell	Tissue	Organ
  (i), (ii), (iv), (ix)	(iii), (v), (vi)	(vii), (viii), (x)

                  done clear
  D)

  Cell	Tissue	Organ
  (i), (ii), (ix)	(iii), (iv), (v)	(vi), (vii), (viii), (x)

  done clear
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• question_answer5)
  In the given figure, showing the ultrastructure of a plant cell, identify the parts marked as P and Q and select the correct option regarding these.

  (i)   Part P helps in osmoregulation.

  (ii) Cellular respiration occurs in part Q.

  (iii) Synthesis of sugars occurs in part Q.

  (iv) Part P provides colour to flowers and fruits.

   
  A)
  (i) and (ii) only done clear
  B)
  (i) and (iii) only done clear
  C)
  (iii) and (iv) only done clear
  D)
  (ii) and (iv) only done clear
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• question_answer6)
  Read the given statements and select the option which correctly fill the blanks (i) - (iv).

  (i) _____ is membrane bound sac filled with fluid.

  (ii) _____ is found in cytoplasm and on endoplasmic reticulum.

  (iii) _____ is involved in the formation of lysosome and peroxisome.

  (iv) _____is capable of digesting any microorganism that enters the cell.

                 
  A)

  (i)	(ii)	(iii)	(iv)
  Ribosome	Lysosome	Golgi apparatus	Vacuole

                  done clear
  B)

  (i)	(ii)	(iii)	(iv)
  Vacuole	Ribosome	Golgi apparatus	Lysosome

                  done clear
  C)

  (i)	(ii)	(iii)	(iv)
  Ribosome	Lysosome	Vacuole	Golgi apparatus

                  done clear
  D)

  (i)	(ii)	(iii)	(iv)
  Lysosome	Ribosome	Vacuole	Golgi apparatus

  done clear
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• question_answer7)
  Which of the following is a correct sequence?

  (i) Cell	(ii) Tissue
  (iii) Organ system	(iv) Organ
  (v) Organism

  A)
  (i) \[\to \] (ii) \[\to \] (iv) \[\to \] (iii) \[\to \] (v) done clear
  B)
  (i) \[\to \] (iii) \[\to \] (iv) \[\to \] (ii) \[\to \] (v) done clear
  C)
  (i) \[\to \] (v) \[\to \] (iv) \[\to \] (iii) \[\to \] (ii) done clear
  D)
  (i) \[\to \] (v) \[\to \] (iii) \[\to \] (ii) \[\to \] (iv) done clear
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• question_answer8)
  Correct the given statements by replacing the underlined words and select the correct option.

  (i)  The viscous fluid present in the nucleus is called ___cytoplasm___.

  (ii) ___Vacuoles___ are rod shaped structures which oxidise food to provide energy.

  (iii) ___Mitochondria___ contain green pigment chlorophyll and take part in photosynthesis.

  (iv) ___Lysosomes___ take part in synthesis of proteins.

   
  A)

  (i)-Nucleoplasm,	(ii)-Lysosomes,
  (iii)-Plastids,	(iv)-Centrosomes

  done clear
  B)

  (i)-Protoplasm,	(ii)-Ribosomes,
  (iii)-Centrosomes,	(iv)-Golgi bodies

  done clear
  C)

  (i)-Nucleoplasm,	(ii)-Mitochondria,
  (iii)-Chloroplasts,	(iv)-Ribosomes

    done clear
  D)

  (i)-Protoplasm,	(ii)-Plastids,
  (iii)-Chloroplasts,	(iv)-Ribosomes

  done clear
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• question_answer9)
  Refer to the given figure and select the incorrect statement(s).

  (i) The part labelled P is found in plant cell only.

  (ii) The part labelled Q is cell wall, which provides rigidity to a plant cell.

  (iii) The part labelled R is the controlling centre.

  (iv) The part labelled R gets its shape from part labelled P.

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

• question_answer10)

  Read the given paragraph.

  The cytoplasm of the cells of a tomato plant contains organelle X having different pigments. Pigment Y present in leaves of plant and impart green colour whereas pigment Z present in fruits of plant and impart red colour. Select the option which correctly identifies X, Y and Z.

   
  A)

  X	Y	Z
  Plastid	Leucoplast	Chromoplast

  done clear
  B)

  X	Y	Z
  Plastid	Chloroplast	Chromoplast

  done clear
  C)

  X	Y	Z
  Plastid	Chloroplast	Leucoplast

  done clear
  D)

  X	Y	Z
  Plastid	Chromoplast	Chloroplast

  done clear
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• question_answer11)
  Which of the following statements is/are correct?

  (i)  The nucleoplasm and the cytoplasm together make up the protoplasm.

  (ii) Chloroplasts are a type of plastids, which occur in plant cells.

  (iii) In many multicellular organisms, all cells have projections called cilia and flagella.

  (iv) Cell destruction occurs by centrosomes.

  A)
  (i) and (ii) only done clear
  B)
  (i), (ii) and (iii) only done clear
  C)
  (i) only done clear
  D)
  (iii) and (iv) only done clear
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• question_answer12)
  Which of the following organelles differentiate between plant cell and animal cell?

  (i)   Cytoplasm	(ii) Nucleus
  (iii) Cell wall	(iv) Large vacuole

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

• question_answer13)
  Which of the following is incorrect about the given figures?
  A)
  Both are unicellular eukaryotic organisms. done clear
  B)
  a is unicellular while b is multicellular organism. done clear
  C)
  Both are capable of independent existence. done clear
  D)
  Both (b) and (c) done clear
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• question_answer14)
  Which of the following pairs are correctly matched?

  (i)  Protoplasm - Purkinje

  (ii) Discovery of cell - Leeuwenhoek

  (iii) Cell theory - Schwann

  (iv) Omnis cellula-e-cellula - Virchow

  (v) Nucleolus - Robert Brown

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

• question_answer15)
  What is the major difference between a human skin cell and a human egg cell?
  A)
  The egg cell has twice as many chromosomes as the skin cell. done clear
  B)
  The egg cell has half as many chromosomes as the skin cell. done clear
  C)
  The skin cell has no genetic information in its chromosomes. done clear
  D)
  Only the egg cell has a nucleus. done clear
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• question_answer16)
  Refer to the given figure and select the correct statement regarding it.

  (i)  P is an important site for protein synthesis.

  (ii)  R transfers the characteristics of a cell that are formed during cell division.

  (iii) Q is a dense fluid like agranular substance.

  (iv) P contains DNA while R contains RNA.

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

• question_answer17)
  Select the option which correctly match the marked parts P, Q, R and S in the given figure with the functions given below.

  (i)   Oxidation of food during cell respiration

  (ii) Storage and secretion of substances from the cell

  (iii) Allow minerals to pass through

  (iv) Transport of substances within cell.

  A)

  P	Q	R	S
  (iv)	(iii)	(ii)	(i)

  done clear
  B)

  P	Q	R	S
  (i)	(iv)	(iii)	(ii)

  done clear
  C)

  P	Q	R	S
  (iii)	(ii)	(iv)	(i)

  done clear
  D)

  P	Q	R	S
  (iii)	(ii)	(i)	(iv)

  done clear
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• question_answer18)
  Endoplasmic reticulum is a network of interconnecting membranous structures filled with fluid. Which of the following cells would most likely have high concentration of densely packed rough endoplasmic reticulum?
  A)
  A bioluminescent bacterial cell done clear
  B)
  A functional phloem at maturity done clear
  C)
  An amoeba engulfing small ciliates done clear
  D)
  A pancreatic cell engaged in the production of digestive enzymes done clear
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• question_answer19)

  Refer to the given paragraph.

  X and Y are the two type of cells. The X have a well organised nucleus which is separated from the cytoplasm by the nuclear membrane. On the other hand, Y do not have a true nucleus and their nuclear material is in direct contact with cytoplasm. Identify X and Y and select the correct option.

   
  A)
  X could be Mycoplasma whereas Y could be Amoeba. done clear
  B)
  X could be Amoeba whereas Y could be Mycoplasma. done clear
  C)
  X could be nerve cells whereas Y could be xylem cells. done clear
  D)
  X could be xylem cells whereas Y could be nerve cells. done clear
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• question_answer20)
  Which of the following statements is/are incorrect regarding genes?

  (i)  They control the transfer of hereditary characteristics.

  (ii) Nucleolus carries all the genes.

  (iii) They are part of chromosomes.

  (iv) They are found only in the nucleus.

  A)
  (iii) only                       done clear
  B)
  (iii) and (iv) only          done clear
  C)
  (i) only             done clear
  D)
  (ii) and (iv) only done clear
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