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Cytology MCQ

80 MCQ questions with answers and explanations · page 3 of 4

Test yourself▶ 25 question test▶ 50 question test

Q51. Kreb cycle takes place in-

  1. AVesicles of E.R
  2. BMitochondria
  3. CDictyosomes
  4. DChloroplast
Show answer & explanation

Answer: B) Mitochondria

Q52. Energy currency of cell for cellular process-

  1. AAMP
  2. BATP
  3. CRNA
  4. DDNA
Show answer & explanation

Answer: B) ATP

Q53. Both respiration and photosynthesis require-

  1. ASun light
  2. BChlorophyll
  3. CGlucose
  4. DCytochromes
Show answer & explanation

Answer: D) Cytochromes

Q54. Which one can respire in ansence of oxygen-

  1. ASeed
  2. BLeaves
  3. CStem
  4. DRoot
Show answer & explanation

Answer: A) Seed

Q55. In biology, water soluble substances as referred to :

  1. AHydrophilic
  2. BHydrokinetic
  3. CHydrodynamic
  4. DHydrophobic
Show answer & explanation

Answer: A) Hydrophilic

Q56. Which one among the following statements is correct ?

  1. AProkaryotic cells possess nucleus
  2. BCell membrane is present both in plant and animal cells
  3. CMitochondria and chloroplasts are not found in eukaryotic cells
  4. DRibosomes are present in eukaryotic cells only
Show answer & explanation

Answer: B) Cell membrane is present both in plant and animal cells

Q57. Which of the following structure is present in mitochondria

  1. AQuantasomes
  2. BOxysomes
  3. CPolysomes
  4. DDictyosomes
Show answer & explanation

Answer: B) Oxysomes

Q58. Centriole take part in-

  1. ANucleolus formation
  2. BStart of cell division
  3. CCell plate formation
  4. DSpindle formation
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Answer: D) Spindle formation

Q59. Gustation refers to the sense of which of the following ?

  1. ASmell
  2. BHearing
  3. CTactile
  4. DTaste
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Answer: D) Taste

Q60. Mitochondrial cristae are site of-

  1. ABreakdown of macromolecules
  2. BProtein synthesis
  3. CPhosphorylation of flavoprotein
  4. DOxidation-reduction reaction
Show answer & explanation

Answer: D) Oxidation-reduction reaction

Q61. Nucleolus takes part in synthesis of-

  1. Ar RNA
  2. Bt RNA
  3. Cm RNA
  4. DDNA
Show answer & explanation

Answer: A) r RNA

Q62. Rigidity of cell wall is due to presence of-

  1. ACellulose
  2. BLignin
  3. Ca and b both
  4. DSuberin
Show answer & explanation

Answer: C) a and b both

Q63. Centrioles are found in-

  1. AGreen plants
  2. BAnimals
  3. CBacteria and cynobateria
  4. DBoth b and c
Show answer & explanation

Answer: B) Animals

Q64. Leucoplast represent-

  1. AColourless plastids
  2. BProplastids
  3. CCell adhesives
  4. DPlastids with variable colouration
Show answer & explanation

Answer: A) Colourless plastids

Q65. A protein is synthesized in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membrane layers it has to pass to reach its destination ?

  1. A2
  2. B3
  3. C4
  4. D5
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Answer: B) 3

Q66. Vacuole is covered by single membrane called-

  1. APlasmalemma
  2. BCell membrane
  3. CTonoplast
  4. DCell wall
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Answer: C) Tonoplast

Q67. Cell organelles covered by single membrane-

  1. AGlyoxysome
  2. BLysosome
  3. CPer-oxisome
  4. DAll the above
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Answer: D) All the above

Q68. Significance of mitosis cell division is-

  1. AIncreasing cellular mass
  2. BSwift division
  3. COccur in every tissue of body
  4. DProducing cell genetically similar to parent cell
Show answer & explanation

Answer: D) Producing cell genetically similar to parent cell

Q69. Which one of the following is the smallest unit showing the properties of life such as capacity for metabolism, for response to the environment, growth and reproduction ?

  1. AGene
  2. BChromosome
  3. CNucleus
  4. DCell
Show answer & explanation

Answer: D) Cell

Q70. As compared to mitosis meosis has-

  1. AExchange of chromatid segments
  2. BNo telophase
  3. CDaughter cells similar to parent cells
  4. DDuplication chromosomes occurs during anaphase
Show answer & explanation

Answer: A) Exchange of chromatid segments

Q71. In a living cell what is the site of ribosome formation ?

  1. AGolgi bodies
  2. BEndoplasmic reticulum
  3. CPlasma membrane
  4. DNucleolus
Show answer & explanation

Answer: D) Nucleolus

Q72. Which one of the following is the principal structural elements of a living cell ?

  1. AOxygen
  2. BHydrogen
  3. CCarbon
  4. DNitrogen
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Answer: C) Carbon

Q73. Which one of the following is considered as a cell within a cell ?

  1. ARibosome
  2. BChloroplast
  3. CLysosomes
  4. DGolgi apparatus
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Answer: B) Chloroplast

Q74. Mitochondria are able to produce their own

  1. ANucleus
  2. BProteins
  3. CChloroplasts
  4. DDigestive enzymes
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Answer: D) Digestive enzymes

Q75. Which one of the following is active transport ?

  1. AIt is the movement of a substance against a diffusion gradient with the use of energy from respiration.
  2. BIt is the movement of a substance against a diffusion gradient without the use of energy.
  3. CIt is the movement of a substance against a diffusion gradient with the use of energy from photosynthesis.
  4. DIt is the movement of a substance along a diffusion gradient with the use of energy from respiration.
Show answer & explanation

Answer: A) It is the movement of a substance against a diffusion gradient with the use of energy from respiration.

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