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Biotechnology Engineering

Cell Biology In Biotechnology MCQs

Practice Cell Biology In Biotechnology MCQs for competitive exams.

Cell Biology In Biotechnology MCQs

Practice questions from this topic.

Beta oxidation pathway of fatty acid oxidation resembles

  1. A. Krebs cycle
  2. B. Glycolysis
  3. C. ETS (electron transport system)
  4. D. Calvin cycle
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Match the entries in Group I with those in Group II . Group I Group II P. MTT 1. Dihydrofolate reductase Q. Annexin V 2. Succinate dehydrogenase R. Methotrexate 3. Microtubules S. Taxol 4. Phosphatidylserine

  1. A. P-3, Q-1, R-4, S-2
  2. B. P-2, Q-4, R-1, S-3
  3. C. P-2, Q-3, R-4, S-1
  4. D. P-4, Q-2, R-1, S-3
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Chromosomes counting is best done during

  1. A. Telophase
  2. B. Late prophase
  3. C. Late anaphase
  4. D. Metaphase
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Match the organelles in Group I with their functions in Group II . Group I Group II P. Lysosome 1. Digestion of foreign substances Q. Smooth ER 2. Protein targeting R. Golgi apparatus 3. Lipid synthesis S. Nucleolus 4. Protein synthesis 5. rRNA synthesis

  1. A. P-1, Q-3, R-2, S-5
  2. B. P-1, Q-4, R-5, S-3
  3. C. P-2, Q-5, R-3, S-4
  4. D. P-1, Q-3, R-4, S-5
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A mutant G a protein with increased GTPase activity would

  1. A. Not bind to GTP
  2. B. Not bind to GDP
  3. C. Show increased signaling
  4. D. Show decreased signaling
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Choose the correct signal transduction pathway.

  1. A. Hormone → 7 TM receptor → G protein → cAMP → PKA
  2. B. Hormone → G protein → 7 TM receptor → cAMP → PKA
  3. C. Hormone → 7 TM receptor → G protein → PKA → cAMP
  4. D. Hormone → 7 TM receptor → cAMP → G protein → PKA
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Which one of the following statements is true for actin?

  1. A. Actin filament is structurally polarized, and the two ends are not identical
  2. B. De novo actin polymerization is a single-step process
  3. C. The pointed end of the actin filaments is the fast-growing end
  4. D. Actin forms spindle fibers during mitosis
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Match sub-cellular organelles listed in Group I with their features listed in Group II . Group I Group II P. Mitochondrion 1. Single membrane enclosed Q. Chloroplast 2. Double-membrane enclosed R. Nucleus 3. Maternal inheritance S. Endoplasmic reticulum 4. Endosymbiotic origin

  1. A. P-1, Q-4, R-2, S-3
  2. B. P-2, Q-3, R-4, S-1
  3. C. P-3, Q-4, R-2, S-1
  4. D. P-3, Q-1, R-4, S-2
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Human olfactory receptors are

  1. A. Ionotropic receptors
  2. B. G-protein coupled receptors
  3. C. Thermoreceptors
  4. D. Fc receptors
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When thymidine synthesis is inhibited, eukaryotic cells will be arrested at

  1. A. End of S phase
  2. B. End of M phase
  3. C. G 1 /S interphase
  4. D. G 2 /M interphase
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The lipopolysaccharides present in bacterial cell wall has lipid A which is connected to

  1. A. O-polysaccharide
  2. B. Core polysaccharide
  3. C. Both with O-polysaccharide and core polysaccharide
  4. D. Rhamnose-mannose disaccharide
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The proton-sugar transporter in bacteria is

  1. A. Uniport
  2. B. Symport
  3. C. Antiport
  4. D. Diport
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