Cell Biology In Biotechnology MCQ

Test your knowledge with important Cell Biology In Biotechnology MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Cell Biology In Biotechnology MCQs at Bissoy

• Beta oxidation pathway of fatty acid oxidation resembles
  ক

  Krebs cycle

  খ

  Glycolysis

  গ

  ETS (electron transport system)

  ঘ

  Calvin cycle
• Match the entries in Group I with those in Group II.<br>
  ক

  <table class="table-style-1"> <tr> <td><strong>Group I</strong></td> <td><strong>Group II</strong></td> </tr> <tr> <td>P. MTT</td> <td>1. Dihydrofolate reductase</td> </tr> <tr> <td>Q. Annexin V</td> <td>2. Succinate dehydrogenase</td> </tr> <tr> <td>R. Methotrexate</td> <td>3. Microtubules</td> </tr> <tr> <td>S. Taxol</td> <td>4. Phosphatidylserine</td> </tr></table> P-3, Q-1, R-4, S-2

  খ

  P-2, Q-4, R-1, S-3

  গ

  P-2, Q-3, R-4, S-1

  ঘ

  P-4, Q-2, R-1, S-3
• Chromosomes counting is best done during
  ক

  Telophase

  খ

  Late prophase

  গ

  Late anaphase

  ঘ

  Metaphase
• Match the organelles in Group I with their functions in Group II.<br>
  ক

  <table class="table-style-1"> <tr> <td><strong>Group I</strong></td> <td><strong>Group II</strong></td> </tr> <tr> <td>P. Lysosome</td> <td>1. Digestion of foreign substances</td> </tr> <tr> <td>Q. Smooth ER</td> <td>2. Protein targeting</td> </tr> <tr> <td>R. Golgi apparatus</td> <td>3. Lipid synthesis</td> </tr> <tr> <td>S. Nucleolus</td> <td>4. Protein synthesis</td> </tr><tr> <td></td> <td>5. rRNA synthesis</td> </tr></table> P-1, Q-3, R-2, S-5

  খ

  P-1, Q-4, R-5, S-3

  গ

  P-2, Q-5, R-3, S-4

  ঘ

  P-1, Q-3, R-4, S-5
• A mutant G_a protein with increased GTPase activity would
  ক

  Not bind to GTP

  খ

  Not bind to GDP

  গ

  Show increased signaling

  ঘ

  Show decreased signaling
• Choose the correct signal transduction pathway.
  ক

  Hormone → 7 TM receptor → G protein → cAMP → PKA

  খ

  Hormone → G protein → 7 TM receptor → cAMP → PKA

  গ

  Hormone → 7 TM receptor → G protein → PKA → cAMP

  ঘ

  Hormone → 7 TM receptor → cAMP → G protein → PKA
• Which one of the following statements is true for actin?
  ক

  Actin filament is structurally polarized, and the two ends are not identical

  খ

  De novo actin polymerization is a single-step process

  গ

  The pointed end of the actin filaments is the fast-growing end

  ঘ

  Actin forms spindle fibers during mitosis
• Match sub-cellular organelles listed in Group I with their features listed in Group II.<br>
  ক

  <table class="table-style-1"> <tr> <td><strong>Group I</strong></td> <td><strong>Group II</strong></td> </tr> <tr> <td>P. Mitochondrion</td> <td>1. Single membrane enclosed</td> </tr> <tr> <td>Q. Chloroplast</td> <td>2. Double-membrane enclosed</td> </tr> <tr> <td>R. Nucleus</td> <td>3. Maternal inheritance</td> </tr> <tr> <td>S. Endoplasmic reticulum</td> <td>4. Endosymbiotic origin</td> </tr></table> P-1, Q-4, R-2, S-3

  খ

  P-2, Q-3, R-4, S-1

  গ

  P-3, Q-4, R-2, S-1

  ঘ

  P-3, Q-1, R-4, S-2
• Human olfactory receptors are
  ক

  Ionotropic receptors

  খ

  G-protein coupled receptors

  গ

  Thermoreceptors

  ঘ

  Fc receptors
• When thymidine synthesis is inhibited, eukaryotic cells will be arrested at
  ক

  End of S phase

  খ

  End of M phase

  গ

  G₁/S interphase

  ঘ

  G₂/M interphase
• The lipopolysaccharides present in bacterial cell wall has lipid A which is connected to
  ক

  O-polysaccharide

  খ

  Core polysaccharide

  গ

  Both with O-polysaccharide and core polysaccharide

  ঘ

  Rhamnose-mannose disaccharide
• The proton-sugar transporter in bacteria is
  ক

  Uniport

  খ

  Symport

  গ

  Antiport

  ঘ

  Diport
• Centromere duplication begins as the cell
  ক

  Enters the S-phase

  খ

  Enters the G₁-phase

  গ

  Is half-way in S-phase

  ঘ

  Is half-way in G₁-phase
• Murein is a
  ক

  Polypeptide

  খ

  Peptidoglycan

  গ

  Polysaccharide

  ঘ

  Lipid
• Lysosomes contain
  ক

  Lytic enzymes

  খ

  Carbohydrates

  গ

  Lipids

  ঘ

  Nucleic acids
• Which of the following statements are correct about eukaryotic cell cycle?<br>P. CDKs can phosphorylate proteins in the absence of cyclins.<br>Q. CDKs can be inactivated by phosphorylation.<br>R. Degradation of cyclins is required for cell cycle progression.<br>S. CDKs are not involved in chromosome condensation.
  ক

  P and R only

  খ

  P and S only

  গ

  P, Q and R only

  ঘ

  Q and R only
• Which of the following are energy transducing membranes?<br>P. Plasma membrane of bacteria<br>Q. Inner membrane of chloroplasts<br>R. Inner membrane of mitochondria
  ক

  P and Q only

  খ

  P and R only

  গ

  Q and R only

  ঘ

  P, Q and R
• The most variable period of the cell cycle is
  ক

  S phase

  খ

  G₂-phase

  গ

  G₁ phase

  ঘ

  M phase
• Which of the following rings of the basal granule in gram negative bacteria is anchored to the plasma membrane?
  ক

  P-ring

  খ

  M-ring

  গ

  S-ring

  ঘ

  L-ring
• The cytokinetic organelle in plant cells is
  ক

  Centriole

  খ

  Phragmoplast

  গ

  Proplastid

  ঘ

  Chromoplastid
• Cell type A secretes molecule X into the culture medium. Cell type B in the same culture responds to the molecule X by expressing protein Y. Which one of the following modes of signaling represents the interaction between A and B?
  ক

  Autocrine

  খ

  Juxtacrine

  গ

  Paracrine

  ঘ

  Intracrine
• Apoptosis is characterized by
  ক

  Necrosis

  খ

  Programmed cell death

  গ

  Membrane leaky syndrome

  ঘ

  Cell cycle arrest process
• In eukaryotes, cytokinesis is inhibited by
  ক

  Cytochalasin D

  খ

  Vinblastine

  গ

  Nocodazole

  ঘ

  Colchicine
• Peptidyl transferase are associated to
  ক

  Saller subunit of ribosomes

  খ

  Larger subunit of ribosomes

  গ

  Golgi body

  ঘ

  Endoplasmic reticulum
• Which of the following is a Pattern Recognition Receptor (PRR)?
  ক

  Lipopolysaccharide

  খ

  Mannose-binding lectin

  গ

  Zymosan

  ঘ

  Peptidoglycan
• A cell in G₁ of interphase has 12 chromosomes. How many chromatids will be found per cell during metaphase II of meiosis?
  ক

  6

  খ

  12

  গ

  18

  ঘ

  24
• Match the products in Group I with the applications in Group II.<br>
  ক

  <table class="table-style-1"> <tr> <td><strong>Group I</strong></td> <td><strong>Group II</strong></td> </tr> <tr> <td>P. Digoxin</td> <td>1. Muscle relaxant</td> </tr> <tr> <td>Q. Stevioside</td> <td>2. Anti-cancer agent</td> </tr> <tr> <td>R. Atropine</td> <td>3. Cardiovascular disorder</td> </tr> <tr> <td>S. Vinblastine</td> <td>4. Sweetener</td> </tr></table> P-1, Q-4, R-3, S-2

  খ

  P-3, Q-2, R-1, S-4

  গ

  P-3, Q-4, R-1, S-2

  ঘ

  P-2, Q-3, R-1, S-4
• Primary neutransmitter that playa role in sleep, appetite, arousal and mood is
  ক

  Serotonin

  খ

  Acetylcholine

  গ

  Octopamine

  ঘ

  Glutamate
• In eukaryotic cell, DNA replication takes place during
  ক

  S-phase

  খ

  G₁-phase

  গ

  G₂-phase

  ঘ

  M-phase
• Fusicoccin promotes cotyledon growth by promoting
  ক

  Cell division

  খ

  Cell wall biosynthesis

  গ

  Tonoplast acidification

  ঘ

  Cell wall acidification