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MCQs

Total Questions : 133 | Page 2 of 14 pages
Question 11. What is reduction potential?
  1.    The molecule loses an electron
  2.    An atom/molecule gains an electron
  3.    Reducing the power of an electron
  4.    Oxidation power of an electron
 Discuss Question
Answer: Option B. -> An atom/molecule gains an electron
Answer: (b).An atom/molecule gains an electron
Question 12. What is the name of the molecule which donates its electrons?
  1.    Reducing agent
  2.    Oxidative agent
  3.    Standard reduction potential
  4.    Oxidant
 Discuss Question
Answer: Option A. -> Reducing agent
Answer: (a).Reducing agent
Question 13. Which of the following act as a storage form of high energy phosphate?
  1.    Glucose-6-phosphate
  2.    Phosphoenolpyruvate
  3.    Phosphagens
  4.    Glycerol phosphate
 Discuss Question
Answer: Option C. -> Phosphagens
Answer: (c).Phosphagens
Question 14. How many amino acid residues are there in per turn of α-helix?
  1.    3.6
  2.    4.6
  3.    3.0
  4.    2.5
 Discuss Question
Answer: Option A. -> 3.6
Answer: (a).3.6
Question 15. Name the vitamins which cause scurvy.
  1.    Vitamin B
  2.    Vitamin B3
  3.    Vitamin C
  4.    Vitamin K
 Discuss Question
Answer: Option C. -> Vitamin C
Answer: (c).Vitamin C
Question 16. Arrange the following sequence of collagen synthesis in the correct order.
1) The entrance of polypeptide into the rough endoplasmic reticulum
2) Packaged in to transport vesicle
3) Hydroxylation of lysyl and prolyl residues
4) Formation of tropocollagen
5) Covalent cross-linking of tropocollagen
6) Collection of fibrils
  1.    2, 3, 4, 1, 6, 5
  2.    4, 3, 2, 1, 5, 6
  3.    1, 2, 3, 4, 6, 5
  4.    1, 3, 4, 2, 5, 6
 Discuss Question
Answer: Option D. -> 1, 3, 4, 2, 5, 6
Answer: (d).1, 3, 4, 2, 5, 6
Question 17. What is the fundamental unit of collagen?
  1.    Tropocollagen
  2.    Hydroxyproline
  3.    Hydroxylysine
  4.    Glycine
 Discuss Question
Answer: Option A. -> Tropocollagen
Answer: (a).Tropocollagen
Question 18. Name the protein which is responsible for extensibility and elasticity of connective tissues.
  1.    Collagen
  2.    Elastin
  3.    Actin
  4.    Keratin
 Discuss Question
Answer: Option B. -> Elastin
Answer: (b).Elastin
Question 19. What is the shape of the oxygen dissociation curve of myoglobin?
  1.    Linear
  2.    Hyperbola
  3.    Sigmoid
  4.    Parabola
 Discuss Question
Answer: Option B. -> Hyperbola
Answer: (b).Hyperbola
Question 20. Which of these are the possible cause of sickle cell anemia with respect to hemoglobin?
  1.    Defect in β-chain of hemoglobin
  2.    Defect in α-chain of hemoglobin
  3.    One copy of an abnormal β-globin gene
  4.    Two copies of an abnormal β-globin gene
 Discuss Question
Answer: Option D. -> Two copies of an abnormal β-globin gene
Answer: (d).Two copies of an abnormal β-globin gene

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