Biology

ENZYMES MCQs

Total Questions : 178

Page 1 of 18 pages
Question 1. Enzyme activity can be blocked or retarded on minute disturbance in
  1.    density
  2.    optimum ph
  3.    temperature
  4.    concentration
 Discuss Question
Answer is Option B. -> optimum ph
Answer: (b).optimum ph
Question 2. Non-protein part of an enzyme is called
  1.    co-enzyme
  2.    co-factor
  3.    substrate
  4.    activator
 Discuss Question
Answer is Option B. -> co-factor
Answer: (b).co-factor
Question 3. Inactive form of pepsin which has power of destroying cell's internal structure is known as
  1.    pepsinogen
  2.    pectin
  3.    pancreatic
  4.    amino pectin
 Discuss Question
Answer is Option A. -> pepsinogen
Answer: (a).pepsinogen
Question 4. An enzyme which is devoid of its either prosthetic group or co-enzyme is designates as
  1.    holoenzyme
  2.    apoenzyme
  3.    substrate
  4.    coenzyme
 Discuss Question
Answer is Option B. -> apoenzyme
Answer: (b).apoenzyme
Question 5. A definite charge bearing site of an enzyme on which a chemical substance attaches itself is called
  1.    active site
  2.    available site
  3.    catalytic site
  4.    binding site
 Discuss Question
Answer is Option A. -> active site
Answer: (a).active site
Question 6. Organic catalysts may also be called as
  1.    Chemical Catalysts
  2.    Biological catalysts
  3.    Physical catalysts
  4.    Situational Catalysts
 Discuss Question
Answer is Option B. -> Biological catalysts
Answer: (b).Biological catalysts
Question 7. PH value of above 7 indicates
  1.    pure water
  2.    pure enzyme
  3.    pure alkaline
  4.    pure acidic
 Discuss Question
Answer is Option C. -> pure alkaline
Answer: (c).pure alkaline
Question 8. Amylase becomes denatured at a alkaline pH of
  1.    6
  2.    7
  3.    8
  4.    9
 Discuss Question
Answer is Option D. -> 9
Answer: (d).9
Question 9. More the hydrogen peroxide (H₂O₂) in urine, the
  1.    lighter the color of the strip
  2.    acidic the urine be
  3.    darker the color of the strip
  4.    more healthier a person be
 Discuss Question
Answer is Option C. -> darker the color of the strip
Answer: (c).darker the color of the strip
Question 10. Starch (C₆H₁₀O₅)n is a form of
  1.    proteins
  2.    fats
  3.    minerals
  4.    carbohydrate
 Discuss Question
Answer is Option D. -> carbohydrate
Answer: (d).carbohydrate