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Sciencopedia

biology

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following reactions is the most common type of catabolic reaction occurring in animal body?

  1. dehydration
  2. hydrolysis
  3. elimination
  4. glucogenesis
  5. condensation
Question 2 Multiple Choice (Single Answer)

If a person undergoing continued starving has higher level of nitrogen in his urine, which of the following is one of the reasons for this condition?

  1. Glycogen breakdown in liver.
  2. Breakdown of structural proteins.
  3. Dissolution of adipose tissue.
  4. Excessive secretion of ADH.
  5. Development of tumor in pituitary gland.
Question 3 Multiple Choice (Single Answer)

Proline, a non alpha amino acid cannot fit itno alpha helical structure. This lead to a bend in the peptide chain. What type of protein structure is then formed?

  1. Beta primary
  2. Beta secondary
  3. Alpha secondary
  4. Tertiary
  5. Quaternary
Question 4 Multiple Choice (Single Answer)

Which of the following statements about fats is incorrect?

  1. Fats can be a cell structure.
  2. Fats can be component of hormones.
  3. Fats are a more efficient form of energy storage than the proteins.
  4. Fats are a less efficient form of energy storage than carbohydrate.
  5. Fats are a type of lipids.
Question 5 Multiple Choice (Single Answer)

Chitin, a polysaccharide cannot be digested by animals just like cellulose. But chitin possesses an acetyl-amino group at the second carbon unlike cellulose. What molecule is involved in the breaking of the beta-1,4-glycoside linkages of cellulose and chitin?

  1. Water
  2. Nitrogen
  3. Oxygen
  4. Alpha-1, 4- glycosidase
  5. Beta-1, 4- glycosidase
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