Biomolecules (Biology) · Question 9

Lecithin, a small molecular weight organic compound found in living tissues, is an example of:

1. Amino acids
2. Phospholipids
3. Glycerides
4. Carbohydrates

The cofactor of the enzyme carboxypeptidase is:

1. Zinc
2. Niacin
3. Flavin
4. Haem

Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of:

1. Cofactor inhibition
2. Feedback inhibition
3. Competitive inhibition
4. Enzyme activation

Match List I with List II Choose the correct answer from the options given below.

1. A-IV, B-I, C-II, D-III
2. A-I, B-II, C-III, D-IV
3. A-II, B-III, C-IV, D-I
4. A-III, B-IV, C-I, D-II

Match List I with List II: Choose the correct answer from the options given below :

1. A-IV, B-II, C-III, D-I
2. A-III, B-II, C-I, D-IV
3. A-II, B-IV, C-I, D-III
4. A-IV, B-I, C-III, D-II

Regarding catalytic cycle of an enzyme action, select the correct sequential steps : Choose the correct answer from the options given below :

1. E, A, D, C, B
2. A, E, B, D, C
3. B, A, C, D, E
4. E, D, C, B, A

Which of the following is a nucleotide?

1. Uridine
2. Adenylic acid
3. Guanine
4. Guanosine

Ligases is a class of enzymes responsible for catalysing the linking together of two compounds. Which of the following bonds is not catalysed by it?

1. C – C
2. P – O
3. C – O
4. C – N

Which of the following are not fatty acids? Choose the correct answer from the options given below :

1. C, D and E only
2. A and B only
3. A, D and E only
4. B and C only

Which of the following graphs depicts the effect of substrate concentration on velocity of enzyme catalysed reaction?

1. [figure]
2. [figure]
3. [figure]
4. [figure]