MCQ
Enzymes are:
- AProteins
- BLipids
- CCarbohydrates
- DNucleic acids
Explanation:
Enzymes are large biological molecules responsible for the thousands of metabolic processes that sustain life.
They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions, from the digestion of food to the synthesis of DNA.
Most enzymes are proteins.
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Reason : Anti-diuretic hormone $(ADH)$ is secreted by the posterior lobe of pituitary gland.
| List $- I$ | List $- II$ |
| $(a)$ $S$ phase | $(i)$ Proteins are synthesized |
| $(b)$ $G_2$ phase | $(ii)$ Inactive phase |
| $(c)$ Quiescent stage | $(iii)$ Interval between mitosis and initiation of $DNA$ replication |
| $(d)$ $\mathrm{G}_{1}$ phase | $(iv)$ $DNA$ replication |
Choose the correct answer from the options given below.
$(a) -(b) -(c)- (d)$