Biomolecules and Chemistry in Everyday Life 2 Question 9
10. The correct match between Item I and Item II is
| Item I | Item II |
|---|---|
| A. Allosteric effect | P. Molecule binding to the active site of enzyme. |
| B. Competitive inhibitor |
Q. Molecule crucial for communication in the body. |
| C. Receptor | R. Molecule binding to a site other than the active site of enzyme. |
| D. Poison | S. Molecule binding to the enzyme covalently. |
(a) $\mathrm{A} \rightarrow \mathrm{P}$; $\mathrm{B} \rightarrow \mathrm{R}$; $\mathrm{C} \rightarrow \mathrm{S}$; $\mathrm{D} \rightarrow \mathrm{Q}$
(b) $\mathrm{A} \rightarrow \mathrm{P}, \mathrm{B} \rightarrow \mathrm{R} ; \mathrm{C} \rightarrow \mathrm{Q} ; \mathrm{D} \rightarrow \mathrm{S}$
(c) $\mathrm{A} \rightarrow \mathrm{R} ; \mathrm{B} \rightarrow \mathrm{P} ; \mathrm{C} \rightarrow \mathrm{S} ; \mathrm{D} \rightarrow \mathrm{Q}$
(d) $\mathrm{A} \rightarrow \mathrm{R} ; \mathrm{B} \rightarrow \mathrm{P}$; $\mathrm{C} \rightarrow \mathrm{Q}$; $\mathrm{D} \rightarrow \mathrm{S}$
(2019 Main, 11 Jan II)
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Answer:
Correct Answer: 10. (d)
Solution:
- (A) Molecule binding to a site other than the active site of enzyme is called allosteric effect.
(B) Molecule binding to the active site of enzyme is called competitive inhibitor.
(C) Molecule crucial for communication in the body is called receptor.
(D) Molecule binding to the enzyme covalently is called poison. Thus, the correct match is : A $\rightarrow \mathrm{R}, \mathrm{B} \rightarrow \mathrm{P}, \mathrm{C} \rightarrow \mathrm{Q}, \mathrm{D} \rightarrow \mathrm{S}$
