Match the column
`{:("Substrate", "Enzyme"),("(A) Ribonucleotide", "(i) Chitinase"),("(B) Chitin", "(ii) Cellulase"),("(C) Cellulose", "(iii) Ribonuclease"):}`

Options

A. A – i, B – ii, C – iii
B. A – iii, B – i, C – ii
C. A – iii, B – ii, C – i
D. A – ii, B –i, C – iii

Answer

To solve the matching question, we will analyze each substrate and identify the corresponding enzyme from the options provided.

### Step-by-Step Solution:

1. **Identify the Substrates and Enzymes**:
- Substrates:
- (A) Ribonucleotide
- (B) Chitin
- (C) Cellulose
- Enzymes:
- (i) Chitinase
- (ii) Cellulase
- (iii) Ribonuclease

2. **Match Ribonucleotide**:
- Ribonucleotides are the building blocks of RNA. The enzyme that cleaves RNA is called **Ribonuclease**.
- Therefore, (A) Ribonucleotide matches with (iii) Ribonuclease.

3. **Match Chitin**:
- Chitin is a structural component found in the exoskeleton of arthropods. The enzyme that breaks down chitin is known as **Chitinase**.
- Thus, (B) Chitin matches with (i) Chitinase.

4. **Match Cellulose**:
- Cellulose is a polysaccharide that forms the cell wall of plants. The enzyme that breaks down cellulose is called **Cellulase**.
- Therefore, (C) Cellulose matches with (ii) Cellulase.

5. **Final Matching**:
- (A) Ribonucleotide → (iii) Ribonuclease
- (B) Chitin → (i) Chitinase
- (C) Cellulose → (ii) Cellulase

### Conclusion:
The correct matches are:
- (A) → (iii)
- (B) → (i)
- (C) → (ii)

Thus, the answer is the second option that aligns with these matches.