Match the columns and find the correct combination 
`{:(,(a),"Ptyalin ",(i),"Lipids"),(,(b),"Pepsin",(ii),"Starch"),(,(c),"Steapsin",(iii),"DNA"),(,(d),"Nuclease",(iv),"Protien"):}`

Options

A. a-I,b-iii,c-ii,d-iv
B. a-I,b-iv,c-iii,d-ii
C. a-ii,b-iv,c-I,d-iii
D. a-ii,b-iii,c-I,d-iv

Answer

To solve the question of matching the enzymes with their respective substrates, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Enzymes**: We have four enzymes to match:
- (a) Ptyalin
- (b) Pepsin
- (c) Steapsin
- (d) Nuclease

2. **Identify the Substrates**: The substrates provided are:
- (i) Lipids
- (ii) Starch
- (iii) DNA
- (iv) Protein

3. **Match Ptyalin**:
- Ptyalin is known as a starch-splitting enzyme found in saliva. It breaks down starch into simpler sugars.
- Therefore, we match (a) Ptyalin with (ii) Starch.

4. **Match Pepsin**:
- Pepsin is a gastric enzyme that acts on proteins. It breaks down proteins into smaller peptides and amino acids.
- Thus, we match (b) Pepsin with (iv) Protein.

5. **Match Steapsin**:
- Steapsin, also known as pancreatic lipase, is an enzyme that digests lipids (fats).
- Hence, we match (c) Steapsin with (i) Lipids.

6. **Match Nuclease**:
- Nuclease is an enzyme that acts on nucleic acids, specifically DNA and RNA, breaking them down into nucleotides.
- Therefore, we match (d) Nuclease with (iii) DNA.

7. **Final Combinations**:
- (a) Ptyalin → (ii) Starch
- (b) Pepsin → (iv) Protein
- (c) Steapsin → (i) Lipids
- (d) Nuclease → (iii) DNA

### Conclusion:
The correct combinations are:
- (a) with (ii)
- (b) with (iv)
- (c) with (i)
- (d) with (iii)