Match the columns
`{:(,,"Column-I",,Column-II ),(,"a","saliva","p","Disaccharidases"),(,"b","Gastric","q","Trypsin"),(,"c","Pancreatic","r","Ptyalin"),(,"b","Intestinal","s","Pepsin"),(,"","","t","Cellulase"):}`

Options

A. a-r,b-t,c-p,d-q
B. a-s,b-r,c-p,d-t
C. a-r,b-s,c-p,d-t
D. a-r,b-s,c-q,d-p

Answer

To solve the matching question between Column-I and Column-II, we will analyze each item in Column-I and find the corresponding item in Column-II based on the functions and characteristics of the substances listed.

### Step-by-Step Solution:

1. **Identify the first item in Column-I: Saliva (a)**
- Saliva contains the enzyme **ptyalin**, which is also known as **salivary amylase**. This enzyme helps in the digestion of starch in the mouth.
- **Match:** Saliva (a) → Ptyalin (r)

2. **Identify the second item in Column-I: Gastric (b)**
- The gastric juice contains the enzyme **pepsin**, which is responsible for protein digestion. Pepsin is secreted as an inactive form called pepsinogen and is activated by hydrochloric acid (HCl).
- **Match:** Gastric (b) → Pepsin (s)

3. **Identify the third item in Column-I: Pancreatic (c)**
- Pancreatic juice contains the enzyme **trypsin**, which continues the digestion of proteins into smaller peptides and amino acids after they leave the stomach.
- **Match:** Pancreatic (c) → Trypsin (q)

4. **Identify the fourth item in Column-I: Intestinal (d)**
- Intestinal juice contains **disaccharidases**, which are enzymes that break down disaccharides into monosaccharides. Examples include maltase, lactase, and sucrase.
- **Match:** Intestinal (d) → Disaccharidases (p)

### Final Matches:
- a → r (Saliva → Ptyalin)
- b → s (Gastric → Pepsin)
- c → q (Pancreatic → Trypsin)
- d → p (Intestinal → Disaccharidases)

### Answer:
- a → r
- b → s
- c → q
- d → p