Carbohydrates in the chyme are immediately acted by

Options

A. Gastric amylase
B. Pancreatic amylase
C. Amylase of bile
D. Disaccharidases of intestinal juice

Answer

To solve the question "Carbohydrates in the chyme are immediately acted by," we will analyze the options provided and understand the digestion process of carbohydrates in the digestive system.

### Step-by-Step Solution:

1. **Understanding Chyme**:
- Chyme is the semi-liquid mass of partially digested food that is expelled from the stomach into the small intestine (specifically the duodenum).

2. **Location of Digestion**:
- Once chyme enters the duodenum, it is mixed with bile and pancreatic juices.

3. **Role of Pancreatic Juice**:
- The pancreatic juice is secreted by the pancreas and contains various enzymes, including pancreatic amylase, which is crucial for carbohydrate digestion.

4. **Function of Pancreatic Amylase**:
- Pancreatic amylase specifically acts on starches (complex carbohydrates) in the chyme, breaking them down into simpler sugars like maltose and dextrins.

5. **Immediate Action on Carbohydrates**:
- Since pancreatic amylase is secreted into the duodenum immediately after chyme enters, it is the first enzyme to act on the carbohydrates present in the chyme.

6. **Conclusion**:
- Therefore, the correct answer to the question is **pancreatic amylase**.

### Final Answer:
Carbohydrates in the chyme are immediately acted upon by **pancreatic amylase**.

---