Find out the correct statement

Options

A. Pepsin gets destroyed below the freezing point
B. Alpha amylase becomes immediately inactive on reaching stomach
C. Fats are effectively absorbed in stomach
D. Pancreatic enzymes are secreted under the influence of CCK

Answer

To solve the question of finding the correct statement among the given options, we will analyze each statement step by step:

### Step 1: Analyze the first statement
**Statement:** Pepsin gets destroyed below freezing point.

**Analysis:** Pepsin is an enzyme that is involved in protein digestion in the stomach. It does not get destroyed below freezing point; rather, it becomes inactivated. This means that while its activity ceases, the enzyme itself is not destroyed.

**Conclusion:** This statement is incorrect.

**Hint:** Remember that enzymes can become inactive without being destroyed, especially under extreme conditions like freezing.

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### Step 2: Analyze the second statement
**Statement:** Alpha amylase becomes immediately inactive on reaching the stomach.

**Analysis:** Alpha amylase is an enzyme that breaks down starch into sugars and has an optimal pH of around 6.8, which is close to neutral. The stomach, however, has a very acidic environment with a pH of about 1 to 2 due to hydrochloric acid (HCl). This acidic environment is too harsh for alpha amylase, causing it to become inactive immediately upon entering the stomach.

**Conclusion:** This statement is correct.

**Hint:** Consider the pH levels of enzymes and how they affect enzyme activity; drastic changes in pH can lead to inactivation.

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### Step 3: Analyze the third statement
**Statement:** Fats are effectively absorbed in the stomach.

**Analysis:** The stomach is not the primary site for fat absorption. While some digestion of fats begins in the stomach, the effective absorption of fats occurs mainly in the small intestine, where bile acids emulsify fats, making them easier to digest and absorb. Therefore, fats are not effectively absorbed in the stomach.

**Conclusion:** This statement is incorrect.

**Hint:** Think about where the majority of nutrient absorption occurs in the digestive system.

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### Step 4: Analyze the fourth statement
**Statement:** Pancreatic enzymes are secreted under the influence of CCK.

**Analysis:** Cholecystokinin (CCK) is a hormone that stimulates the secretion of pancreatic enzymes and bile from the gallbladder. It plays a crucial role in the digestion of fats and proteins in the small intestine. Thus, this statement is accurate regarding the hormonal regulation of pancreatic secretions.

**Conclusion:** This statement is correct.

**Hint:** Hormones often regulate digestive processes; consider the role of CCK in digestion.

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### Final Conclusion
After analyzing all four statements, we find that the second statement ("Alpha amylase becomes immediately inactive on reaching the stomach") is the correct one. The third statement about fats and the first statement about pepsin are incorrect, and while the fourth statement about pancreatic enzymes is true, it was not the focus of the question to find the single correct statement.

### Correct Answer:
The correct statement is: **Alpha amylase becomes immediately inactive on reaching the stomach.**

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