Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

Consider the following statements: Vitamin A deficiency in humans can lead to 1. atrophy of epithelial cells. 2. damage to intestinal mucosa. 3. defects in the dentine of teeth. Which of the statements given is/are correct?
Options
A 1 only
B 1 and 2
C 2 and 3
D 1, 2 and 3
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

All three statements are correct. Vitamin A (retinol) is essential for maintaining epithelial tissues. Deficiency leads to atrophy and keratinization of epithelial cells (1), damage to the intestinal mucosa affecting absorption (2), and defects in dentine formation in teeth (3). It also causes night blindness and other ocular issues.

Hint

Vitamin A is crucial for epithelial integrity, mucous membrane health, and tooth development.

Question Info