Question

The function of caruncle is to

• A. Protect the radicle end of embryo.
• B. Check entry of pathogens through micropyle.
• C. Protect against mechanical injury.
• D. Absorb water and its inward transfer through micropyle.

Answer 1

Answer: (D)

Absorb water and its inward transfer through micropyle.

Caruncle is a white spongy bilobed outgrowth present near the narrow end of the castor seed. If partially covers the hilum (dark scar) and completely covers the micropyle (small pore). It absorbs water which percolates through the micropyle into the seed. So, the correct answer is 'Absorb water and its inward transfer through micropyle'.