Question

The cotyledons in some non-endospermic seeds act as a food storage organ and in others they act as ______.

• A. perisperm
• B. photosynthetic organs
• C. pericarp
• D. haustorium

Hint:

In epigeal germination the cotyledons come above the soil and turn green.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
In non-endospermic seeds the endosperm is used up during embryo development. In pea and gram, the fleshy cotyledons store food.

Step 2: Other role
In some seeds with epigeal germination (such as bean and castor) the cotyledons come out of the soil and become green. They then make food by photosynthesis until the first leaves form.

Step 3: Why the other options fail
Perisperm is the leftover nucellus, pericarp is the fruit wall, and a haustorium is an absorbing organ. None of these is a role of the cotyledon here.

Final Answer:
In some seeds the cotyledons act as photosynthetic organs. \[ \boxed{\text{(B) }\text{photosynthetic organs}} \]