Question

Differentiate between pea seed and castor seed.

Hint:

Most dicots have non-endospermic seeds (Pea, Bean, Gram), but Castor is an exception as it is a dicot with an endosperm.

Answer 1

Step 1: Understanding the Concept:
The presence or absence of endosperm in a mature seed is a key distinguishing feature between different plant species.
Step 2: Detailed Explanation:
Pea Seed: During embryo development, the endosperm is completely consumed. Such seeds are called non-albuminous or non-endospermic. Food is stored in the cotyledons.
Castor Seed: The endosperm is not completely consumed during embryo development and persists in the mature seed. Such seeds are called albuminous or endospermic.
Step 3: Final Answer:
The main difference is that pea seeds lack endosperm at maturity, while castor seeds retain it.