Biology
Draw a neat diagram of the 'longitudinal section of a maize grain' and label its seven important parts. Answer the following questions :
- Name the structure which divides the embryonic and endospermic region of the grain.
- Among the parts labelled by you above, which one of them is protienaceous in nature ?
- Name the food component which is stored in the endosperm.
- Mention the part of the seed which develops into the root.
- Why do we call it as a 'grain' and not as a seed or fruit ?
Flower
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Answer
Diagram of Longitudinal section of a maize grain:
The epithilial layer divides the embryonic and endospermic region of the grain.
Aleurone layer is protinaceous in nature.
Endosperm stores food in the form of starch.
Radicle is the part of the seed which develops into the root.
We call it 'maize grain' as the seed coat is fused together with the pericarp, making it indistinguishable.
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