GENERAL KNOWLEDGE

GK

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Seed coat is not thin, membranous in
A
Gram
B
Groundnut
C
Coconut
D
Maize
Explanation: 

Detailed explanation-1: -The coconut is a drupe or a fleshy fruit having hard lignified stone derived from the wall of the ovary. The seed coat is thus not thin, but membranous and tough.

Detailed explanation-2: -In coconut brown covering (thin layer) adherent to the kernel around the endosperm is seed coat. A seed coat protects the internal parts of the seed from fungi, bacteria and insects and prevents water loss. The seed coat must split open before a new plant may emerge.

Detailed explanation-3: -A typical non-endospermic dicot seed is made up of seed coat and embryo. The seed coat consists of two layers that may be united or free, the outer layer, which is hard and made of thick walled cells is called testa and the inner thin membranous layer is called tegmen.

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