a) Monocot seeds are those that contain only one seed leaf inside their seed coat. A diagram of a sectional view of monocot seed is as follows:
b) The functions of coleoptile, coleorhiza and endosperm are as follows:
• Coleoptile: The plumule is enclosed in sheaths called coleoptile. It protects the plumule while it emerges from the soil. It has a terminal pore through which the first leaf emerges.
• Coleorhiza: The radicle is enclosed in sheath called coleorhiza. It is a protective covering.
• Endosperm: It surrounds the embryo and provides nutrition. It is mostly triploid.
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