Question

One fictions of cotyledons, endosperm.

Answer 1

cotyledons store food for developing plant.
The endosperm is the tissue produced inside the seeds of most of the flowering plantsfollowing fertilization.

Answer 2

cotyledons store food for the growing plants till it is capable of preparing its own food . this happens in a dicot seed.

endosperm' s function too is same but is is in a monocot seed.
hope the answer is correct