Explain the structure of unfertilised ovum brainly
Answers
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Explanation:
Despite its large size - it's the only animal cell you can see with the naked eye and is as big as the period at the end of this sentence - most of the egg cell is padding, layers of which protect the valuable information in its nucleus.
Most of the inner structures of the egg cell are the same as those in any other animal cell, but they are given special names. For example, the nucleus is referred to as the 'germinal vesicle' and the nucleolus as the 'germinal spot.'
The cytoplasm of the ovum is called the 'ooplasm' (meaning 'egg material') or 'vitellus.' As if two names were not enough, it is also known as the 'yolk' of the egg. This can be a bit confusing when you think of one of the most common, visible and edible ovum around the chicken egg, in which the yolk looks like the nucleus of the cell but actually contains most of the egg cell. The yolk supplies nutrients to the growing embryo, a smaller amount in mammals compared to that of egg-laying animals.