Tips and Tricks on Cellular Level of Organisation


Johannes Purkinje (8139) called the jelly like substance Protoplasm. 'Protoplasm is physical basis of life' was stated by Huxley.

A large cell has a proportionately smaller surface and a higher volume surface ratio than a smaller cell. That is why, by and large, the cells are tiny, cells are small in volume to maintain a large surface area to volume ratio. Active cells have high nucleocytoplasmic ratio.

As a person ages the mitochondria decrease in number and lysosomes increase in number.

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