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Question : (a) What is meant by cyclosis or cytoplasmic streaming ? Write two functions of it. (b) What do you mean by phagocytosis and pinocytosis ?

Answer»

Solution :(a) AUTONOMIC movement of the matrix of cytoplasm is called CYCLOSIS or cytoplasmic streaming. The two functions of cyclosis are :
(i) transport of substances from one part of the cell to another.
(ii) CELLULAR movement as in WBCs.
(b) Phagocytosis is the intake of solid PARTICLES by a cell. it is celled cell eating.
Pinocytosis. It is the nonspecific intake of a tiny droplet of extracellular fluid by a cell cannot otherwise pass through the cell membrane.


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