A) only extracellular digestion
B) only intracellular digestion
C) Both [a] and [d]
D) None of the above
Correct Answer: C
Solution :
Functions of lysosome- (i) Lysosomes works in extracellular digestion. It acts as the digestive system of the cells, enabling it to digest the proteins and other substances taken by endocytosis. Digestive particles are covered by a membrane and this structure is called phagosome. Lysosomes also works as intracellular digestion. Where there is deficiency of food materials, lysosomes digest the carbohydrates, proteins and lipids present in cytoplasm. Lysosome functions as trigger of cell division or initiate cell division by digesting represser molecules. (ii) Lysosomes of sperms provide enzyme for breaking limiting membrane of egg, eg, hyaluronidase enzyme.
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