Answer:
Lysosome
is membrane bound sac filled with powerful digestive enzyme. (1)
Functions of Cells
(i) Lysosomes are a kind of waste disposal system of cell.
(ii) During starvation, lysosomes act on their own cellular
organelles and digest them. This results in cell death. Thus, lysosomes act as
suicidal bags.
(iii) They help in the destruction of other foreign food
materials.
(iv) They work in defence against bacteria and viruses.
(2)
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