Question

Lysosomes are not helpful in which of the following?

• A. Osteogenesis
• B. Cellular digestion
• C. Metamorphosis in frog
• D. Lipogenesis

Answer 1

The correct option is D Lipogenesis

Lysosomes are single membrane bound vesicles filled with hydrolytic enzymes. Lysosomes are most abundant in phagocytic cells like WBS, chondroclasts (which digest cartilage), osteoclasts (which digest bones). Their presence in chondroclasts cells helps in replacement of cartilage with bone during osteogenesis. The hydrolytic enzymes of lysosomes take part in solubilisation or digestion of materials obtained from outside through pinocytosis or phagocytosis. Lysosomes are useful in metamorphosis in eating away larval organs, removal of obstructions, intracellular scavenging, fertilization etc. They do not perform any biosynthetic activity, hence, are not useful in lipogenesis. Lipids are synthesized in smooth endoplasmic reticulum and spherosomes.