Question

Which cell organelle is abundantly found in white blood cells, secretory cells of liver, kidney, tadpoles tail and helps in degenerating action?

• A. Mitochondria
• B. Golgi body
• C. Lysosome
• D. Endoplasmic reticulum

Answer 1

The correct option is C

Lysosome

The correct option is C:

Explanation of the correct option:

1. Lysosomes are spherical-bag-like structures that are covered by a single unit membrane.
2. They are reported in all animal cells except that of mammalian RBC.
3. This organelle shows polymorphism because lysosomes have different physiological states.
4. The lysosome is a cell organelle that is abundantly found in white blood cells, secretory cells of the liver, kidney, and tadpoles tail and helps in degenerating action.

Functions of lysosomes:

1. Intracellular Digestion: Heterophagy (digestion of foreign materials received in a cell by phagocytosis) and autophagy (digestion of dead cell organelles) occur.
2. Extracellular digestion: Lysosomes of osteoclast (aged bone resorption) dissolve unwanted parts of the bone.
3. Autolysis: All lysosomes of a cell burst to dissolve the cell completely. These are also called suicidal bags.
4. The disappearance of larval organs during metamorphosis (eg. tail in frogs) is due to autolysis.

Explanation of the incorrect option:

Option A:

Mitochondria are the site of aerobic respiration and ATP production.

Option B:

Golgi bodies do not show polymorphic character.

Option D:

The endoplasmic reticulum provides mechanical support and helps in intercellular exchange.

Final answer: Lysosome cell organelle is abundantly found in white blood cells, secretory cells of the liver, kidney, and tadpoles tail and helps in degenerating action.