Identify the pair that incorrectly matches the cell organelle with its function. Class 9

Identify the pair that incorrectly matches the cell organelle with its function. Class 9

Question 1.

Identify the pair that incorrectly matches the cell organelle with its function. Class 9

(i) Ribosome — Protein synthesis

(ii) SER — Lipid and cellulose synthesis

(iii) Lysosome — Digestion of foreign agents

Answer:

Option (ii) - SER - Lipid and cellulose synthesis is Incorrect.

Explanation:

1. Option (i): Ribosome - Protein synthesis ✓ Correct
2. Option (ii): SER - Lipid and cellulose synthesis ✗ Incorrect - SER synthesises lipids and hormones, NOT cellulose. Cellulose is a component of the cell wall, not made by the SER.
3. Option (iii): Lysosome - Digestion of foreign agents ✓ Correct - Lysosomes break down foreign materials and waste

Question 2.

What outcome do you expect, if all the mitochondria are removed from a eukaryotic cell? Class 9

Answer:

Mitochondria are called the “powerhouses of the cell” because they produce energy (ATP) needed for all cellular activities.

If all mitochondria are removed:

1. The cell will not be able to produce energy (ATP).
2. All life processes like movement, growth, and repair will stop.
3. Ultimately, the cell will die due to lack of energy.