Question

Which of the following is not a function of a vacuole?

• A. Storage
• B. Providing turgidity and rigidity to the cell
• C. Waste excretion
• D. Locomotion

Answer 1

The correct option is D

Locomotion

The correct option is option D.

Explanation for the correct option:
Option D:

1. A membrane-bound cell organelle known as a vacuole.
2. Animal cells typically have tiny vacuoles that aid in the sequestration of waste.
3. Vacuoles in plant cells aid in preserving the equilibrium of water.
4. A single vacuole may occasionally occupy the majority of a plant cell's inner volume.
5. It doesn't help the cell move around.
6. A membrane-bound structure called a vacuole is located in the cytoplasmic matrix of a cell.
7. Tonoplast refers to the membrane that encloses the vacuole.

Explanation for the incorrect options:
Option A:

1. Vacuoles hold the water and nutrients that a cell needs to survive.
2. Additionally, they serve to retain cell waste and guard against contamination.
3. As a result, it is a crucial organelle.

Option B:

1. The vacuole gives plant cells turgidity and stiffness.
2. The largest organelle in plant cells, the vacuole, expands in size and shape as a result of water entry, becoming rigid, and eventually the entire plant becomes turgid and rigid.
3. Food and waste are also contained in the vacuole.

Option C:

1. Cells of freshwater protozoa and algae that have contractile vacuoles.
2. These particular vacuoles aid in osmoregulation.
3. Through their diastole (expanding) and systole (collapsing) movements, they aid in osmoregulation as well as the excretion of outer waste items outside the cell.

Final answer: Locomotion is not a function of the vacuole.