Question

Which of the following statements is incorrect about Golgi apparatus?

• A. It helps in the recycling of the plasma membrane, pitched off by pinocytosis and phagocytosis.
• B. Secretion is the main function of the Golgi complex.
• C. It helps in glycosylation and glycosidation of lipids and proteins.
• D. The Golgi body helps in animal cytokinesis.

Answer 1

The correct option is D

The Golgi body helps in animal cytokinesis.

The correct option is D.

Explanation of correct option:

1. The Golgi body also known as the Golgi apparatus refers to a cell organelle, which takes part in the packaging of lipid and protein molecules.
2. The last step of cell division, which divides the cellular organelles and cytoplasm of one cell into two is cytokinesis.
3. Cytokinesis in animal cells is attained when a contractile ring of the cell microtubules produces a cleavage furrow, which differentiates the cell membrane in half.
4. The Golgi body does not play any role in animal cytokinesis, however, it plays an essential part in the cytokinesis of plant cells.

Explanation of incorrect options:

Option A:

1. The proteins and lipids produced by the endoplasmic reticulum are transported for the biogenesis of plasma membranes by the process of phagocytosis and pinocytosis.
2. Pinocytosis refers to the ingestion of surrounding fluids, while phagocytosis involved the ingestion of a solid substance.

Option B:

1. One of the essential functions of the Golgi body is the secretion and transportation of proteins.

Option C:

1. The proteins and lipids produced by the endoplasmic reticulum are transported to the Golgi bodies for modifications like glycosidation and glycosylation.
2. The process of forming a glycoside is glycosidation, while the process that attaches a carbohydrate to a lipid or protein molecule is glycosylation.

Final answer: The Golgi apparatus does not help in animal cytokinesis.