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BIOLOGY

JAMB 2012 - Question 3

Biology 2012 JAMB Past Questions - Question 3: The part labelled IV is the

Use the diagram to answer questions 3

The part labelled IV is the

A: mitochondrion

B: cell wall

C: endoplasmic reticulum

D: nucleus

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Correct Answer

Explanation

This is endoplasmic reticulum, it is a complex system of double membrane bound vesicles or channels and distributed throughout the cytoplasm. The membrane of the endoplasmic reticulum is usually continuous with the nuclear membrane and cell membrane. Endoplasmic reticulum moves materials (proteins) from one part of the cell to another. Cell wall is found 7. in plant cells and is surrounded by the plasma membrane. It provides mechanical support and protection to the cell.