Plasma Membrane in Class 9 Science : Practice MCQ Questions & Answers with Explanations

2 practice sets · Page 1 of 1

1.

What is the function of the plasma membrane?

A

Produces energy

B

Stores genetic material

C

Regulates entry and exit of substances

D

Provides shape to the cell

View Answer

Correct Answer: C — Regulates entry and exit of substances

Explanation:

The plasma membrane controls the movement of substances into and out of the cell.

2.

Which of these is a semi-permeable structure?

A

Cell wall

B

Ribosome

C

Cytoplasm

D

Plasma membrane

View Answer

Correct Answer: D — Plasma membrane

Explanation:

The plasma membrane is semi-permeable and regulates the movement of substances into and out of the cell.