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

2 practice sets · Page 1 of 1

What is the function of the plasma membrane?

Produces energy

Stores genetic material

Regulates entry and exit of substances

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.

Which of these is a semi-permeable structure?

Cell wall

Ribosome

Cytoplasm

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.