CBSE Class 9 Cell Biology Quiz

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Questions and Answers

What is the basic unit of life?

Cell

Which organelle is known as the powerhouse of the cell?

Mitochondria

What is the function of the cell membrane?

Regulating the passage of substances into and out of the cell

Study Notes

Cellular Biology

  • The basic unit of life is the cell.

Cellular Organelles

  • The mitochondria is known as the powerhouse of the cell due to its role in generating energy for the cell through cellular respiration.

Cell Membrane

  • The cell membrane, also known as the plasma membrane, is a selectively permeable membrane that regulates the movement of substances in and out of the cell, maintaining cellular homeostasis and protecting the cell from its environment.

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