Why is the cell called the structural and functional unit of l... - Science

Question

Why is the cell called the structural and functional unit of life?

Answer

The cell is called the structural and functional unit of life because:

Structural Unit: All living organisms are made up of cells. They provide structure and shape to the body, just like bricks in a building.
Functional Unit: A single cell is capable of performing all basic life functions necessary for survival, such as respiration, nutrition, excretion, and metabolism.

Who discovered cells, and how?

How do substances like CO₂ and water move in and out of the cell? Discuss.

Why is the plasma membrane called a selectively permeable membrane?

Fill in the gaps in the following table illustrating differences between prokaryotic and eukaryotic cells.

Can you name the two organelles we have studied that contain their own genetic material?

If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?

Why are lysosomes known as suicide bags?

Where are proteins synthesised inside the cell?

Make a comparison and write down ways in which plant cells are different from animal cells.

How is a prokaryotic cell different from a eukaryotic cell?

Subject: Science
Class: class 9
Chapter 5: The Fundamental Unit of Life
Medium: English Medium