Question

Q1. Who discovered Cell ?

Answer 1

Explanation:

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$\textbf{Robert Hooke}$ first discovered the cell in 1665.

He prepared a thin slice of cork and observed it under self made microscope. He saw some box like structures which he named as cell.

→ Cell is the structural and functional unit of living organisms.

All living organisms are made up of cell. That's why cell is known as structural unit of life.

A single cell can perform all life functions with the help of it's components. Therefore it is known as functional unit of life.

→ Anton Von Leeuwenhoek 1st saw the living cell and also 1st describe the living cell.

→ It contain hereditary information due to presence of nucleus or nucleoid.

→ Cells can replicate independently.

→ All organisms are made up of cells. Organisms with single cells are known as unicellular organisms. And organisms with multiple cells are known as multicellular organisms.

→ Cells size ranges from 1 - 100 μm.

→ Mycoplasmas, is the shortest cell (0.3 μm) and ostrich egg and nerve cells are the largest cell.

→ Cells are in different shapes. Their shape vary with their function. They may be cuboid, thread like etc.

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