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CELL STRUCTURE

It is structural and functional unit of all living organisms. It is composed of cytoplasm and nucleus enclosed by cell membrane.cell are of different shapes and sizes. It consist of cytoplasm and Nucleus<br>

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CELL STRUCTURE

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  1. CELLIt is structural and functional unit of all living organisms. It is composed of cytoplasm and nuleus enclosed by cell membrane.cell are of different shapes and sizes. It consist of cytoplasm and nucleus.

  2. Cell membrane:This is outermost boundary of an animal cell. It is also called plasma membrane.It is composed of lipids and proteins (lipoproteins).A cell membrane is semi-permeable.Cell membrane surround the cytoplasm and nuleus in all type of cells. In plants and becteria, cell membrane itself is surrounded by a cell wall.

  3. CYTOPLASM: The protoplasm outside nucleus is called cytoplasm. The cytoplasm exhibits active streaming movements around the inner surface of the cell. This movement is known as cyclosis. It is composed of organic compound such as proteins, carbohydrates, lipids (Fats), enzymes and some inorganic compound e.g water and salts. Some important cytoplasmic organelles found in eukaryotic cells are as under. 1: Endoplasmic reticulum 2: Golgi complex 3: Mitochondria 4: Plastids (in case of plant cells). 5: Centrioles 6: Ribosomes. 7: Vacuoles. Source: https://learnonlineeducation2020.blogspot.com/

  4. NUCLEUSIt was discovered by Robert Brown in 1831. It may be spherical or irregular in shape.In animal cell it is usually present in the centre but in plant cell due to the presence of a large vacuole, itis pushed towards the cell membrane. Nucleus is surrounded by a double membrane called the nuclear membrane. Nucleus is filled with a gel like substance called nucleoplasm.

  5. ABOUT US:NAME : KOMAL SINGHPH NO : 7340427476E.MAIL : komalgurindersingh@gmail.com

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