1. Lipids (phospholipids, cholesterol), proteins and small quantity of carbohydrates (sugars and polysaccharides).

    Lipids (phospholipids, cholesterol), proteins and small quantity of carbohydrates (sugars and polysaccharides).

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  2. Protoplasm or living matter is a complex semifluid mass of various biochemical that are often compartmentalized to perform different functions of life.

    Protoplasm or living matter is a complex semifluid mass of various biochemical that are often compartmentalized to perform different functions of life.

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  3. Cell is a unit mass of protoplasm which is covered by the plasma membrane and is capable of performing different functions of life.

    Cell is a unit mass of protoplasm which is covered by the plasma membrane and is capable of performing different functions of life.

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  4. Plasma membrane or cell membrane is a thin delicate living elastic membranous covering of the cell that separates the cell contents from the external environment

    Plasma membrane or cell membrane is a thin delicate living elastic membranous covering of the cell that separates the cell contents from the external environment

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