Chapter 4: Cell - Structure and Functions

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Cell โ€“ Structure and Functions


Write short notes on the following:

(a) Cytoplasm

(b) Nucleus of a cell


(a) Cytoplasm - The jelly-like structure present between the cell membrane and nucleus is called cytoplasm. The cytoplasm contains smaller components called organelles. Some examples of cell organelles are mitochondria, Golgi bodies, ribosomes, endoplasmic reticulum, etc.

(b) Nucleus – Nucleus is a large, spherical organelle present in all the cells (in the center of a cell). It is an important component of the living cell. The nucleus is separated from the cytoplasm by a membrane called a nuclear membrane. Like plasma membrane, the nuclear membrane is also porous and allows the movements of substances between the cytoplasm and inside the nucleus.

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