Browsed by
Tag: Cell

The Fundamental Unit of Life Notes CBSE Class 9 Ch 5

The Fundamental Unit of Life Notes CBSE Class 9 Ch 5

Cell Cell (Discovered by Robert Hooke) is called as the structural and functional unit of life because All living organisms are made up of cells. All the activities performed by a living organism are sum total of activities performed by its cells. Examples: Nerve Cell, Sperm, Ovum, Fat cell, Bone cell, etc. Cell Theory (By Schleiden & Schwann) All the plants and animals are composed of cells. All cells arise from pre-existing cells. Plasma Membrane (Cell Membrane) (Selectively Permeable Membrane)…

Read More Read More