Question

give reason for the following: (a)the cell is called the structure and function unit of life.(b)plant cell are more rigid than the animal cell.

Answer 1

(a) all the organs and the body parts are made up of the group of cells , this make human body , that's why it is called structure and function unit of life .

(b) plant cells are more rigid as they have inner and outer cell layer made of cellulose and lipids.

Answer 2

Answer:

(a) A cell is called as the fundamental structural and functional unit of life because they form the building blocks (bricks) of the main organs of organisms. The cells are the basic parts of all organs. These cells in group forms tissues that have specialized function and these tissues together form the organs.

It is functional unit of life because the cells carry out all the functions of body (physiological, biochemical. genetic and other functions).

(b) Plant cells are more rigid than the animal cells because they have a rigid cell wall as well as cell membrane as their outer cover