Question

2) GIVE REASON FOR THE FOLLOWING
a) cell is called structural and functional unit of body
please tell fast ​

Answer 1

Answer:

Cell is called the structural and functional unit of life because cell is the smallest unit of life that can funtion properly , and cell is also the smallest funtional unit of life no matter which plant or animal you take cell ..

Answer 2

Answer:

a) Cell is called structural and functional unit of life becasue all the living organisms are made up of cells and it provides structure to the organsims.

MORE TO KNOW -

• Study of cell is called cytology / cellular biology .

• It is the smallest unit of life .

• Unicellular organisms - Organsims which has only one cell in their body are callled unicellular

• Single cell perform all the activities needed to support life of an organism

• There is no divisiob of a labour

• Ex - Amoeba

• Multicellur organism - Organisms which has more than one cell in thier body are called multicellular organisms

• Specific cells performs a particular function

• Thier is a division of labour

• Ex - Animals

COMMON PARTS OF CELLS -

I) Cell membrane

ii) Cytoplasm

iii) Nucleus

• Cell membrane is the outermost part of the cell where all the exchanges takes place .

• It is semipermeable i.e it allows only selected material to pass through it.

• Cytoplasm is fluid where all the chemical reaction nessecary for life taken place

• Nucleus commands all the activity of the cells.

• It is separated from cytoplasm by nucleus membrane

• LIFE CYCLE -

Cells - Tissues ---organs---organ system organisms