Internal respiration is called a physico-chemical process.Why?

Fertilization is a physico-chemical process. Explain.

Cell respiration is a biochemical process. Say Yes or No.

In insects,inspiration is called a passive process while expiration an active process.Why?

Enzymes are biocatalysts. They catalyse biochemical reactions. In general they reduce activation energy of reactions. Many physico-chemical processess are enzyme mediate. Some examples of enzyme mediated reactions are given below. Tick the wrong entry:

Write'True ' or 'False': Respiration is a physical process and depends upon the principle of diffusion.

Does the internal energy of an ideal gas change in an isothermal process

The process of respiration is

Which acid is called the king of chemicals?

Which rocess is called fractionating process?