Question

Define life processes. Name the essential life processes for the survival of a living organism.

Answer 1

Definition

Life processes is defined as the processes involving various activities and functions which are essential for the growth, development and survival of a living organism.

Essential life processes

The life processes essential for the survival of a living organism are:

• Nutrition: It is the process by which a living organism obtains energy and nutrients for development, growth and repair.
• Respiration: It is the process by which energy is released through the breakdown of glucose.
• Transportation: It is the process by which the food obtained and the oxygen obtained are distributed throughout the body.
• Excretion: It is the expulsion of all unwanted and toxic substances from the body.