Life Processes Class 10 Notes

What is Life Process?

The basic essential activities performed by an organism to sustain life on earth is called as Life Process. There are seven important life processes which are common to all plants, birds, and animals, which includes: Growth, Movement, Respiration, Transportation, Excretion, Reproduction, and Nutrition.

Criteria for life process

Growth– It is generally defined as an increase in the size, the number of cells, tissues and the whole organism. Growth is mainly classified into Primary and Secondary growth

Movement– All living organisms including animals and plants have the ability to move. Usually, animals move in search of food, shelter and to protect themselves from danger. Plants cannot move like animals, but they show some movements response to an environmental stimulus.

Respiration– All living organisms including animals and plants respire as they need energy to grow, move and repair the cells. Aerobic and Anaerobic are two types of respiration.

Excretion– It is the process of removing or eliminating metabolic waste from a body. Like animals and humans, plant do excretes during photosynthesis and transpiration process.

Reproduction- It is the biological process of giving birth to their young ones. There are two types of reproduction- Sexual and asexual reproduction. Every living organism in this planet earth reproduces for the continuity of the generations.

Nutrition– It is the process of taking in food and converting it into energy, which is used for growth and development. There are two types of nutrition – Autotrophic and Heterotrophic mode of nutrition.

Few Important Questions

  • What is locomotion?
  • Describe the process of Excretion in humans.
  • Explain in detail how plants prepare their food?
  • Give examples for Heterotrophic mode of nutrition.
  • Write the differences between Aerobic and Anaerobic respiration.

Learn more about life process from the topics given below:


Practise This Question

Which of the following statement is true for aldehydes and ketones?