Photosynthesis

Every living organism requires food to fulfill the requirement of energy for their various activities. Green plants are autotrophic in nature. So, they synthesize their food by a very important process called photosynthesis. The term ‘photosynthesis’ consists of two...

Parasitic Nutrition

In this type of nutrition, the organisms (called parasites) depend on the body of other living organisms (called their host) for getting their food. Many viruses, bacteria, fungi and animals have this mode of nutrition. The organisms which depend on other living...

Saprophytic Nutrition

In saprophytic nutrition the organisms obtain their food from dead and decaying organic matter of dead plants, dead animals and other decomposing organic matter. And the organisms which obtain their food from dead and decaying organic matter of dead plants, dead...

Herbivores, Carnivores and Omnivores

The organisms having holozoic nutrition are further classified in three categories. These are: Carnivores Herbivores and Omnivore   Carnivores The organisms which eat other animals or meat only are called carnivores. For example, lion, bear, snake, crocodile, lizard,...

Holozoic nutrition

A heterotrophic organism can obtain its food from other organisms in following three ways: Holozoic nutrition Saprophytic nutrition Parasitic nutrition Holozoic nutrition Holozoic nutrition takes place in those organisms which take solid or liquid food through the...

Heterotrophic Nutrition

The term ‘heterotroph’ consists of two words ‘hetero’ and ‘troph’. ‘Hetero’ means ‘others’ and ‘troph’ means ‘nutrition’. So, in heterotrophic nutrition the organisms cannot make their own food from carbon dioxide, water and...