All type of nurition

Types of Nutrition

1. Autotrophic nutrition

                 Mode of nutrition in which an organism prepares its own food is called autotrophic nutrition. E.g: Green plants, Euglena. they prepare their own food by photosynthesis.

2. Heterotrophic nutrition

            The mode of nutrition in which an organism depends on other organisms for food as they cannot prepare their own food is called heterotrophic nutrition.

Types of parasites

                1.Ectoparasites

                2.Endoparasites

* The plant Cuscuta depends on other plants for food. this is an example for parasitic mode of nutrition. Organisms like head louse, leech etc., are found attached to the outer surface of the body and get nourishment from the host. so,these are called ectoparasites

*Round worm lives inside the body (gut) and derives food form the intestine. So it is an endoparasite.

Saprophytes

              In saprophytic nutrition, the organism decomposes the dead plant and animal substances and converts them into simple molecules and absorbs them through their body wall.

3. Special type of nutrition

              Plant like Nepenthes, Drosera, and Utricularia are green in colour and are autotrophic. Since they are found in nitrogen deficient soil, they trap insects and kill them to get nitrogen from them. So they are called insectivorous plants.