NUTRITION IN PARAMECIUM

NUTRITION IN PARAMECIUM

Posted on 19/09/2015 by Administrator

Paramecium is a tiny unicellular organism found in water. It follows holozoic mode of nutrition.

1. Ingestion:

Paramecium engulfs food by the use of cilia. Cilia is a hair like structure present on surface on body of paramecium. Food is ingested by cilia through oral groove into gullet. The food is ingested with a little surrounding water to form a food vacuole

2. Digestion:

In Paramecium, food is digested in food vacuole by the digestive enzymes released by cytoplasm. Digestion in Paramecium is termed as “intracellular digestion”.

3. Absorption:

The digested food present in the food vacuole of Paramecium is absorbed directly into the cytoplasm by diffusion. After absorption of food, the food vacuole shrinks.

4. Assimilation:

The absorbed food nutrients is stored and utilised later for synthesis of energy.

5. Egestion:

The undigested food is expelled out through anal pore.