Question

Explain the nutrition in Amoeba and Paramoecium is both exhibit holozoic nutrition 

Answer 1

Nutrition in Amoeba:

Amoeba feeds by holozoic mode of nutrition.

It engulfs the food particle using pseudopodia, the process is called phagocytosis.

The engulfed food gets enclosed in a food vacuole.

As the food vacuole passes through the cytoplasm, digestion, absorption and assimilation take place.

When the food vacuole opens to outside, egestion of undigested food takes place. 

 

 

Nutrition in Paramoecium

Paramoecium also exhibits holozoic nutrition.

However, they have cilia that help them to engulf the food through the oral groove.

A food vacuole is created enclosing the food.

It moves through the cytoplasm, the process is called cyclosis.

Food digested in the food vacuole is absorbed by the cytoplasm.

Undigested food is given out to a tiny pore called anal pore or cytopyge.

Paramoecium also exhibits holozoic nutrition.

Amoeba feeds by holozoic mode of nutrition.