Question

Write a short note how nutririon occur in ameoba

Answer 1

They mostly feed on diatoms, algae, microscopic organisms and other dead organic matter present in water. The mode of nutrition in amoeba is Holozoic. Nutrition in an amoeba occurs through a process called phagocytosis where the entire organism pretty much engulfs the food it plans on eating up.

Answer 2

• The mode of nutrition in Amoeba is holozoic.
• In Amoeba the process of obtaining food is called Phagocytosis.
• When Amoeba take liquid substance it is called Pinocytosis.

The various process are as follows:

1. Ingestion: Amoeba intake food particles by forming temporary finger like projection known as pseudopodia around them.

• Food is encaptured along with lysosome into a bag called food vocuole.

2. Digestion: In Amoeba food is digested in food vocuoles

by digestive enzymes.

3. Absorption: The digested food found in food vocuoles

is absorbed directly into cytoplasm by diffusion.

4. Assimilation: A part of the food absorbed in cell is used

to obtain energy through respiration. The remaining part

is used in growth of Amoeba.

5. Egestion: The undigested food remains in the food

vocuole is thrown out of the body by rupturing cell

membranes.