Describe the process of nutrition found in amoeba?

Question

Answer

Since amoeba is holozoic so, in amoeba, nutrition takes place in 5 steps:-
i.. INGESTION:- amoeba ingest their food by using pseudopodia.

ii.. DIGESTION:- digestion takes place in food vacule with the help of digestive enzymes.

iii.. ABSORPTION:- the digested food is absorbed in cytoplasm of amoeba by the process of diffusion.

iv.. ASSIMILATION:- the absorbed food is used to get energy and the growth of amoeba.

v.. EGESTION:- the undigested food thrown out by breaking cell membrane at any place in amoeba.

Thank you... :-)

Answer

The mode of nutrition in Amoeba is holozoic. The various steps involved in the process of nutrition are: Ingestion: Amoeba ingests food with the help of its finger-like extensions, called pseudopodia. When a food particle approaches Amoeba, it forms pseudopodia around it and forms a food vacuole inside the Amoeba......

Answer

The various steps involved in the process of nutrition are:

Ingestion: Amoeba ingests food with the help of its finger-like extensions, called pseudopodia. When a food particle approaches Amoeba, it forms pseudopodia around it and forms a food vacuole inside the Amoeba.

Digestion: Various enzymes from the cytoplasm enter into the food vacuole and break them down into simple soluble molecules.

Absorption: The simple soluble food is absorbed by cytoplasm of Amoeba from food vacuoles through the process of diffusion.

Assimilation: Amoeba cell obtains energy from the absorbed food through respiration. This energy is utilised by Amoeba for its growth and repair of the body.

Egestion: When a considerable amount of undigested food gets collected inside Amoeba, its cell membrane ruptures and throws out the undigested food.

That's all

Answer

Process of Nutrition in Amoeba:

Amoeba is a single-celled organism that obtains its nutrition through a process called phagocytosis. Phagocytosis is the engulfment of solid particles by the cell membrane to form a food vacuole. Let's explore the process of nutrition in amoeba in detail:

1. Encountering Food:
Amoebas are heterotrophic organisms, meaning they cannot produce their own food. They feed on various microscopic organisms, such as bacteria, algae, and other small protozoans, that they encounter in their environment.

2. Extension of Pseudopodia:
When an amoeba detects a potential food source, it extends finger-like projections called pseudopodia towards the prey. These pseudopodia are temporary extensions of the cell membrane and cytoplasm that help in capturing the food.

3. Engulfment of Food:
As the pseudopodia surround the prey, they fuse together, enclosing the food particle within a membrane-bound structure called a food vacuole. The food vacuole is formed by the cell membrane folding inward and pinching off to create a separate compartment within the cell.

4. Digestion:
Once the food is enclosed within the food vacuole, the amoeba secretes digestive enzymes into the vacuole. These enzymes break down the food into smaller molecules that can be absorbed and utilized by the amoeba for energy and growth.

5. Absorption of Nutrients:
The smaller molecules resulting from digestion, such as glucose and amino acids, diffuse into the cytoplasm of the amoeba from the food vacuole. The cell membrane of the amoeba is permeable to these molecules, allowing their absorption.

6. Waste Removal:
After absorbing the nutrients, the undigested waste materials remain in the food vacuole. The amoeba eliminates this waste by exocytosis, where the food vacuole fuses with the cell membrane, expelling the waste material from the cell.

7. Utilization of Nutrients:
The absorbed nutrients are utilized by the amoeba for various metabolic processes, including energy production, growth, and repair of cell structures. These nutrients provide the necessary building blocks for the amoeba to carry out its life functions.

In conclusion, the nutrition process in amoeba involves the detection and engulfment of food through pseudopodia, digestion of the food within a food vacuole, absorption of nutrients into the cytoplasm, waste removal through exocytosis, and utilization of the absorbed nutrients for energy and growth. This process ensures the survival and growth of the amoeba.

Answer

The complete process of feeding and digestion in amoeba. An Amoeba is a shapeless, single celled organism. ... The food vacuole contains digestive enzymes which break down the food into nutrients and undigested waste. The nutrients from the food are directly absorbed by the body of the Amoeba, the Cytoplasm.

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