Engulfing of food materials or foreign bodies by cells like Amoeba is calleda)diffusionb)endocytosisc)osmosisd)plasmolysisCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

B) endocytosis

Answer

Endocytosis is a process by which a cell is able to engulf food and do other activities within the cell. for eg. ameoba is able to engulf it's food by the process of endocytosis.

Answer

According to the lsn , the fundamental unit of life , there is a definition that the flexibility of lysosomes can also help in engulfing food

Answer

Endocytosis

Endocytosis is a cellular process by which cells engulf and internalize materials from their external environment. It is the process through which cells take in substances such as nutrients, molecules, and even whole cells. One of the most well-known examples of endocytosis is the engulfing of food materials or foreign bodies by cells like Amoeba.

Types of Endocytosis

There are different types of endocytosis, including phagocytosis, pinocytosis, and receptor-mediated endocytosis.

1. Phagocytosis: This is the type of endocytosis where cells engulf large solid particles such as food materials or foreign bodies. It is commonly observed in single-celled organisms like Amoeba, which use pseudopodia to surround and engulf their prey.

2. Pinocytosis: Pinocytosis is the process in which cells take in small liquid droplets or dissolved substances from their surrounding environment. This occurs through the formation of small vesicles that fuse with the cell membrane and bring the captured material into the cell.

3. Receptor-mediated endocytosis: This type of endocytosis involves the uptake of specific molecules that bind to receptors on the cell surface. The receptors recognize and bind to the targeted molecules, leading to the formation of vesicles that are internalized by the cell.

Process of Endocytosis

The process of endocytosis involves several steps:

1. Recognition: The cell recognizes the specific material to be internalized, such as food particles or foreign bodies.

2. Engulfment: The cell extends its plasma membrane around the material, forming a pocket or vesicle.

3. Internalization: The pocket pinches off from the plasma membrane, becoming an intracellular vesicle that contains the engulfed material.

4. Fusion: The vesicle fuses with other cellular compartments, such as endosomes or lysosomes, which contain enzymes for digestion.

5. Digestion: The engulfed material is broken down and digested by the enzymes present in the cellular compartments.

6. Release: The digested products are released into the cytoplasm for further utilization by the cell.

Conclusion

In conclusion, the engulfing of food materials or foreign bodies by cells like Amoeba is known as endocytosis. It is a vital process for the uptake of nutrients and the maintenance of cellular homeostasis. Through endocytosis, cells are able to acquire essential materials from their environment and carry out various cellular functions.

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