Can you explain the answer of this question below:The main function of lysosome is :-[UTTARANCHAL PMT 2004]A:Sexual reproductionB:Extracellular digestionC:IntracellulardigestionD:Both (2) and (3)The answer is d.

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Answer

Functions of Lysosomes: 1. Intracellular Digestion: Individual cells may obtain food through phagocytosis. The same is digested with the help of lysosomes. 2. Extracellular Digestion: For this the lysosomes release enzymes in the external environment through exocytosis.

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They contain hydrolytic enzymes and they are meant to digest foreign bodies (usually) and sometimes they do ingest the entire cell and cell organelle (in some conditions) so ans. is d

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Yeah...lysosomes are also known as 'sucidal bags' as lysosomes digests all the waste materials present in the cell i.e cytoplasm and after some period, they gets disappeared.

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Main Function of Lysosome:
Lysosomes are membrane-bound organelles found in animal cells that contain digestive enzymes. They play a crucial role in intracellular digestion and the recycling of cellular components.
Key Functions of Lysosomes:
1. Intracellular Digestion: Lysosomes are responsible for the breakdown of various biomolecules, including proteins, carbohydrates, lipids, and nucleic acids. They contain hydrolytic enzymes, such as proteases, lipases, carbohydrases, and nucleases, which break down these molecules into smaller components that can be utilized by the cell.
2. Extracellular Digestion: In some cases, lysosomes fuse with phagosomes or endosomes to carry out extracellular digestion. This occurs mainly in specialized cells, such as macrophages, which engulf and digest foreign particles, pathogens, or cellular debris through a process called phagocytosis.
3. Cellular Waste Recycling: Lysosomes also play a vital role in autophagy, a process by which damaged or obsolete cellular components are engulfed by lysosomes and degraded. This recycling process helps maintain cellular homeostasis by removing unwanted or malfunctioning organelles and recycling their components for reuse.
4. Programmed Cell Death: Lysosomes are involved in a type of programmed cell death called apoptosis. During apoptosis, lysosomes release their hydrolytic enzymes into the cytoplasm, leading to the breakdown of cellular components and eventual cell death.
5. Defense against Pathogens: Lysosomes participate in the immune response by aiding in the degradation of engulfed pathogens, such as bacteria or viruses, within phagosomes.
In conclusion, the main function of lysosomes is intracellular digestion, extracellular digestion in specialized cells, cellular waste recycling, programmed cell death, and defense against pathogens.

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