Lysosomes
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- čas přidán 8. 10. 2023
- Lysosomes Class 11
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Lysosomes are membrane-bound organelles found in the cells of most eukaryotic organisms. They are often referred to as the "garbage disposal" or "digestive organelles" of the cell because their primary function is to break down and recycle cellular waste materials, as well as to digest cellular components and foreign substances.
Here are some key features and functions of lysosomes:
1. Structure: Lysosomes are typically small, spherical organelles enclosed by a single lipid bilayer membrane. This membrane helps to contain the digestive enzymes within the lysosome and prevent them from damaging the rest of the cell.
2. Enzymes: Lysosomes contain a variety of hydrolytic enzymes, including proteases (enzymes that break down proteins), lipases (enzymes that break down lipids), and nucleases (enzymes that break down nucleic acids). These enzymes function optimally at an acidic pH, which is maintained within the lysosome.
3. Cellular Recycling: Lysosomes play a crucial role in the recycling of cellular components. They break down old or damaged organelles, cellular debris, and macromolecules, allowing the cell to reuse the resulting smaller molecules and building blocks.
4. Autophagy: Lysosomes are involved in a process called autophagy, which is the cell's way of self-cleaning and self-renewal. During autophagy, a cell engulfs and digests its own organelles or other materials that are no longer functioning correctly or are no longer needed.
5. Cellular Defense: Lysosomes are also involved in the defense against invading microorganisms. They can fuse with phagosomes, which are vesicles containing ingested pathogens or particles, to digest and eliminate these foreign substances.
6. Genetic Diseases: Mutations or defects in lysosomal enzymes or transport proteins can lead to lysosomal storage diseases. These are a group of rare genetic disorders in which substances that should be broken down and removed by lysosomes accumulate within the organelles, causing various health problems.
Lysosomes are vital cellular organelles responsible for breaking down and recycling cellular waste, maintaining cellular health, and defending against pathogens. They play a crucial role in maintaining the overall function and integrity of a cell.
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some hydrolytic enzymes present in lysosome are amylase, nuclease, protease and lipases.
The video is extraordinary ma'am. Especially the explanation way 👌
Please mam make more videos on the topics as glycolysis,kreb cycle
Good video. Though I have a query. Do lysosomes digest the food material as they are forming the complex with food ?
The visuals were amazing! Thankyou for this amazing video mam
Thank you Sriritwik!
Catalaze enzymes responsible for the breakdown of glucose
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Ma'am! Please make more lectres on other topics like biodiversity, respiration, photoaynthesis etc.
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excellent ma'am huge respect ❣❣
Mam please make videos on diversity in living organisms
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Good explanation mam 🙂
Thank..mom super explanation
Perfect teaching
Ans . Hydrolytic enzyme... EXCEPTIONALLY PERFECT CONCEPT
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Excellent video
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Keep going on
Cathepsin enzymes (a form of protease)
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Acid phosphatase
Very nice video
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Acid hydrolases
I have doubt sir how hydrogen bonds used in our body
Can you please make lessons for class 11 and 12
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Digestive enzymes
Hydrolytic enzyme
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Hydro lytic enzymes
Lipases, proteases, carbohydrases ...
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Excellent teaching madam ,good visuals. best teacher in the world 💐
Acid phosphatase
Hydrolytic enzyme
Acid hydrolaes