lysosome
structure-
location-
function-
Answers
Answer:
Lysosomes are spherical, membrane bound organelles that are generated by the golgi apparatus. They contain hydrolytic enzymes, and so function as part of the recycling system of the cell.
In this article, we will look at the structure, synthesis and function of lysosomes, and we will consider their relevance to clinical practice.
Structure
Lysosomes are acidic membrane-bound organelles found within cells, usually around 1 micrometre in length. Lysosomes contain numerous hydrolytic enzymes which catalyse hydrolysis reactions.
The membrane surrounding the lysosome is vital to ensure these enzymes do not leak out into the cytoplasm and damage the cell from within. In order to maintain the acidic pH of the lysosome, protons are actively transported into the organelle across the lysosomal membrane.
Function
The hydrolytic enzymes contained within the lysosome allow foreign particles to be destroyed. Lysosomes play an important role in phagocytosis. When macrophages phagocytose foreign particles, they contain them within a phagosome. The phagosome will then bind with a lysosome to form a phagolysosome.
These enzymes are critical in oxygen-independent killing mechanisms. Lysosomes also help to defend against pathogen entry via endocytosis by degrading pathogens before they reach the cytoplasm.
Location
Lysosomes are a membrane enclosed sac of enzymes that are found in the cytosol of the cytoplasm of an eukaryotic cell.
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Answer:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes.
Structure- They have a simple structure made up of an outer lysosomal membrane surrounding an acidic interior fluid. Lysosomes are like small cell stomachs
Location-They are located in the cytosol of the cells, floating freely within the cells outside the nucleus.
Functions:-
- Intracellular digestion
- Removal of dead cells
- Role in metamorphosis
- Help in protein synthesis
- Help in fertilization
- Role in osteogenesis