GA, Lysosome, Ribosomes
- Created by: Molly Webb
- Created on: 30-03-15 09:55
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- Golgi Apparatus, Lysosomes and Ribosomes
- Golgi Apparatus
- Series of flattened sacs
- Structure is constantly changing
- One side, vesicles move towards the apparatus and fuse with it
- the other side, the sacs break down and form vesicles that move away from GA
- Packages and modifies proteins
- May sometimes add sugars
- May then be transported in a vesicle to the plasma membrane
- This fuses and deposits proteins outside cell by exocytosis
- Some vesicles may stay inside the cell and functions as digestive enzymes- Lysosomes
- eg) the lysosome acrosome is in the head of a sperm
- these enzymes digest a pathway into an egg just before fertilisation
- eg) the lysosome acrosome is in the head of a sperm
- One side, vesicles move towards the apparatus and fuse with it
- Ribosomes
- tiny organelles which may be free in cytoplasm or bound to ER
- Site of protein synthesis
- act as an assembly line where coded informations mRNA from the nucleus is used to assemble proteins from amino acids
- Golgi Apparatus
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