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organisation cells and microscopy - Coggle Diagram
organisation cells and microscopy
cell types
animal cells
are eukaryotic
plant cells
are eukaryotic
Bacterial cells
are prokaryotic and are much smaller in comparison
animal and plant cells
animal cells
cytoplasm
- most of the chemical reactions take place here
cell membrane
- controls the passage of substances into and out of the cell. It also contains receptor molecules
nucleus
- controls the activities of the cell
ribosomes
- where protein synthesis occurs.
mitochondria
, which is where aerobic respiration takes place
plant cells
cell membrane
- controls the passage of substances into and out of the cell. It also contains receptor molecules
ribosomes
- where protein synthesis occurs.
cytoplasm
- most of the chemical reactions take place here
chloroplasts
- absorb light (using chlorophyll) to make food by photosynthesis
nucleus
- controls the activities of the cell
permanent vacuole
- filled with cell sap.
mitochondria
, which is where aerobic respiration takes place
cell wall
- made of cellulose, which strengthens the cell.
magnification = size of image / size of real object
bacterial cells
have cytoplasm and a cell membrane surrounded by a cell wall.
The genetic material is not enclosed by a nucleus. It is a single DNA loop and there may be one or more small rings of DNA plasmids
An electron microscope has much higher magnification and resolving power than a light microscope. This means that it can be used to study cells in much finer detail. This has enabled biologists to see and understand many more sub-cellular structures.