Biology-plant cells, cells and cell structure.

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Cell wall
Made of cellulose that strengthens the cell and gives it support.
Chloroplast
Found in all green parts of the plant. They are green because they contain a green substance chlorophyll; which absorbs light energy to make food by photosynthesis. Root cells do not have chloroplast because they are underground and do not photosynthesise.
Permanent vacuole
Space between the cytoplasm filled with cell sap, important for keeping the cells rigid to support the plant.
Nucleus
Control school activities of the cell. Contains genes on chromosomes. Carrie instructions for making new cells a new organisms.
Cytoplasm
Liquid gel, most chemical reactions needed for life to take place.
Cell membrane
Controls the passage of substances into and out of the cell.
Mitochondria
Structures in the cytoplasm where oxygen is used and most of the energy is released during respiration.
Ribosomes
Where protein synthesis takes place, all proteins needed in the cells are made here.
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