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2.4 organelle func.

B2.4 (cellular processes): function of organelles

Nucleus Contains the genetic material (DNA) of the cell.
Ribosome The site of protein synthesis. They may be attached to the ER or free.
Cytoplasm The jelly-like fluid inside cells. It offers support to the cell and is the site of some reactions.
Vacuole Used to store different compounds. It is large and central in plants.
Golgi body It modifies and packages proteins for transport.
Endoplasmic reticulum Involved in the synthesis of proteins, steroids and lipids (fats). It may be smooth or rough.
Mitochondria The site of aerobic respiration.
Plasma membrane Separates the cytoplasm from the extracellular environment and controls what enters and exits the cell.
Cell wall The semi-rigid layer on the outside of plant cells. It is made of cellulose and provides structural support.
Chloroplast The site of photosynthesis. It is only found in plant cells.
Lysosome Breaks down waste material.
Nucleolus Produces ribosomal RNA
Created by: missmuldrew



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