Functions of some cell organelle:
1. Nucleus: Control center of the cell. Contains DNA
which directs the synthesis of
proteins by the
cell.
2. Mitochondria: Carries on the process of cell
respiration by converting glucose to
ATP energy.
3. Ribosome: Found on the endoplasmic reticulum and free within the
cell.
Responsible for the synthesis of proteins for the cell.
4. Endoplasmic reticulum: Transport channels within the cell.
5.
Food vacuole: stores
and digests food.
6. Lysosomes: Contain digestive enzymes. Breaks down substances in the
cell.
7. Contractile vacuoles: Pumps out wastes and excess water from
the cell.
8. Cell membrane: Selectively
regulates the materials moving to and from the cell.
9. Chloroplast: Found only in plant cells and algae. Contains chlorophyll (the green
coloring substance in plants) which carries on the process of photosynthesis.
10. Cell wall: Surrounds and supports plant cells. Only in plants. The cell wall is formed
from the cell plate during cell division.
EXAM TIPS:
- If you see centriole
and centrosome in a question, think of an animal cell. They occur only in animal cells and they are
involved in cell division where they produce spindles.
- If you see cell plate and chloroplasts
in a question, think of a plant cell. They
occur only in plant cells.
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