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Cells
Anatomy
Question | Answer |
---|---|
Cell membrane | An outer coating which selectively transports substances into and out of the cell |
Nucleus | The control centre of the cell, regulating its general and specialist functions. |
Ribosome | Made of ribonucleic acid (RNA) and protein, they manufacture other proteins. |
Rough and smooth endoplasmic reticulum | This manufacturs, stores and transports materials within and outside the cell. |
Mitochondria | Situated in the cytoplasm, these supply the cell's energy source. |
Centrioles | Essential for cell division |
Lysosomes | Contain enzymes which digest worn out parts of the cell for recycling and elimination of waste products. |
Golgi Apparatus | Modifies and stores manufactured protein and trasnports it out of the cell. |
Respiration | Cells require and obsorb oxygen to produce heat and energy |
Growth | Cells grow to maturity by manufacturing proteins. They may then divide or specialise. |
Excretion | When waste products pass out through the cell membrane. |
Irritability | Cells can respond to physical, chemical or thermal stimulus. |