1.4 Specialisation in animal cells

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10 Terms

1
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Function of the nerve cell

Carries electrical impulses through body and brain

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Adaptations of the nerve cell

  • Mylelin sheath - insulted the signal so it goes further

  • dendrites - connects to other nerve cells

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Function of the sperm cell

Carries genetic information to fertilise the egg

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Adaptations of the sperm cell

  • Tail - allows it to move

  • Many mitochondria - lots of energy released

  • Nucleus in head - contains genetic information

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Function of the smooth muscle cell

Allows movement

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Adaptations of the smooth muscle cell

  • connected to bones via tendons

  • filament bundles - make cells contract/relax

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Function of the red blood cell

Transports oxygen

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Adaptations of the red blood cell

  • biconcave - more surface area for diffusion of gases

  • haemoglobin - binds to oxygen

  • no nucleus - save space

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Function of the ciliated cell

Makes + sweep mucus to trap foreign matter

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Adaptations of the ciliated cell

  • hair like cilia - increase area for mucus secretion

  • columnar - many form a lining

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