- Function : To carry male genetic information to the ovum and cause fertilization.
- Only contains half DNA information so that fusion between the gametes creates a full set of chromosomes.
- Tail : allows faster movement and is streamline.
- Nucleus : contains male's genetic information.
- Lots of Mitochondria : provides extra energy so sperm can swim faster.
- Acrosome (head) : to dissolve the egg cell, and allows the egg and sperm cell to fuse.
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- Function : Hold mothers genetic information and once fertilized divides ad dives to from a baby.
- Largest cell in the body.
- Size : Contains lots of cytoplasm - food store to provide energy and food for growing embryo.
- Nucleus : contains female's genetic information.
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CILIATED EPITHELIAL CELL
- Function : To move liquids or small particles.
- They are found in the wind pipe and lungs. Mucus in the air passages traps dirt and bacteria. Cilia moves the mucus to the back of the throat.
- Many Cilia : Cilia beat together to move the liquid or particles.
- Lots of Mitochondria : energy is needed to keep the cilia beating.
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Red Blood Cell
RED BLOOD CELL
- Function : To transport oxygen around the body.
- Full of Haemoglobin : It binds to oxygen allowing the oxygen to be transported.
- No Nucleus : More room for haemoglobin - more oxygen.
- Bi-Concave : Larger surface area, oxygen can diffuse (move in and out) of the cell faster.
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- Function : To contract and cause movement in the body.
- Works antagonist - in pairs.
- Lots of Mitochondria : Allows more (aerobic) respiration so more energy can be used for contraction.
- Protein Filaments : They pull together, making the cell shorter and therefore making the muscle shorter - contracting.
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