Neuron - uses electrical signals to send messages. Elongated and transmits impulses., White blood cell - Catch germs and fight diseases. Lobed nucleus allows it to squeeze between cells to reach infected areas.., Red Blood cell - Contains haemoglobin which carries oxygen from lungs to body. Has no nucleus and biconcave shape to carry oxygen more efficiently., Egg Cell - Has special information to start a new life once ferilized. Very large cytoplasm and outer covering prevents more than one sperm cell from entering., Sperm Cell - Holds info to start new life. Has tail to swim to egg cell. Packed with mitochondria for energy. , Palisade Cell - Cylindrical. Packed with chloroplasts to perform photosynthesis. , Root hair cell - No chloroplasts since it is found in soil. Increased surface area to anchor well and to absorb water and minerals. Packed with mitochondria for energy needed in active transport., Guard cell - Found on lower surface of leaf. Have chloroplasts. Uneven cell walls. Curved when swollen with water to open up for transpiration and gas exchange., Epidermal cell - Transparent and no chloroplasts. Outermost layer of leaf to protect inner tissues but allow sunlight to reach palisade cells underneath., Xylem Cell - Very Thick cell walls. Hollow inside. When mature they join up to form long hollow tube to absorb water and die.,

Specialised cells

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