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Specialised Cells

Specialised Cells. Plants and animals are multicellular (consist of many cells). They contain many different types of cells. Each type of cell is designed to carry out a particular job or function. This is known as CELL SPECIALISM Not all cells look the same.

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Specialised Cells

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  1. Specialised Cells • Plants and animals are multicellular(consist of many cells). • They contain many different types of cells. • Each type of cell is designed to carry out a particular job or function. • This is known as CELL SPECIALISM • Not all cells look the same. • Some cells have a special shape and features to help them do a certain job.

  2. Sperm cell Head contains enzymes & nucleus • The head contains enzymes which allow it to digest into an egg cell and join with it. • Designed to Fertilise eggs. • Found in the Testes Tail • A sperm is small and has a long tail that provides movement so it can swim and find an egg cell.

  3. Egg (Ovum) Cell • Designed to be Fertilised. • Found in the Ovaries. • An egg cell is large and bulky. • Contains yolk which provides a large food store for the new cell being formed. Cytoplasm containing yolk Layer of jelly Nucleus

  4. Palisade Cell • Designed for Photosynthesis • Found in the top of a leaf • Tall and has a large surface area to absorb water and minerals. • Packed with chloroplasts to help make plant food. Nucleus Chloroplasts

  5. Ciliated Cell • Designed to stop Lung Damage • They line all the air passages in the lungs. • They have tiny hairs called cilia. • Hairs sweep mucuswith trapped dust and bacteria back up the throat. Nucleus cilia

  6. Root Hair Cell • Thin cell wall makes it easy for minerals to pass through. Vacuole • Designed for absorbing. thin cell wall • Has a large surface which helps it to absorb water and minerals. Cell membrane • Found in a plant root.

  7. Nerve Cell (neurone) Nucleus • They are long • They have connections at each end • Can carry electrical signals • Their job is to carry nerve impulses to different parts of the body.

  8. Red Blood Cell • Designed to carry oxygen • Found in blood. • Large surface area, for oxygen to pass through. • Contains haemoglobin, which joins with oxygen. • Has no nucleus

  9. Questions • Why are nerve cells so long? • Where are egg cells found? • What is palisade cell specialised to do? • Why does a root hair cell have a thin wall? • The hairs in a ciliated cell are known as? • What is a sperm cell designed to do? • How are red blood cells different from other cells?

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