Specialised cells
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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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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.

  • Some cells have a special shape and features to help them do a certain job.


Sperm cell

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.


Egg ovum cell

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


Palisade cell

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


Ciliated cell

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


Root hair cell

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.


Nerve cell neurone

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.


Red blood cell

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


Questions

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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