Specialised cell

Specialised cell
Plants and animals consist of many cells and so are known as multicellular.
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 special shape and features to help them do certain job.   

      Not all cells look the same.Some cells have a special shape and features to help them do a certain job.

      Sperm cell

     A sperm is small and has a long tail that provides movement so it can swim and find an egg cell.The head contains enzymes which allow it to digest into an egg cell and join with it.

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.

Palisade Cell

Designed for PhotosynthesisFound 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.

Ciliated Cell

  Designed to stop Lung Damage        They line all the air passages in the lungs.
They have tiny hairs called cilia.
Hairs sweep mucus with trapped dust and bacteria back up the throat.

            Root Hair Cell

Thin cell wall makes it easy 

for minerals to pass 

through.

Has a large surface which 

helps it to absorb water and 

minerals.

Found in a plant root.

Special features:

  long, thin cells arranged end-to-end to form vessels /tubes/. The cells lack end walls and cell contents such as cytoplasm and nucleus. The walls become lignified.

Function:

  transport water and mineral ions from roots to leaves. Lignin provides strength for the stem and makes the vessels waterproof

Nerve Cell (neurone)

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

                                                                                                                   











Designed to carry oxygenFound in blood.Large surface area, for oxygen to pass through.Contains haemoglobin, which joins with oxygen.Has no nucleus