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Specialized Cells

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Specialized Cells


Learning outcome – to understand the difference between plant and

                                        animal cells and to learn about the different cells

                                        and there functions.

 

All living organisms are made up of cells. Cells are the building blocks of life.

Because there are a vast number of cells, some cells are specialized to

ensure they provide a specific function.

 

EXAM TIP

Never call the nucleus the “brain of the cell”, it is not a very good description

and will not get you any marks.

 

EXAM TIP

Learn the difference between animal and plant cells, as it is a very common

question.

 

  Red Blood cell To carry oxygen in the blood.Has hemoglobin which carries the oxygenHas a concave, donut like shapeDoes not have a nucleus so it can carry more oxygenHas a large surface area to allow to carry more oxygen
  Nerve CellCarries nerve impulses (messages) from the body to the brain and back again.They are long, have many connections so can reach every corner of the bodyThey carry electrical signals so the impulse is relayed quickly
  Egg cellTo join with the sperm cell and provide nutrition for the zygote (new cell) when formed.It is large and contains lots of cytoplasm for reaction to take place.
  Sperm CellTo reach the egg cell and join.Has a tail, which allows it to move.Also has a head to carry genetic information and penetrate the egg cell.
  Root Hair CellTo absorb water and minerals.Has a large surface area, which allows it to absorb as much as possible.
  Palisade cell          (Leaf cell)To absorb sunlight to allow the plant to photosynthesize.Has a large surface area and many chloroplasts, which allow it to absorb as much sunlight as possible.

 

 

Related Topics


Animal Cells And Plant Cells                                Unicellular Organism

Cells, Tissues, Organs And Systems                    Diffusion