Specialised Cells Flashcards
Specialised Cell…
cells which are designed to carry out a particular role in the body
Sperm cell…
male sex cell which its function is to fertilise the egg cell.
Has a tail so that it can swim and a pointed head to help it get into the egg cell. The mitochondria provide all the energy it needs to swim.
Egg (ovum) cell…
female sex cell which its function is to be fertilised.
Nerve Cell…
nerve cells are very long with a connection at each end – their function is to carry nerve signals around the body
e.g. from the brain to a muscle.
Red Blood Cell…
red blood cells carry oxygen around the body
Has a very large surface area so that they can absorb as much oxygen as possible
Contain a red substance called haemoglobin which carries the oxygen
No nucleus
Palisade Cell…
found in the leaves
contains lots of chloroplasts so that they can absorb as much sunlight as possible to maximise the amount of photosynthesis that can take place
Root Hair Cell…
found in the roots of plants – they make the root look ‘hairy’
has a long extension that sticks out into the soil
large surface area and thin cell wall to maximise the absorption of water and minerals from the soil.
Cilia cell…
found in the lining of our airways
They have tiny hairs that can beat backwards and forwards to sweep mucus and dirt away from our lungs
