Specialised Cells - Animals CELL STRUCTURE AND TRANSPORT Flashcards
What is the function of the red blood cell?
To carry oxygen around the body
What is the function of the nerve cell?
To carry electrical impulses around the body of an animal. They provide rapid communication between different parts of the body.
What is the function of the muscle cell?
They contract and relax. They work together in tissues called muscles. They direct and relax in pairs to move the bones.
What is the function of the sperm cell?
To fertilise and egg. They contain genetic information.
How is the sperm cell adapted to its function?
The head has acrosomes which stores digestive enzymes for breaking down the outer layer of the egg. The middle section is filled with mitochondria which transfers the energy needed to move. The tail whips from side to side which helps the speed move through the females reproductive system.
How is the red blood cell adapted?
It doesn’t have a nucleus which means it has more space for oxygen. It has a biconcave disc (shape) which means it has a larger surface area.
Haemoglobin that binds with oxygen and carries it around.
How is the nerve cell adapted?
A long axon which carries impulses from one place to another.
The synapses uses special transmitter chemicals to pass on impulses to other cells.
How is a muscle cell adapted?
They have special proteins which slide over each other making the fibres contract.
Contain glycogen which is broken down and used in cellular respiration.
Lots of mitochondria.
