Specialisation In Animal Cells Flashcards
What are the use of nerve cells?
They carry electrical impulses around the body of an animal
Why do nerve cells have lots of dendrites?
To make connections to other nerve cells
Why do nerve cells have an axon?
To carry the nerve impulse from one place to another in the nerve cell
Why do nerve cells have synapses?
To pass the nerve impulse to another cell or between a nerve cell. They have lots of mitochondria to provide the energy needed to make chemicals
What are the use of muscle cells?
They are needed to contrast and relax. They contrast and relax in pairs to move the bones in the skeleton
Why do muscle cells have special proteins?
They have special proteins that slide over each other causing the fibers to contrast
Why do muscle cells have many mitochondria?
To transfer energy needed for chemical reactions
Why do muscle cells store glycogen?
They store glycogen which is a chemical that can be broken down and used in cellular respiration
What are the use of sperm cells?
To reproduce with an egg cell. Sperm cells contain genetic information from the male parent
Why do sperm cells have a long tail?
They use it for movement, it wips from side to side in the water or female reproductive system
Why do sperm cells have a middle section?
It is filled with mitochondria to transfer energy to the tail
Why do sperm cells have a acrosome?
It stores digestive enzymes to break the layer of a egg
Why do sperm cells have a nucleus?
It contains the genetic information
