Types of cells in animals Flashcards
Learn about the various types of cells located in animals and their functions.
What are some key adaptations of a nerve cell?
The dendrites, nucleus, axon and myelin sheath.
What is the function of the Axon?
It’s the part of the cell that the electrical signals travel on. Also, it’s long so it increases the distance that electrical signals can travel.
What’s the purpose of the myelin sheath?
This sheath made of myelin surrounds the axon of a nerve cell which stops the electrical signals from leaking out of the cell. This increases the speed of transmissions of the signals.
What’s the purpose of the dendrites?
They’re the branches of a nerve cell. They spread outwards from the cell to transfer messages to other neurons. The messages travel between neurons at synapses.
What are the key adaptations of a muscle cell?
Mitochondria and protein fibres.
What’s the purpose of mitochondria in a muscle cell?
It needs lots of energy produced by the mitochondria for motion.
Why are protein fibres important in a muscle cell?
The fibres can contract, allowing the muscle to move.
