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Specialised cells - Coggle Diagram
Specialised cells
Muscle cells
function: contract and relax to move the skeleton and substances around the body.
They have many mitochondria to provide energy for contraction.
they contain filaments of protein to enable contratction.
the arrangement of the protein filaments is what causes the appearance of the heart.
In the skeletal muscle the cells merge so they can contract in unison
muscle cells store glycogen which can be broken down and used in cellular respiration.
Nerve cells
nerve cells are used to send electrical impulses through the body.
They provide a communication method
they have lots of dendrites to help with connections to other cells.
They have an Axon that carries nerve impulses
they axon of a nerve cell in a blue whale can be 25m long.
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Root hair cell
has a large surface to provide contact with soil water.
it has thin walls so it doesn't disrupt the flow of water.
absorbs water and mineral irons
it needs many mitochondria to provide energy
sperm cells
it carries the genetic material from the father
It fertilises the egg cell
has many mitochondria to provide energy to the tail
The head of the cell carries genetic material
Xylem
It carries water and minerals from the roots the the rest of the plant
It has a one way flow system
Contains dead hollow cells to make more space for the substances to move
Phloem
Transports carbon from the leaves
distributes sugar and nutrients
transports compounds from photosynthesis
