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Define osmosis

Osmosis is the movement of water from an area of high concentration to an area of low concentration until an equilibrium is reached. It occurs in cells in the body.
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Answered by Elizabeth N. • Science tutor
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Explian how aversion therapy can be used to treat unwanted behaviour such as smoking

Aversion therapy is where an unpleasant event accompanies the behavior that needs to be changed, so that the individual associates this behaviour with the behaviour and no longer does it. In the case of smok...
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What is a cytoskeleton? What are its main components in animal cells?

A cytoskeleton is a structure that acts as a support for the cell. It also maintains the cell shape, holds and moves organelles. It is made from a fibre network dispered in the cell cytoplasm, attached in th...
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Answered by Bethany H. • Biology tutor
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What is the electronic configuration of Chlorine and of a chloride ion and explain why Chlorine is 'happiest' as a chloride ion.

Cl - 1s22s22p63s23p5 Cl- - 1s22s22p63s23p6 The 3p orbital is slightly unstable because of the single unpaired electron which is at a higher energy and wants to pair up, the 3p orbital is more stable when the...
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Answered by Molly S. • Chemistry tutor
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How does the body bring blood glucose concentration from a high level back to normal?

When blood glucose concentration rises above its optimum level of 90mg/100cm 3 , it is detected by β-cells in the Islets of Langerhans in the pancreas. These β-cells release insulin into the bloodstream. Ins...
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Answered by Emily H. • Biology tutor
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