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Outline how neurons generate a resting potential

Neurons use a sodium potassium pump to maintain a resting potential in the body. Inside a cell normally, there are more sodium in the cell and fewer potassium outside the cell, and hence there is a negative ...
Answered by Biology tutor
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How does DNA undergo replication?

Firstly, the enzyme DNA Helicase breaks the hydrogen bonds present between base pairs. This allows the DNA double helix to unravel, exposing the DNA bases. Free DNA nucleotides then bond to the exposed base ...
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Answered by Victoria O. Biology tutor
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Define osmosis

The movement of water through a partially permeable membrane.
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Answered by Zaynah Q. Biology tutor
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How does adrenaline, using the second messenger model, cause glycogenolysis?

First of all, it is best to understand what glycogenolysis actually is. It is the breakdown of glycogen to form glucose and can be used by the liver to combat low blood glucose levels. Firstly, adrenaline bi...
Answered by Biology tutor
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explain how a diet high in salt can increase risk of developing cardiovascular disease (5 marks)

Diet high in salt increases risk of cardiovascular disease high salt diet raises BPwhich increases risk of atherosclerosis increasing the risk of inflammatory responseincreasing the risk of plaque formationN...
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Answered by Georgia E. Biology tutor
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