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Myogenic contraction mechanism of the heart: The heart is myogenic and so the heart beats due to electrical activity from inside the heart itself. This is compared to muscle that contracts due to signals ...
The endothelium lining the arteries will become damaged due to the high blood pressure. There will be an inflammatory response increasing the chance of an atheroma forming. This will increase the chance o...
There are two main mechanisms that contribute towards the process of speciation: natural selection, and genetic drift. The result of both of these mechanisms is phenotypic and genetic change as a populati...
The lac operon is a section of DNA in E. Coli that consists of a promoter, operator and three genes encoding Beta-galactosidase, lactose permease and ano...
When an action potential occurs, the neuron reaches the maximum voltage of +40mV. It then begins to repolarise, with potassium ions diffusing back in to the neuron, down the concentration gradient. This m...
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