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The DNA double helix unravels as helicase breaks the hydrogen bonds between base pairs. RNA polymerase binds to the promoter region on the DNA strand. The RNA polymerase transcribes the DNA coding strand ...

Acetyl CoA (2 carbon compound) from the link reaction combines with a 4 carbon compound called oxaloacetate. This reaction releases the CoA enzyme allowing it to be re-used. The now 6 carbon compound (cit...

Firstly, blood glucose in the hepatic portal vein increases after a meal and this is due to the hepatic portal vein transporting blood from the gut to the Liver. Therefore, blood glucose will increase as ...

This will cause eutrophication. Under normal circumstances, nutrients are a limiting factor for algal growth. When the fertiliser leaches into the lake, the excess nutrients will therefore allow algae at ...

A diet high in saturated fats can increase risk of cardiovascular disease. This is due to higher blood cholesterol levels. Cholesterol is a major constituent of the fatty streaks deposited in the artery l...