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Cofactors and coenzymes bind to an enzyme's allosteric site. This causes interactions between hydrogen bonds in the tertiary structure of the protein to change- altering its structure.The change of struct...

For a question that starts with discuss you would need to answer with at least three points, four if you have time. You would need to make sure your answer is balanced, therefore giving two strengths of t...

This question is asked a lot at GCSE level, and it can be approached in many different ways. You must think about the family vocabulary that you are familiar with. Think of words for family members, what ...

Whilst most students will refer to Kachru's 'Circles' model. Another useful theorist to remember is Schneider, who proposed the dynamic model. Schneider studied how English becomes established around the ...

There are 3 types of stationary points for functions: a maxima, a minima and a saddle point. They all occur when the derivative of a function, f(x), is equal to 0, e.g. f'(x)=0. Therefore in order to find...