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How are proteins structured?

There are 4 main structural levels of proteins which allow them to be the most diverse molecules in the cell. First is the primary structure which is the sequence of amino acids found in the protein. Amino a...
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Answered by Jenna R. • Biology tutor
5739 Views

Solve the following simultaneous equations: 2a-5b=11, 3a+2b=7

Let 2a-5b=11 be Equation 1 and 3a+2b=7 be Equation 2. To find a and b, we first need to eliminate one of these variables from the equation. Firstly we can eliminate a from both equations to find b. To do thi...
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Answered by Gemma C. • Maths tutor
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If y = 2(x^2+1)^3, what is dy/dx?

Since the equation for y is a composite function (applying one function to another function) we need to use the chain rule to answer this question. Firstly let u = x^2+1 . This allows us to write y = 2u^3. D...
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Answered by Gemma C. • Maths tutor
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What makes you a good teacher of the subject?

I have always had an interest for the subject and find it very interesting. I have achieved both GCSE and A-Level biology and am currently studying Biochemistry with Genetics at university. I understand the ...
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Answered by Ruth E. • Biology tutor
3546 Views

What is price elasticity of demand and how is it measured?

Price elasticity of demand (PED) measures the responsiveness of percentage change in the quantity demanded of a good with respect to a percentage change in the price of a good. It is measured by the formula:...
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Answered by Hadiqa Z. • Economics tutor
16192 Views