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2^x = e^{ln(2^x)} = e^xln(2) , d/dx(e^xln(2)) = ln(2)e^xln(2) = ln(2)*2^x

let u=kx,du/dx=ky= 4 sin(u)dy/du= 4cos(u)
dy/dx= du/dx*dy/du = 4kcos(u) =4kcos(kx)

When an enzyme comes into contact with a substrate that fits its active site, it will bind to it and form an enzyme-substrate complex. This binding alters some of the bonds in the substrate to be slightly...

At first, the shape of the Hb makes it hard for oxygen to bind to one of the polypeptide subunits so at low concentrations of oxygen, the saturation of oxygen is low too.
Once the first molecule of o...

So with these kind of questions they tend to be more of a first part to a question, probably worth about two marks on an A Level exam.The first thing to spot with this question is that f(x) contains a pro...