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A Level

How should I lay out my global politics 45 mark questions?

45 markers can be easily broken down in 2 ways. Always start with an introduction, which should include an overview of the institution or topic you’ve been asked about (for example, if asked about UN e...

EB
4897 Views

Explain the structure of DNA.

DNA is a polymer made up from monomer units. The monomers that make up a DNA molecule are called nucleotides. Nuceleotides are made up of a nucelic acid (adenine/guanine/thymine/cytosol); a five carbon...

GC
Answered by Geraldine C. Biology tutor
5420 Views

why does log a + log b = log (ab)

Let log a be some number A and log b be some number B

now the natural log of something is the equivalent of saying a=e^A and b = e^B

So a*b = e^A * e^B which by rules of ind...

RV
Answered by Rebecca V. Maths tutor
5594 Views

Explain why an enzyme catalyses only one reaction.

Enzymes only have one active site which is only complementary to one specific substrate. 

LL
Answered by Luckksha L. Biology tutor
17710 Views

Define the term ‘derived demand’

The demand for a good or service reulting from or leads to the demand for another good or service. 

LL
4243 Views

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