Top answers

What are the similarities and differences between competitive and non-competitive inhibition within enzymes?

Competitive inhibition occurs when the substrate and inhibitor molecule are similar in shape and size and therefor compete to bind in the enzymes active site, non-competitive inhibition however is when the i...
SW
Answered by Stella W. • Biology tutor
7748 Views

Explain the process of evolution?

Evolution occurs via a process called natural selection,Natural selection (termed survival of the fittest by Darwin) is where organisms that are better adapted to an environment survive and reproduce. Theref...
SW
Answered by Stella W. • Biology tutor
3654 Views

y(x) = x^2(1-x)e^-2x , find y'(x) in the form of g(x)e^-2x where g(x) is a cubic function to be found

For this question, I would first expand the brackets in the given y(x) to form , x^2e^-2x -x^3e^-2x . With this form, I would then differeniate using the chain rule to then obtain the expression that can eas...
AB
Answered by Arjun B. • Maths tutor
3972 Views

A rectangle of perimeter 45cm has sides of length x and x+4. Work out the value of x.

First, draw a diagram to help visualise the problem. Next, write out the full sum: x + x + (x+4) + (x+4) = 45 This simplifies to: 2x + 2(x+4) = 45 Which expands to: 2x + 2x + 8 =45 This simplifies to: 4x + 8...
IR
Answered by Imogen R. • Maths tutor
7280 Views

Maltose is hydrolysed by the enzyme maltase. Explain why maltase catalyses only this reaction (3 marks)

The question is three marks, so should have three points.1) Active site of the enzyme has a specific shape / tertiary structure / complementary to maltose 2) Only maltose can bind / fit3) Forms an enzyme-sub...
AW
Answered by Amy W. • Biology tutor
3161 Views