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What is an enzyme and what effect does temperature have on enzyme activity? (6 marks)

An enzyme is a globular protein that acts as a biological catalyst.  They work by reducing the activation energy of chemical reactions, which increases the rate of reactions.

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IO
Answered by Isabel O. Biology tutor
15737 Views

What are the limitations on the Prime Minister?

The media: Can pick up on small things such as Gordon Brown referring to Gillian Duffy as a bigot.

The Party: The Conservative Parties backbench demands for a European Uniion referndum wh...

TC
7212 Views

What are the advantages of franchising?

The franchisee will be buying into a established brand so there will be less risk of the business failing because they have a good repuattion and have a product which consumers will demand.

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TC
3592 Views

Describe the photoelectric effect.

The photoelectric effect is a phenomenom which occurs when photons strike a metal causing electrons to be released from the metal atoms. This occurs because the photons transfer their energy to the ele...

IW
Answered by Iman W. Physics tutor
3847 Views

Differentiate x^2+4x+9.

To differentiate you must look at each term separately. So for x^2 to differentiate we bring the two down to multiply in front of the x and then take one away from the power leaving 2x. For 4x, x is to...

IW
Answered by Iman W. Maths tutor
5845 Views

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