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GCSE

What is an enzyme?

An enzyme is a type of protein that catalyses reactions that occur in the body. In many cases they are essential in order to allow reactions to occur under physiological conditions. There are many differe...

RA
Answered by Rohin A. Biology tutor
4949 Views

Rearrange the equation y=3x+2 to make x the subject.

The most important thing to remember about rearranging equations is that what you do to one side, you have to do to the other side as well to balance it. In the question above, to get rid of the 2 on t...

MN
Answered by Matthew N. Maths tutor
79716 Views

How do I know whether to add or minus in Pythagoras's theorem?

Firstly it has to be a right angled trinagle. Even if it is an irregukar shape, draw a line in to make it a right angled triangle. When you have your right angled triangle remember it is ALWAYS + if it...

NM
Answered by Nehemie M. Maths tutor
42095 Views

What is the difference between pronouns and adjectives?

A pronoun is a word used as a substitute for a noun or a noun-phrase. For example "mon chat" can be replaced by "le mien" (meaning mine). An adjective is a word used to enhance or m...

JV
Answered by Julia V. French tutor
14347 Views

Briefly describe the components of blood and their functions.

55% of blood is made up of plasma. This liquid component holds the other component of blood, cells, in suspension and thus is vitally important to their transport. Plasma is also important in transporting...

BG
Answered by Benjamin G. Biology tutor
10558 Views

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