Top answers

Why can enzymes only catalyse one specific reaction?

Because enzymes have a specific tertiary structure which defines the 3D shape of the active site. This means that only a substrate with a complimentary shape to the active site can bind to it and form an enz...
JM
Answered by Jasmine M. • Biology tutor
7647 Views

How do I structure an essay?

One very simple way to structure essays at A-Level and GCSE is to follow the same pattern so that you don't get confused, or end up waffling. I always start with an introduction, pick out three or four main ...
TD
4644 Views

When tackling a piece of unseen poetry , where do I start?

Facing any piece of literature that you aren't familiar with, and being expected to analyse is daunting. But if you approach it calmly, I find it is quite doable. It sounds obvious, but first, make sure to r...
FD
Answered by Francesca D. • English tutor
2376 Views

Explain the difference in the rates of reaction at 60 °C and 37 °C between 20 and 40 minutes.

"A technician investigated the effect of temperature on the rate of an enzyme-controlled reaction. At each temperature, he started the reaction using the same concentration of substrate. Explain the dif...
EC
Answered by Ellie C. • Biology tutor
10852 Views

How do I write a personal statement that is relevant but unique?

-First, take some time to free write. This means to write down everything relevant to the personal statement about why you want to pursue a particular university course onto a piece of paper, or a Word docum...
OM
2888 Views