Top answers

All subjects
A Level

How do I approach the presentation at the end of my EPQ?

Once you have completed your project, you will be asked to give a presentation about your project to an audience (which must include your supervisor). This is an opportunity to talk about your project in ...

SW
7416 Views

What is a chiral carbon and optical isomerism?

A chiral carbon is a carbon with four distinct molecular groups bonded to it. The main consequence of this is imposing optical isomerism to the compound. Optical isomers can be thought of as a non-superim...

MK
Answered by Michael K. Chemistry tutor
2546 Views

What are 3 accounting concepts used when preparing a set of accounts?

Accruals concept. The accruals concept is a concept used in the preparation of accounts. The accruals concept states that revenue (sales) should be recorded when the revenue is earned, not when the cash i...

JP
Answered by James P. Accounting tutor
2787 Views

Explain how an adult develops immunity to a bacterial toxin

When the body is exposed to a bacterial toxin for the first time, it is recognised as foreign and an immune response will be mounted. In response to the toxin, B lymphocytes will be produced which make an...

Answered by Biology tutor
3664 Views

Why could a single base mutation stop an enzyme from catalysing a reaction?

Because the single base mutation would change the primary structure of the enzyme which in turn would change the secondary structure of the enzyme due to the differences in hydrogen bonds formed. As a res...

Answered by Biology tutor
2794 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning