Top answers

All subjects
A Level

Describe and explain the effects of non-optimal pH and temperature on enzyme activity.

Enzymes at the wrong pH experience changes in the charge of the molecule, this can cause impacts on hydrogen and iconic bonds. Enzymes become denatured as terry structure is lost and the active site is no...

DW
Answered by Daisy W. Biology tutor
6016 Views

Outline the meaning of term 'parliamentary sovereignty'.

Parliamentary sovereignty is the sum of legal sovereignty and political sovereignty. Legal sovereignty means that the body is the highest body for making law. For instance, in the UK, Parliament can pass ...

HC
Answered by Hannah C. Law tutor
2354 Views

How are the lungs adapted to increase the rate of diffusion? 3 Marks

Increase in surface area, which is provided by the many alveoli that are located at the end of the bronchioles. These can number in the thousands.
The alveoli have a thin wall, one cell thick, so dif...

LC
Answered by Louise C. Biology tutor
5610 Views

How is the idea of the spinning wheel communicated in Schubert's 'Gretchen am Spinnrade'?

Firstly, Schubert emulates the spinning wheel through his use of incessant semiquaver motion in the right hand of the piano accompaniment. The pattern opens the piece and recurs throughout, with the initi...

RH
Answered by Rachel H. Music tutor
3752 Views

Evaluate the integral (write on whiteboard, too complicated to write here)

Make sure integral is in terms of sines and cosines onlyFactor out sine of numerator and make fraction in terms of cosineSubstitution y=cos(x)Fractions decompositionAnother 2 substitutionsSolve

GL
Answered by Gemma L. Maths tutor
3466 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