Top answers

All subjects
A Level

What is the difference between DNA and mRNA?

DNA is much longer than mRNA and forms a chromosome, whereas mRNA is much shorter; corresponding to a single gene. DNA is structurally different; it is usually found as a double helix and contains the bas...

CM
Answered by Charlotte M. Biology tutor
4342 Views

Why is the bond angle in an amide ion smaller than the bond angle in a molecule of ammonia?

The nitrogen atom in both NH3 and NH2- has 8 outer shell electrons. In NH3, 3 pairs of these electrons are used in covalent bonding to hydrogen atoms and the re...

AG
Answered by Anna G. Chemistry tutor
14580 Views

Explain how a plant is able to make glucose from carbon dioxide.

Plants carry out photosynthesis which contains the light dependant and light independent reaction . CO2 is used in the light independent reaction- the Calvin cycle. Co2 enters the stroma in a chloroplast ...

EW
Answered by Elsa W. Biology tutor
5917 Views

Assess the importance of the reasons for the increase in tensions between East and West between 1945 and 1949

Intro - short - introduce factors: ideology, personalities of big 3, Yalta and Potsdam, Germanyidentify reason you see as most important
Start with factor seen as least important eg, the issue of Ge...

BO
Answered by Branwen O. History tutor
2461 Views

Describe the process of Oxidative Phosphorylation in the light dependent stage of photosynthesis

Light that falls onto a photosystem excites two electrons in a chlorophyll molecule, causing the electrons to leave the molecule by Photoionization. These two electrons are absorbed by the thylakoid membr...

EM
Answered by Eleanor M. Biology tutor
4294 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