Top answers

How do I revise for my English exam?

English exams can seem impossible to revise for, but that isn't the case. English exams can actually be the most fun to revise because it's less about remembering tonnes of specific facts and more about reme...
EP
8483 Views

Is respiration the same thing as breathing?

No, they are not the same (although they do both involve the respiratory system!). The key differences:Breathing is the process of moving air in and out of the lungs - like when you take a breath.Respiration...
RL
Answered by Rhiannon L. • Biology tutor
30596 Views

What is centripetal force?

For an object moving in a circular path, the centripetal force is any force which acts towards the centre of this circular path. This means it acts perpendicular to the direction of forward motion. It is imp...
BH
Answered by Ben H. • Physics tutor
9385 Views

How do I learn and memorise case studies?

Learning the facts of case studies can seem very daunting at the beginning - with all of the names, dates and facts and figures. But, really, it's no different to learning anything else! Here are my top tips...
PU
Answered by Paven U. • Geography tutor
12363 Views

What are the four levels of protein structure?

Primary - The sequence of amino acids in the Protein, defined by the DNA sequence coding for the protein. Secondary - Any folding or coiling within the protein which are stabilised by hydrogen bonds. The two...
TN
Answered by Theo N. • Biology tutor
6047 Views