Top answers

Why do we use the n+1 rule in proton NMR?

The n+1 rule is used to describe the relationship between peak splitting and the number of protons a particular proton is coupled to - that is, how many protons are attached to the carbons next to the carbon...
DR
Answered by Daisy R. • Chemistry tutor
11182 Views

Explain the formation of an action potential.

The change from resting potential to action potential is caused by the stimulation of a recpetor , this causes a chain reaction which eventually leads to a positive environement inside the cell. An change in...
MT
Answered by Molly T. • Biology tutor
3156 Views

Explain how anti-diuretic hormone (ADH) is released and acts on cells in the collecting duct wall?

Osmoreceptors in the hypothalamus detect a change in the water potential of blood, this stimulates neurosecretory cells to make and release ADH. ADH travels down the axon to the terminal bulb in the posterio...
CB
Answered by Claire B. • Biology tutor
5527 Views

What is First Past the Post and why has it been criticised?

First Past the Post is an electoral system used in countries such as the USA and the UK to elect representatives. It works in a very simple way: the candidate who recieves the most votes wins. So, for exampl...
BG
Answered by Benjy G. • Politics tutor
3493 Views

Explain the term 'direct democracy' (5)

Direct democracy involves people power, or the self-government of people, contrasting to a representative democracy by which representatives are elected in order to voice the opinions and interests of citize...
AR
4318 Views