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Describe the function of carrier proteins in a cell surface membrane

Carrier proteins are involved in the facilitated diffusion to move ions from a high concentration to a low concentration. They are also involved in the active transport of ions against the concentration g...

Answered by Jasmine B. • Biology tutor

13038 Views

How should the form of a poem influence my reading?

This question comes up a lot with students who will tell you that they don't "get" poetry, and don't like to read it on their own time. The answer is that poets didn't choose to write their thou...

Answered by Anna M. • English Literature tutor

3796 Views

How did jazz influence mainstream music in Europe and America? [How to approach and introduce this question]

Conceptions of jazz culture and music that began to develop at the very beginning of the twentieth century both in the US and in Europe have had significant repercussions for directions taken not just in ...

Answered by Freddie R. • Music tutor

3656 Views

Using the identity cos(A+B)= cosAcosB-sinAsinB, prove that cos2A=1-2sin^2A.

Use cos(A+B)=cosAcosB-sinAsinB and let A=B so cos(A+A)=cosAcosA-sinAsinA this means cos(2A)=cos²A-sin²A and since cos²A+sin²A=1, cos²A=1-sin²

Answered by Rebecca F. • Maths tutor

21779 Views

Describe the events that occur at synaptic junction that result in an action potential in the post synaptic membrane.

An action potential arrives at the pre synaptic membrane which initiates the opening of Ca2+ channels. The influx of Ca2+ ions will cause vesicles containing neurotransmitters to fuse with the pre-synapti...

Answered by Samantha B. • Biology tutor

3753 Views