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Explain how chemical transfer across a synapse occurs.

The nerve impulse will reach the end of the presynaptic neuron, where voltage-gated calcium channels are opened due to depolarisation. Calcium ions then diffuse into the presynaptic neuron, resulting in vesi...
OS
Answered by Olivia S. • Biology tutor
2337 Views

How can I make my personal statement unique?

This sounds like quite a hard thing to do in 4000 characters. My advice would be to focus on the personal development you gained from doing various things. Like if you had a job don't just say you waited tab...
DD
2526 Views

Solve ∫(x+2)/(2x^2+1)^3 dx

Since (x+2)/(2x 2 +1) 3 can't be easily simplified into a more straightforward integral, we have to rely on some more advanced integration methods. Before trying things like substitution, or integration by p...
JM
Answered by Jack M. • Maths tutor
6570 Views

Explore the ways in which money and transaction shape identity in Great Expectations

Introduce your answer clearly and concisely. Address the question and outline your texts, making sure your line of argument is coherent. Dickens' Great Expectations is a text undeniably concerned with the id...
JL
Answered by Joshua L. • English tutor
3107 Views

A curve is given by the equation y = (1/3)x^3 -4x^2 +12x -19. Find the co-ordinates of any stationary points and determine whether they are maximum or minimun points.

Stationary points - dy/dx =0dy/dx = x 2 -8x +12 ( differentiating- early a level skill). Solving x 2 -8x +12=0 gives x=6, x=2 (solving quadratics- gcse skill). Subbing these values back into the original equ...
JC
Answered by Joseph C. • Maths tutor
3707 Views