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Describe the events that take place at the synapse that enable transmission of a nerve impulse.

An action potential arrives at the synapse, triggering Ca2+ channels to open. This in turn triggers vesicles holding neurotransmitter to fuse with the presynaptic membrane, releasing the neurotransmitter ...

SA
Answered by Shrinivas A. Biology tutor
19506 Views

State and explain the effect of the following on the rate of a reaction: a) increasing temp b) increasing pressure c) increasing concentration of ONE reactant d) adding a catalyst. In each case state what will happen to the rate constant, k.

a)         will increase

            greater collision energy

            so greater chance of activation energy being exceeded

            so greater fraction of successful collision...

JP
Answered by Joseph P. Chemistry tutor
4562 Views

How do I know whether or not I should use the subjunctive mood after "que"?

The subjunctive mood is by definition a way of speaking that shows the speaker's personal attitude towards what they're saying. I'm sure that the textbook you're using explains all the basic situations wh...

JM
Answered by Jakub M. French tutor
2494 Views

"Tragic protagonists are entirely unsympathetic." Discuss this view in light of a play you have studied

Shakespeare's Macbeth is an archetypal tragic protagonist. He possesses a harmartia, a fatal flaw, that outweighs his better qualities and leads him to an irrevocable downfall. In spite of his talent as a...

DK
4091 Views

What is a deontelogical theory?

A deontelogical theory is essentially an ethical theory that highlights the intrinsic worth of our actions, as opposed to the consequences our actions bring. In other words, whilst some actions may bring ...

TD
2195 Views

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