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At a neuromuscular junction , an impulse arrives, causing Ca 2+ to be released from the sarcoplasmic reticulum of your muscle cell (a system of membrane bound organelles around myofibril). 1. Ca 2+ diffuses ...

Revising for an English exam is difficult as there isn’t a simple list of facts or formulas to memorise and being creative within a time limit is tough. However, being prepared for the exam and knowing what ...

Unseen poetry is one of the hardest parts of English Literature as the lack of focused preparation can be daunting. However, revision will still make a huge difference to your mark as recognising common feat...

Planning is a crucial stage of essay writing as it ensures that everything you need to say is covered somewhere in your essay. Allocating a few minutes at the beginning of an exam to do a rough outline will ...

This is a straightforward question that is pretty fundamental to how we understand modern politics, so try not to be caught out by the terminology. The best way I like to think about negative and positive li...