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What happens during an action potential?

Action potentials are how nerve impulses travel along nerve cells/neurones. At rest a neurone has a membrane potential of -70mV which is maintained by the action of sodium potassium pumps in the plasma me...

Answered by Emily B. • Biology tutor

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Solve 2sin2θ = 1 + cos2θ for 0° ≤ θ ≤ 180°

sin2θ = 2sinθcosθ (double angle formula for sine)cos2θ = cos²θ - sin²θ (double angle formula for cosine) = 2cos²θ - 1 (utilising the trignometric identit...

Answered by Samuel N. • Maths tutor

12628 Views

How should I struture my response to an essay question?

Any essay should have an Introduction, Conclusion and Thematic Sections in between where the main body of the essay will be. In the introduction you should lay out the Context of the question (perhaps aid...

Answered by Jamie P. • History tutor

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How does antibiotic resistance arise and how can resistance spread?

i. How does antibiotic resistance arise? antibiotic resistance = bacteria that cannot be treated with antibiotics resistance arises when bacterial genes mutate (=a change in base s...

Answered by Keemia A. • Biology tutor

3276 Views