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Explain how an action potential is transmitted across a cholinergic synapse.

The action potential arrives at the synaptic knob of the presynaptic neurone. The action potential stimulates the opening of voltage-gated calcium ion channels in the presynaptic neurone, allowing calcium io...
KE
Answered by Kathryn E. • Biology tutor
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How do you work out the circumference and area of a circle?

When working with circles we use which is a number that stays the same no matter how big the circle. The number starts with 3.1415.... and goes on forever, this number is programmed into the calculator, so w...
NV
Answered by Nina V. • Maths tutor
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'Rebellions before 1550 were primarily driven by religious discontent.' Assess the validity of this view.

Introduction: Early before 1550, the church played a major role in maintaining order in society and provided the outward structures of community life. The turning point for religious order was in Henry VIII’...
CS
Answered by Claudia S. • History tutor
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If f(x)=(4x^2)-(8x)+3, find the gradient of y=f(x) at the point (0.5,0)

When you see the question asking you to find the gradient at a point in the curve, the first thing you have to do is differentiate . This is because when we differentiate, we find the equation of the tangent...
GK
Answered by Girthanaah K. • Maths tutor
7197 Views

Describe how a sperm cell is adapted to its role

Contains enzymes to digest egg cell wallFull of mitochondria to supply energy for movementtail for swimming Sperm contains generic material to transfer to the egg
RJ
Answered by Rachelle J. • Biology tutor
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