Top answers

Biology
A Level

How is an Action Potential produced in a neurone?

It is all to do with the movement of ions in and out of the neurone cell, which changes the potential difference accross the cell's membrane. 

- In a neurone's resting state, the inside o...

LS
Answered by Lucy S. Biology tutor
3729 Views

Describe what is meant by photoperiodism

A response controlled by relative light and dark periods. The name of the receptors responsible for absorbing light are phytochromes. The photoperiodic stimulus is detected by the 

AO
Answered by Amy O. Biology tutor
5517 Views

Could you run through the stages in the light-independent reaction (Calvin Cycle) of photosynthesis?

Okay, so here we have what seems like a very daunting​ list of chemical reactions to remember that don't seem to make any sense! But don't worry​, with practice you wi...

SC
Answered by Shane C. Biology tutor
2941 Views

Describe the process of translation

Translation takes place on ribsomes, which can be found on the rough endoplasmic reticulum (ER) or within the cytoplasm. 

Once the mRNA has been exported from the nucleus it binds to a ri...

AM
Answered by Amy M. Biology tutor
8294 Views

Explain the difference in the speed of conduction of an action potential along the length of a myelinated neurone and a non-myelinated neurone.

First, we need to explain how the action potential is conducted along the length of the axon.

An action potential is transferred along an axon by the movement of Na+...

CH
Answered by Catherine H. Biology tutor
7763 Views

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