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Biology
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Biology A-level: describing the action potential

At rest K+ that is going out of cell clamps the membrane potential negative (e.g. -70 mV)An external factor (e.g. synaptic activity) causes the membrane to depolarise slightly. If the voltage reaches thre...

AM
Answered by Abubakar M. Biology tutor
2570 Views

What is an autotroph?

An organism that produces its own food

WC
Answered by Will C. Biology tutor
2766 Views

What is a chloroplast?

A chloroplast is an organelle found in plant cells, otherwise known as the site of photosynthesis. It consists of a double membrane, thylakoids stacked into grana linked by lamellae, and a stroma which is...

DW
Answered by Darcy W. Biology tutor
2816 Views

Please explain what Photosynthesis is?

Photosynthesis is the process by which plants convert light energy into biochemical Energy. Energy used by cells is in the form of ATPPhotosynthesis is an essential processInvolves Chloroplasts of the Pla...

DA
Answered by Danny A. Biology tutor
2270 Views

Explain what causes the Bohr shift to occur, and give one situation in which this is useful.

The Bohr Shift describes the movement of the oxygen dissociation curve to the right of normal. This occurs due to increased levels of carbon dioxide, such as when a person increases their exercise level, ...

DP
Answered by Danielle P. Biology tutor
21314 Views

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