Top answers

Biology
GCSE

Describe why diffusion is important in plants and animals

Diffusion is the movement of gases across a partially permeable membrane from a high concentration to a low concentration and is important to allow the movement of substances across cell membranes. For ex...

Answered by Lucy D. Biology tutor
29104 Views

How does the heart pump oxygen around the body?

Our heart can be divided into a left and right side, each containing two chambers: an atrium and a ventricle. Low pressure blood flows into the atria and is pumped out of the ventricles (high pressure); t...

Answered by Ella B. Biology tutor
3163 Views

What happens to the diaphragm during inspiration?

Diaphragm contracts which causes it to move downwards/become flatter

Answered by Will H. Biology tutor
2293 Views

What are the main differences between aerobic and anaerobic respiration

Aerboic respiration requires oxygen wheras anaerboic respiration does not. Because of this, glucose does not fully break down, resulting in there being much less energy produced. The end products are also...

Answered by Samuel H. Biology tutor
9339 Views

Explain what a synapse is and explain how information passes across a synapse

A synapse is a junciton between neurones. Information is passed across a synapse when a chemical neurotransmitter is released from one neurone across the synpase to the next neurone causing an electrical ...

Answered by Autumn L. Biology tutor
2974 Views

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