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Biology
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What is diffusion? Provide an example of this process in a biological system.

Diffusion refers to the process where particles (molecules and ions) move from an area of high concentration to an area of lower concentration. I would draw a diagram of ...

EH
Answered by Elizabeth H. Biology tutor
2646 Views

Can you name the 3 different energy systems and give an example when each would be used?

Atp/pc system- ATP is hydrolysed into ADP + Pi, the free phosphate is used in exercises of 2-10s such as a powerlift.Anaerobic energy system- Glucose is the fuel for energy of glycolysis- used in exercise...

SG
Answered by Seb G. Biology tutor
2983 Views

What is the general structure of an animal cell?

An animal cell consists of many sub-cellular structures that allow it to live and function as part of the animals body. The cell consists of a cell membrane which houses all the cells components. Because ...

MC
Answered by Megan C. Biology tutor
3046 Views

When a nerve impulse arrives at a synapse, it causes the release of neurotransmitter from vesicles in the presynaptic knob. Describe how.

When the action potential arrives at the presynaptic end of the neurone or nerve ending, the influx of ions along the axon body results in the depolarisation of the nerve cell and the presynaptic membrane...

PA
Answered by Philip A. Biology tutor
2978 Views

Explain how cystic fibrosis affects digestion, gas exchange and reproduction.

Background information I would give to the student: This question is a perfect example which shows that if you really understand the topic, it becomes easier to remember the facts for the questions relati...

SG
Answered by Shaswath G. Biology tutor
9069 Views

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