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Describe the process of osmosis

Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration, through a partially permeable membrane.
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Answered by Aqsa A. • Biology tutor
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What are the effects of exercise on the body?

Exercise has both long term and short term effects on the body. Short term effects include increased heart rate, increased cardiac output (volume of blood pumped out by the heart each minute, increased strok...
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Answered by Emily H. • Biology tutor
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Explain how change in blood flow to a runner's muscles helps him to run.

An increase in blood flow to the skeletal muscles means that more glucose and oxygen is delivered to the muscles via the blood. These are both needed in aerobic respiration to produce ATP/ energy for muscle ...
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Answered by Susannah W. • Biology tutor
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Describe three ways in which the body maintains its temperature in different climates

The temperature of the body is detected by the thermoregulatory centre in the hypothalamus in the brain, which can detect the temperature of the blood. Therefore it recieves information about changes to the ...
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Answered by Victoria W. • Biology tutor
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Describe the process of breathing out.

Firstly, the intercostal muscles contract. This causes the ribcage to move upwards and outwards. The diaphragm also contracts. This all has the combined effect of increasing the volume of the lungs. As a res...
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Answered by Julia Z. • Biology tutor
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