What measurement would the scientist need to take to calculate the area where no bacteria was growing?
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Card 7
Front
The scientist showed the results to the restaurant owner.
Both cleaning liquids cost the same per dm3.
Suggest one other factor the restaurant owner should consider when choosing which cleaning liquid to use.
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Card 8
Front
What is metabolism?
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Card 9
Front
One metabolic reaction is the formation of lipids. Give one other metabolic reaction in cells.
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Card 10
Front
A student made the following hypothesis about the heart rate of smokers and non-smokers during exercise.
"During exercise, the heart rate of smokers increases more than the heart rate of non-smokers."
Design an investigation that would allow you to test
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Card 11
Front
What is the circulatory system composed of?
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Card 12
Front
Urea is transported in the blood plasma.
Name two other substances transported in the blood plasma.
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Card 13
Front
Some athletes train at high altitude.
Training at high altitude increases the number of red blood cells per cm3 of blood.
Explain why having more red blood cells per cm3 of blood is an advantage to an athlete.
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Card 14
Front
Which two blood vessels carry deoxygenated blood?
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Card 15
Front
Compare the structure of an artery with the structure of a vein.
