Biology for IGCSE & O level - Respiration (Section 3 - No. 16)
Why is it important to keep the apparatus at a constant temperature when investigating the effect of temperature on respiration in yeast?
To ensure the yeast has enough oxygen.
To ensure the yeast has enough glucose.
To control the rate of enzyme reactions.
To prevent the production of carbon dioxide.
Explanation
Temperature affects the rate of enzyme-controlled reactions in respiration, so keeping the temperature constant ensures the results are only due to the temperature change and not another change.
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