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 Form 1 Biology Nutrition in Plants Questions and Answers

In an investigation, equal amounts of water was placed in three test tubes labeled G, H and J. pondweeds of equal length were dropped in each test tube. The test tubes were then placed in identical conditions of light and carbon (IV) oxide at different temperatures for five minutes.
After five minutes, the bubbles produced in each were counted for one minute. The results were as shown in the table below.
fignutritionplants15520201155.JPG
(i) Name one requirement for this process that is not mentioned in the investigation.
(ii) Name the gas produced in this investigation.
(iii) Account for the results in test tubes H and J.

 (5m 1s)
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