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 Form 3 Biology growth and development questions and answers

The diagram below shows an experimental set up to investigate an aspect of germination.
figgrowth17620201230.JPG
(a) Why sodium hydroxide pellets used in this experiment?
(b) Why is moist cotton wool used in this experiment?
(c) (i) By means of an arrow, indicate on the diagram the direction in which red dye would move during the experiment.
(ii) Give reasons for your answer in (c) (i) above.

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