In an experiment to investigate a factor affecting photosynthesis a potted plant was kept in the dark overnight and then exposed to sunlight with the...

In an experiment to investigate a factor affecting photosynthesis a potted plant was kept in the dark overnight and then exposed to sunlight with the leaf covered in a transparent flask containing sodium hydroxide pellets
a)Why was the potted plant kept in the dark?
b)State the factor being investigated in the experiment
c)State the results obtained in the leaf
d)Explain the results

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a)The potted plant was kept in the dark to enable the plant to use all the starch
b)The factor being investigated is the necessity of carbon (IV) oxide in photosynthesis
c)The leaf retained the brown colour of iodine
d)Sodium hydroxide pellets absorbed all the carbon (IV) oxide in the flask therefore no photosynthesis occurred and no starch was produced

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Chiry answered the question on November 7, 2017 at 19:13

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