1.

When asked to set up an experiment to show that ‘light is necessary for photosynthesis’, a student ran to the school garden and set up the experiment by using a plant growing in the school garden. The experiment failed. His classmates made the following suggestions to get success in the experiment:Student A : Safranin should be used instead of iodineStudent B : The leaf should not be boiled in alcohol to remove chlorophyll before testing for starchStudent C : Transparent paper should be used instead of black paper strip.Student D : The leaf should be destarched before starting the experimentThe correct suggestion is given by :(1) student A(2) student B(3) student C(4) student D

Answer» When asked to set up an experiment to show that ‘light is necessary for photosynthesis’, a student ran to the school garden and set up the experiment by using a plant growing in the school garden. The experiment failed. His classmates made the following suggestions to get success in the experiment:

Student A : Safranin should be used instead of iodine

Student B : The leaf should not be boiled in alcohol to remove chlorophyll before testing for starch

Student C : Transparent paper should be used instead of black paper strip.

Student D : The leaf should be destarched before starting the experiment

The correct suggestion is given by :

(1) student A

(2) student B

(3) student C

(4) student D


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