Page 13 - Chapter 07

Post Lab. 1. In the experiment for the necessity
Activities
of light, you wrapped a black paper BRAIN TEASERS

around the leaf. Apart from cutting

off the light from part of the leaf, what • Why large quantities of

other effects might the black paper have on fertilizers should not

the leaf which could influence the results? be added to the soil?

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2. What was the relationship between the distribution of chlorophyll in
the variegated leaf and the distribution of starch revealed by iodine?

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3. Assuming that the accumulation of starch in a leaf is evidence of
photosynthesis, make a general statement about photosynthesis and
carbon dioxide.

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