Observe the following figures:
Both the plants ‘A’ and ‘B’ were kept in sunlight after watering. The part of the leaf of plant ‘B’ which was inserted in the glass bottle containing KOH (Potassium hydroxide) did not turn blue in the iodine test/ starch test, indicating the absence of starch. The part of the leaf outside the bottle turns blue in the said test. Photosynthesis didn’t occur in that part of the leaf due to the non-availability of _____________ .
a) Sunlight b) Chlorophyll
c) CO2 d) Water
(i) List out the factors which are available to the part of the leaf outside the bottle.
Covered part of the leaf doesn’t show photosynthesis because of the absence of carbon dioxide.
Factors which were available to the other part which was outside the bottle were – Carbon dioxide, sunlight and adequate temperature required for the process of photosynthesis.
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