A variegated leaf with green and yellow patches in used for an experiment to prove that chlorophyll is required for photosynthesis. Before the experiment the green portions (A), and the pale yellow portions (B), are observed. What will be the color of ‘A’ just before and after the starch test? Also write the equation of photosynthesis and mark, as well as validate from which molecule the by-product is obtained.
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- before the starch test,
the colour of leaf will be pale yellow Becoz chlorophyll is removed before test.
- after the test,
color will be black - blue due to reaction between iodine and starch. - by product is oxygen and it is obtained from H2O.
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