ICSE Class X Biology 2023 Solved Papers
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A potted plant with variegated leaves was kept in dark for 24 hours and then placed in bright sunlight. Answer the following questions.
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Question : 67
Total: 74
After the starch test what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.
Solution:
The green parts of the leaf turns bluish black, showing the presence of starch.
Yellow part of the leaf turns brown in colour due to absence of starch.
Yellow part of the leaf turns brown in colour due to absence of starch.
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