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ICSE Class 10 Biology Question 18 of 30

Solved 2024 Specimen Paper ICSE Class 10 Biology — Question 13

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Question

Question 5(iii)

A potted plant having variegated leaves was exposed to sunlight for 3 hours. One of the leaves was plucked and tested for starch. What will be your observation after the starch test?

Answer

After conducting the starch test, the green leaf portion turns blue, indicating starch presence, confirming photosynthesis due to chlorophyll. Non-green parts lack chlorophyll, don't photosynthesize, and show no starch-related colour change.