A potted plant with variegated leaves was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours and then placed in bright sunlight for a few hours. Observe the diagram and answer the questions.
(iv)What will be the result of the starch test performed on leaf 'A' shown in the diagram? Give an example of a plant with variegated leaves.
A potted plant with variegated leaves was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours and then placed in bright sunlight for a few hours. Observe the diagram and answer the questions.
(iv)What will be the result of the starch test performed on leaf 'A' shown in the diagram? Give an example of a plant with variegated leaves.
- A variegated leaf plant is taken for this experiment to prove the necessity of chlorophyll for photosynthesis.
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Variegated leaves have green parts (where cells contain chlorophyll) and non-greenish parts (where there is no chlorophyll).
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Only the parts that were green become blue-black with iodine solution, showing the importance of chlorophyll in photosynthesis.
-
The parts without chlorophyll do not photosynthesize, and so they do not make starch and the iodine does not change colour.
-
Examples of variegated leaves include, Croton, Coleus, and more.
- A variegated leaf plant is taken for this experiment to prove the necessity of chlorophyll for photosynthesis.
-
Variegated leaves have green parts (where cells contain chlorophyll) and non-greenish parts (where there is no chlorophyll).
-
Only the parts that were green become blue-black with iodine solution, showing the importance of chlorophyll in photosynthesis.
-
The parts without chlorophyll do not photosynthesize, and so they do not make starch and the iodine does not change colour.
-
Examples of variegated leaves include, Croton, Coleus, and more.
