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प्रश्न
A potted plant with variegated leafes was kept in dark for 24 hours and then placed in bright sunlight. Answer the following questions.
- Which aspect of photosynthesis is being tested in the above diagram?
- Why was the plant kept in the dark for 24 hours?
- After the starch test, what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.
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उत्तर
- Photosynthesis requires chlorophyll.
- To make sure there was no starch on the leaves, the plant was maintained in the dark.
- Leaf A's green portion turns blue-black and its pale yellow portion turns brown following the starch test. using the solution of iodine.
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संबंधित प्रश्न
Give appropriate biological/technical terms for the following:
An apparatus that measures the rate of water uptake in a cut shoot due to transpiration.
Choose the correct answer:
Photosynthesis is more active in ___________
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Is there any control in this experiment? If so, state it.
Give technical term:
The form of energy is converted into chemical energy during photosynthesis.
Write the functional activity of the following structure:
Chloroplasts
The green pigment present in the plant is ______.
What is photosynthesis and wherein a cell does occur?
Give an example for micronutrients.
Guard cells of stomata are green but cannot photosynthesize? Give reason.
