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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
Name the following:
Three organisms that cannot prepare their own food by photosynthesis.
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis results in a gain in dry weight.
"Oxygen is a waste product of photosynthesis." Comment.
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.
What aspect of photosynthesis was being investigated?
Explain the Term Calvin Cycle.
Name the following:
The immediate product of photosynthesis.
Complete the following sentence with appropriate word:
A light reaction is a ___________ reaction.
Choose the Correct Answer:
NADP is expanded as
Where do the light-dependent reaction and the Calvin cycle occur in the chloroplast?
When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.
