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प्रश्न
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.
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उत्तर
Yes. The other uncovered leave of the potted plant act as a control.
संबंधित प्रश्न
Name the following:
The products that are formed as a result of 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.
How does carbon dioxide return to the atmosphere? Explain.
A student in order to study the importance of certain factors of photosynthesis took a potted plant and kept it in the dark for over 24 hours. Then in the early hours of the morning the student covered one of the leaves with black paper in the centre only. Student placed the potted plant in the sunlight for a few hours, and then tested the leaf which was covered with black paper for starch.
(i) What aspect of photosynthesis was being investigated?
(ii) Is there any control in this experiment? If so, state the name.
(iii) Why was the plant kept in the dark before the experiment?
(iv) Describe step by step how the candidate proceeded to test the leaf for the presence of starch.
Choose the correct answer:
In a typical leaf, photosynthesis occurs mainly in ___________
Choose the correct answer:
Which of the following gas is used in photosynthesis?
The production of starch, and not glucose, is often used as a measure of photosynthesis in leaves because
During photosynthesis, the oxygen in glucose comes from
What is the importance of photosynthesis in the life of the following:
Animals
Write the functional activity of the following structure:
Chloroplasts
