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Question
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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Solution
Yes. The other uncovered leave of the potted plant act as a control.
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Complete the following by filling in the blanks numbered 1 to 10 with the appropriate word/term:
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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.
Describe step by step, how the candidate proceeded to test the leaf for the presence of starch?
Choose the Odd One Out
Choose the correct option.
The net result of photo-oxidation of water is release of ______.
The chemical reaction occurs during photosynthesis is ______.
Where does the carbon that is used in photosynthesis come from?
The swollen basal part of the ______ pistil is the which bears the ______.
1. What happens to the dandelion flower
- During the daytime?
- At night?
2. What is the phenomenon known as?
