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प्रश्न
Why should the light-dependent reaction occur before the light-independent reaction?
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उत्तर
During light-dependent reaction, photosynthesis pigment absorbs the light energy and convert it into chemical energy ATP and NADPH2.
During light-independent CO2 is reduced into carbohydrates with the help of ATP and NADPH2 produced during the light-dependent reaction.
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संबंधित प्रश्न
Differentiate between the following pairs on the basis of what is indicated in the brackets.
Leaf and Liver [form in which glucose is stored]
Complete the following by filling in the blanks numbered 1 to 10 with the appropriate word/term:
Photosynthesis involves light reaction and dark reaction. During light reaction, the chlorophyll present in the (1) ______ gets activated by absorbing light energy. This energy splits (2) ______ molecules to (3) ______ and oxygen and releases two electrons. This process is called (4) ______. The (5) ______ ions are picked up by NADP to form (6) ______. The ADP is converted to (7) ______. This process is called (8) ______. During the dark phase, the compound produced at the end of the light reaction reacts with carbon dioxide to form (9) ______. This product is converted to starch. The process is called (10) ______.
Are the following statement true or false? Give a reason in support of your answer.
The rate of photosynthesis continues to rise as long as the intensity of light rises.
Give some adaptations in green leaf photosynthesis.
Name the following:
The immediate product of photosynthesis.
Complete the following sentence with appropriate word:
A plant that does not perform photosynthesis is _______.
Write the functional activity of the following structure:
Thylakoids
Choose the correct option.
In presence of high concentration of oxygen, RuBP carboxylase converts RuBP to ______.
Higher Order Thinking Skill.
Imagine that student A studied the importance of certain factors in photosynthesis. He took a potted plant and kept it in dark for 24 hours. In the early hours of the next morning, he covered one of the leaves with dark 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?
- Why was the plant kept in the dark before the experiment?
- How will you prove that starch is present in the leaves?
- Name the raw materials needed for photosynthesis.
The source of O2 liberated in photosynthesis is ______.
