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Question
Distinguish between the following pairs on the basis of the word indicated in the bracket ( ).
Light reaction and Dark reaction (end products)
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Solution
| Light Reaction | Dark Reaction |
| Light energy is converted into chemical energy. ATP and NADPH2 are produced. No sugar formation. | ATP and NADPH2 are utilised for the fixation of carbon dioxide. |
| No sugar formation. | Sugar formation takes place. |
RELATED QUESTIONS
Choose the correct answer:
Energy is transformed from the light reaction to the dark reaction by _______________
Identify the false statement and rewrite it correctly by changing the first or last word only.
Dark reaction of photosynthesis occurs during night time.
The dark reaction of photosynthesis is known as ______.
Are the following statement true or false? Give a reason in support of your answer.
If a plant is kept in bright light all the 24 hours for a few days, the dark reaction (biosynthetic phase) will fail to occur.
Given below are five terms. Rewrite the terms in the correct order so as to be in logical sequence with regard to photosynthesis:
(i) water molecules, (ii) oxygen, (iii) grana, (iv) hydrogen and hydroxyl ions, (v) photons.
Why is it necessary to place a plant in the dark before starting an experiment on photosynthesis? Explain.
Describe the main chemical changes which occur during photosynthesis in a dark reaction.
The molecules of water split during ______.
The conversion of several glucose molecules into starch is termed as ______.
Define the following term:
Polymerisation
