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- Introduction to Photosynthesis Process: Light and Dark Reaction MCQ - Practice Questions with Answers
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13 Questions around this concept.
Solve by difficulty
EASYSplitting of water occurs during _____ in the _______ of grana.
Which pigment acts directly to convert light energy to chemical energy?
Concepts Covered - 1
Introduction to the Reactions of Photosynthesis
- Photosynthesis is a two-step process.
- The following reactions are involved in the process:
- Light Reaction
- Dark Reaction
Light Reaction:
- It occurs in the grana.
- Grana contain packets of chlorophyll called quantasomes. Each quantasome contains 230 molecules of chlorophyll.
- Solar energy is trapped by chlorophyll.
- Splitting of water or photolysis of water occurs.
- Oxygen is released.
- ATP is produced in the process called photophosphorylation.
- NADP is reduced to form NADPH.
- It is depicted by Hill’s Reaction.
Dark Reaction:
- It occurs in the stroma of the chloroplast.
- Glucose is formed using carbon dioxide, ATP for energy, and NADPH as reducing power.
- It is also called the Calvin cycle.
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Introduction to the Reactions of Photosynthesis
Elementary Biology Vol 1
Page No. : U4-96
Line : 23
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