Same chapter3 marksDifficulty: Medium
Describe an experiment to show that light is necessary for photosynthesis.
Photosynthesis
3 marksDifficulty: Medium
Distinguish between the light reaction and the dark reaction of photosynthesis.
Original Khojo Papers practice question — not from a past board paper.
Answer
The light reaction takes place in the grana of the chloroplast, needs light, and splits water to give oxygen, ATP and NADPH. The dark reaction takes place in the stroma, does not itself need light, and uses the ATP and NADPH to reduce carbon dioxide to carbohydrate.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The dark reaction is also called the Calvin cycle and it depends on the products of the light reaction.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
Describe an experiment to show that carbon dioxide is necessary for photosynthesis.
Photosynthesis
Same chapter3 marksDifficulty: Medium
Why is photosynthesis called the most important process on earth?
Photosynthesis
Same chapter3 marksDifficulty: Medium
How is a leaf adapted for photosynthesis?
Photosynthesis
Same chapter3 marksDifficulty: Medium
State three factors that limit the rate of photosynthesis.
Photosynthesis
Same chapter3 marksDifficulty: Medium
What is the compensation point?
Photosynthesis