FBISE, NCP & NBF-aligned resources for Classes 9–12
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Biology Chapter 7 : Topic 6
ATP as Energy Currency
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What is photosynthesis?
Reasoning: Photosynthesis is the process in which plants use sunlight, CO₂ and water to produce glucose.
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The main site of photosynthesis in plants is:
Reasoning: Leaves contain chloroplasts where photosynthesis occurs.
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Which pigment is responsible for trapping sunlight?
Reasoning: Chlorophyll absorbs light energy for photosynthesis.
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Which gas is taken in during photosynthesis?
Reasoning: Plants absorb CO₂ through stomata.
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Which gas is released during photosynthesis?
Reasoning: Oxygen is a by-product of photosynthesis.
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Water required for photosynthesis is absorbed by:
Reasoning: Roots absorb water from soil.
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Photosynthesis mainly takes place in which cell organelle?
Reasoning: Chloroplast contains chlorophyll and is the site of photosynthesis.
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The correct word equation for photosynthesis is:
Reasoning: This is the standard photosynthesis equation.
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Sunlight energy is converted into:
Reasoning: Light energy is stored in glucose as chemical energy.
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Which structure allows CO₂ to enter the leaf?
Reasoning: Stomata are pores for gas exchange.
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What is the primary product of photosynthesis?
Reasoning: Glucose is the main food produced.
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Which of the following is NOT required for photosynthesis?
Reasoning: Oxygen is released, not required.
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Why are leaves usually green?
Reasoning: Chlorophyll pigment gives green color.
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Which process converts glucose into starch in plants?
Reasoning: Plants store glucose as starch.
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Photosynthesis is important because it:
Reasoning: Oxygen released is essential for respiration.
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