2.9 IB Photosynthesis

The reactants of photosynthesis are...

• sugar and water.

• sugar and oxygen.

• carbon dioxide and water.

• carbon dioxide and oxygen.

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Which statement about photosynthesis is correct?

• Plants get the energy they need for photosynthesis from water

• Plants get the carbon they need to create glucose from the soil

• Plants get the carbon they need to create glucose from the air

• Plants do not require energy to perform photosynthesis

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What are the products of photosynthesis?

• Carbon dioxide and water

• Carbon dioxide and oxygen

• Glucose and oxygen

• Glucose and water

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What pigment absorbs sunlight for photosynthesis?

• chloroplast

• thylakoid

• grana

• chlorophyll

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Which of the following is the correct equation for PHOTOSYNTHESIS?

• 6CO₂ + 6H₂O → 6O₂ + C₆H₁₂O₆

• 6CO₂ + C₆H₁₂O₆ + 6H₂O → O₂

• 6O₂ + 6H₂O → 6CO₂ + C₆H₁₂O₆

• C₆H₁₂O₆+ 6O₂ → 6H₂O + 6CO₂

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Which gas is removed from the atmosphere during photosynthesis?

• hydrogen

• oxygen

• nitrogen

• carbon dioxide

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What is the function of NADPH and ATP?

• They absorb light

• They power the light-dependent reactions

• They are light-reflecting pigments

• They are short term energy carriers

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Where do the light-dependent reactions occur?

• thylakoid membrane

• stroma

• mesophyll

• mitochondria

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Which of the following is NOT a product of the light-dependent reactions?

• ATP

• NADPH

• Oxygen

• Glucose

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Which substance from the light-dependent reactions of photosynthesis is a source of energy for the light-independent reactions?

• ADP

• H2O

• NADPH

• pyruvic acid

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