Photosynthesis Quiz

What is the role of chlorophyll in photosynthesis?

• Reflects light energy and prevents it from reaching the plant

• Stores excess water and nutrients for the plant

• Regulates the temperature of the plant during photosynthesis

• Absorbs light energy and converts it into chemical energy

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List the steps of photosynthesis in the correct order.

• Light-independent reactions, light-dependent reactions

• Light-dependent reactions, Calvin cycle (light-independent reactions)

• Calvin cycle, light-dependent reactions

• Photosystem II, Photosystem I

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What are the products of photosynthesis?

• Methane and nitrogen dioxide

• Nitrogen and hydrogen

• Glucose and oxygen

• Carbon dioxide and water

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What are the reactants of photosynthesis?

• oxygen and nitrogen

• nitrogen and water

• carbon dioxide and water

• sugar and oxygen

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Explain the light-dependent reactions in photosynthesis.

• The process of light reaction involves the conversion of mechanical energy into chemical energy

• The process of light reaction involves the conversion of sound energy into chemical energy

• The process of light reaction involves the conversion of light energy into chemical energy in the form of ATP and NADPH.

• The process of light reaction involves the conversion of heat energy into chemical energy

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Describe the role of ATP and NADPH in photosynthesis.

• ATP and NADPH are used to break down glucose into carbon dioxide during photosynthesis.

• ATP and NADPH are only involved in the light-dependent reactions of photosynthesis.

• ATP and NADPH are not involved in photosynthesis at all.

• ATP and NADPH provide the energy needed to convert carbon dioxide into glucose during the light-independent reactions of photosynthesis.

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How does photosynthesis contribute to the oxygen cycle?

• Photosynthesis absorbs oxygen from the atmosphere.

• Photosynthesis converts carbon dioxide into nitrogen gas.

• Photosynthesis releases carbon dioxide into the atmosphere.

• Photosynthesis produces oxygen as a byproduct.

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Explain the significance of photosynthesis in the food chain.

• The food chain does not rely on photosynthesis for the production of food

• Photosynthesis has no significance in the food chain

• Photosynthesis is essential for producing food for the primary consumers, which are then consumed by the secondary consumers, and so on, forming the basis of the food chain.

• Photosynthesis only benefits the plants and has no impact on the food chain

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What is the overall chemical equation for photosynthesis?

• 8CO2 + 8H2O + light energy → C8H16O8 + 8O2

• 2CO2 + 2H2O + light energy → C3H6O3 + 2O2

• 6CO2 + 6H2O + light energy → C6H12O6 + 6O2

• 4CO2 + 4H2O + light energy → C4H8O4 + 4O2

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Discuss the factors that can affect the rate of photosynthesis.

• Light intensity, carbon dioxide concentration, temperature, and water availability

• Number of leaves, color of flowers, and size of the plant

• Amount of oxygen, pH level, and type of fertilizer

• Type of soil, wind speed, and humidity

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