Unit 2 Practice Test

What is the primary function of photosynthesis in plants?

• To produce oxygen

• To convert light energy into chemical energy

• To absorb carbon dioxide

• To release water vapor

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DOK Level 1: Recall

Which of the following is a product of cellular respiration?

• Glucose

• Oxygen

• Carbon dioxide

• Light energy

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DOK Level 1: Recall

Explain how photosynthesis and cellular respiration are interconnected in the cycling of matter.

• Photosynthesis produces glucose and oxygen, which are used in cellular respiration to release energy.

• Photosynthesis and cellular respiration are unrelated processes.

• Cellular respiration produces glucose, which is used in photosynthesis.

• Photosynthesis releases carbon dioxide, which is used in cellular respiration.

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DOK Level 2: Skill/Concept

Which organelle is primarily involved in the process of photosynthesis?

• Mitochondria

• Ribosome

• Chloroplast

• Nucleus

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DOK Level 1: Recall

Describe the role of chlorophyll in photosynthesis.

• It absorbs light energy to drive the process of photosynthesis.

• It stores energy in the form of ATP.

• It transports water throughout the plant.

• It releases oxygen into the atmosphere.

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DOK Level 2: Skill/Concept

How does cellular respiration contribute to the flow of energy in a cell?

• It converts glucose into ATP, providing energy for cellular activities.

• It absorbs sunlight to produce glucose.

• It stores energy in the form of glucose.

• It releases oxygen for photosynthesis.

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DOK Level 2: Skill/Concept

Analyze the impact of a decrease in photosynthesis on the energy flow within an ecosystem.

• It would increase the amount of oxygen available.

• It would decrease the energy available to consumers.

• It would have no effect on the ecosystem.

• It would increase the production of glucose.

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DOK Level 3: Strategic Thinking

What is the main purpose of cellular respiration in cells?

• To produce glucose

• To generate ATP

• To release oxygen

• To absorb carbon dioxide

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DOK Level 1: Recall

Compare the roles of photosynthesis and cellular respiration in the carbon cycle.

• Photosynthesis releases carbon dioxide, while cellular respiration absorbs it.

• Both processes release carbon dioxide into the atmosphere.

• Photosynthesis absorbs carbon dioxide, while cellular respiration releases it.

• Both processes absorb carbon dioxide from the atmosphere.

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DOK Level 2: Skill/Concept

Evaluate the statement: "Without photosynthesis, cellular respiration would not occur."

• True, because photosynthesis provides the glucose needed for cellular respiration.

• False, because cellular respiration can occur without photosynthesis.

• True, because photosynthesis provides the oxygen needed for cellular respiration.

• False, because cellular respiration does not depend on photosynthesis.

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DOK Level 3: Strategic Thinking