9B Photosynthesis and Cellular Respiration

Which statement accurately describes the energy needs for photosynthesis and cellular respiration?

• solar energy is needed for cellular respiration but not for photosynthesis

• chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis

• chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration

• solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration

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Which statement explains how producers are dependent upon consumers for their survival?

• consumers supply oxygen for producers to undergo aerobic respiration

• consumers produce carbon dioxide for producers to use during photosynthesis

• consumers provide chemical energy needed by producers for cellular respiration

• consumers make lactic acid that producers use in photosynthesis

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Photosynthesis and cellular respiration both involve the use and release of gases. Which statement correctly identifies the role of gases in the two processes?

• photosynthesis and cellular respiration both use carbon dioxide and release oxygen

• photosynthesis and cellular respiration both use oxygen and release carbon dioxide

• cellular respiration used oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen

• cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide

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Which statement best describes the relationship between the products of photosynthesis and the reactants in cellular respiration?

• the products of photosynthesis serve as the reactants in cellular respiration to provide chemical energy

• the products of photosynthesis combine with the reactants in cellular respiration to remove ATP from cells

• the products of photosynthesis inhibit the reactants in cellular respiration in the presence of light.

• the products of photosynthesis change the structure of the reactants in cellular respiration in the presence of light

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Diatoms are one of the most common types of phytoplankton in marine habitats. Like plants, diatoms contain chlorophyll and produce glucose from which of the following?

• O₂ and ATP

• CO₂ and O₂

• ATP and H₂O

• CO₂ and H₂O

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Most plant leaves take in more carbon dioxide as light increases. They give off carbon dioxide if light intensity is too low. The graph shows a plant's carbon dioxide levels at different light intensities. At point X, the rate of which process is equal to the rate of photosynthesis?

• cellular respiration

• transpiration

• growth

• reproduction

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Which of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?

• the cellular-respiration diagram would show electromagnetic waves as the final product

• the cellular-respiration diagram would show glucose as the main source of energy

• the cellular-respiration diagram would show energy stored in large protein molecules

• the cellular-respiration diagram would show water as the main source of chemical energy

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