Photosynthesis and Respiration Practice Test

What does the 10% Rule in energy transfer between trophic levels state?

• Only 10% of energy is lost as heat during metabolic processes.

• 10% of the energy from one trophic level is available to the next level.

• 10% of the total energy in an ecosystem is used for photosynthesis.

• 10% of energy is stored in the form of ATP during cellular respiration.

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What is the overall goal of photosynthesis?

• to use solar energy to make glucose

• To use solar energy to make ATP

• To break down glucose to make ATP

• To break down glucose to make carbon dioxide and water

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How many pyruvate molecules are derived from each molecule of glucose in the process of glycolysis?

• 1

• 2

• 3

• 4

Which molecule is primarily produced during the electron transport chain in cellular respiration?

• NADH

• FADH₂

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The ultimate source of energy for nearly all living things on earth is (a)   .

• The sun

• Photosynthesis

• Chemosynthesis

• Plants

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In aerobic metabolism, what is the final end product of the electron transport chain?

• lactic acid

• water

Which of the following is a product of photosynthesis?

• water.

• oxygen.

• glucose.

• NADPH

• If none of the above meet the criteria of the question, choose this response.

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Explain the significance of ATP in both photosynthesis and cellular respiration.

• ATP is a waste product in both processes.

• ATP serves as the main energy currency for cellular activities in both processes.

• ATP is only produced during photosynthesis.

• ATP is used exclusively in cellular respiration.

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What role does oxygen play in the electron transport chain during aerobic respiration?

• It initiates glycolysis.

• It serves as the final electron acceptor.

• It is involved in the Krebs cycle.

• It is produced during photosynthesis.

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What is the total number of ATP molecules produced during glycolysis, the Krebs Cycle, and the Electron Transport Chain combined?

• 2 ATP

• 36-38 ATP

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