Multiple Choice
Which term best describes the total rate of photosynthesis occurring in a given area over a specific period of time?
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9. Photosynthesis
Introduction to Photosynthesis
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which substance is required by plants for photosynthesis and is released into the environment by animals as a waste product?
A
Glucose ($\mathrm{C_6H_{12}O_6}$)
B
Oxygen ($\mathrm{O_2}$)
C
Nitrogen ($\mathrm{N_2}$)
D
Carbon dioxide ($\mathrm{CO_2}$)
Verified step by step guidance1
Step 1: Begin by understanding the process of photosynthesis. Photosynthesis is the process by which plants convert light energy into chemical energy, using carbon dioxide ($\mathrm{CO_2}$) and water ($\mathrm{H_2O}$) to produce glucose ($\mathrm{C_6H_{12}O_6}$) and oxygen ($\mathrm{O_2}$).
Step 2: Recognize the role of carbon dioxide ($\mathrm{CO_2}$) in photosynthesis. It is one of the key reactants that plants absorb from the environment to synthesize glucose during the Calvin cycle.
Step 3: Understand the relationship between animals and plants. Animals release carbon dioxide ($\mathrm{CO_2}$) as a waste product during cellular respiration, which is then utilized by plants for photosynthesis.
Step 4: Eliminate the incorrect options. Glucose ($\mathrm{C_6H_{12}O_6}$) is a product of photosynthesis, not a required substance. Oxygen ($\mathrm{O_2}$) is also a product of photosynthesis, and nitrogen ($\mathrm{N_2}$) is not directly involved in the photosynthesis process.
Step 5: Conclude that carbon dioxide ($\mathrm{CO_2}$) is the correct answer, as it is required by plants for photosynthesis and is released into the environment by animals as a waste product.
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