객관식
Which gas is produced during photosynthesis that directly benefits humans?
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9. Photosynthesis
Introduction to Photosynthesis
객관식
Which of the following would increase the rate of photosynthesis and lead to the production of more glucose in plants?
A
Increasing the intensity of light available to the plant
B
Lowering the temperature below the plant's optimal range
C
Reducing the amount of water supplied to the plant
D
Decreasing the concentration of carbon dioxide (CO_2) around the plant
검증된 단계별 안내1
Understand the process of photosynthesis: Photosynthesis is the process by which plants convert light energy, carbon dioxide (CO₂), and water into glucose and oxygen. The rate of photosynthesis is influenced by several factors, including light intensity, temperature, water availability, and CO₂ concentration.
Analyze the role of light intensity: Light is a key energy source for photosynthesis. Increasing light intensity generally boosts the rate of photosynthesis, up to a certain point, as it provides more energy for the light-dependent reactions.
Evaluate the effect of temperature: Photosynthesis relies on enzymes that function optimally within a specific temperature range. Lowering the temperature below the plant's optimal range would slow down enzyme activity, reducing the rate of photosynthesis.
Consider the importance of water: Water is a reactant in photosynthesis and is essential for the light-dependent reactions. Reducing the amount of water supplied to the plant would limit photosynthesis and decrease glucose production.
Examine the impact of CO₂ concentration: CO₂ is a critical reactant in the Calvin cycle (light-independent reactions). Decreasing the concentration of CO₂ around the plant would reduce the rate of photosynthesis and glucose production. Conversely, increasing CO₂ concentration can enhance photosynthesis under optimal conditions.
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