Which shows the effectiveness of wavelengths of light in driving photosynthesis?
Correct answer: B. Action spectrum
- A. Absorption spectrum
- B. Action spectrum
- C. Broad spectrum
- D. Narrow spectrum
Explanation
The action spectrum is the correct answer because it directly measures how effective different wavelengths of light are in facilitating photosynthesis. It helps identify which wavelengths are most efficient at driving the process. The absorption spectrum, while related, only shows which wavelengths are absorbed, not their effectiveness in photosynthesis. "Broad spectrum" and "narrow spectrum" are unrelated terms, about UV protection and antibiotic specificity, respectively.
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Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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