Chlorophyll a and chlorophyll b differ from each other with respect to the number of:
Correct answer: D. Hydrogen and oxygen atoms
- A. Carbon atoms
- B. Oxygen atoms
- C. Hydrogen atoms
- D. Hydrogen and oxygen atoms
Explanation
Chlorophyll a and chlorophyll b have the same basic structure, but they differ in the number of hydrogen and oxygen atoms. Specifically, chlorophyll a has two additional hydrogen atoms and one less oxygen atom compared to chlorophyll b. This difference in atomic composition influences their absorption spectra and roles in photosynthesis. The incorrect options fail to account for the differences in both hydrogen and oxygen atoms.
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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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