Xanthophylls are _________ pigments
Correct answer: A. Yellow
- A. Yellow
- B. Red
- C. Orange
- D. Green
Explanation
Xanthophylls are accessory carotenoid pigments that appear yellow and help absorb wavelengths that chlorophyll does not absorb efficiently. Carotenes may be confused with them because both are carotenoids, but carotenes are generally orange rather than yellow.
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About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
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