The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as___________?
Correct answer: B. Hydrophobic
- A. Hydrophilic
- B. Hydrophobic
- C. Both of these
- D. None of these
Explanation
The core of the thylakoid membrane is made largely of nonpolar lipid tails, so it is hydrophobic and can accommodate the nonpolar regions of chlorophyll and other membrane proteins. The likely mistake is choosing both hydrophilic and hydrophobic by considering the whole membrane, but the question specifically asks about its core.
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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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