Which of the following statement about the head of a chlorophyll molecule is incorrect?
Correct answer: D. It is hydrophobic
- A. It is a porphyrin ring or tetrapyrrole ring structure
- B. It is flat, square and light absorbing
- C. Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
- D. It is hydrophobic
Explanation
The chlorophyll head is a hydrophilic porphyrin ring containing carbon, nitrogen, and a central magnesium ion, whereas its phytol tail is hydrophobic. Students most likely choose another option by confusing the hydrophobic phytol tail with the light-absorbing head.
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