The chlorophyll head is made up of:
Correct answer: C. Four joined pyrrole rings
- A. Four joined porphyrin rings
- B. Four joined tetrapyrrole rings
- C. Four joined pyrrole rings
- D. Two joined pyrrole rings
Explanation
The chlorophyll molecule has a head known as the porphyrin ring, which is made up of four pyrrole rings linked together. This tetrapyrrole structure is fundamental to the function of chlorophyll in photosynthesis. Option C is correct, as it accurately describes this arrangement. Options A and B incorrectly emphasize the term 'porphyrin' without specifying the pyrrole structure, while Option D underestimates the number of pyrrole rings involved.
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