| 1. | Cancer tumors need oxygen too, so they snap up porphyrins.
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| 2. | Skin disease is encountered where excess porphyrins accumulate in the skin.
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| 3. | This accounts for the property of fluorescence typical of the porphyrins.
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| 4. | Chloroquine may be used to increase porphyrin secretion in some EPs.
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| 5. | Myoglobin contains a porphyrin ring with an iron at its center.
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| 6. | He is an internationally recognized expert in porphyrin chemistry and biochemistry.
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| 7. | These shell pigments sometimes include compounds such as pyrroles and porphyrins.
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| 8. | Miller, the oncologist, knew something else about porphyrins.
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| 9. | Phthalocyanines are structurally related to other macrocyclic pigments, especially the porphyrins.
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| 10. | It catalyzes the second step of the biosynthesis of porphyrin.
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