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tino4ka555 [31]
3 years ago
7

Please help with 2 chem questions thank you!

Chemistry
2 answers:
xeze [42]3 years ago
8 0
The correct answers are A and C.
andrew11 [14]3 years ago
6 0
The 1st one is A

The second one is I am 90% sure is A as well
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Answer:

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2 years ago
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3 years ago
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Explanation:

Haemoglobin consists of heme unit which is comprised of an <u>Fe^{2+}</u> and porphyrin ring. The ring has four pyrrole molecules which are linked to the iron ion. In oxyhaemoglobin, the iron has coordinates with four nitrogen atoms and one to the F8 histidine residue and the sixth one to the oxygen. In deoxyhaemoglobin, the ion is displaced out of the ring by 0.4 Å.

The prosthetic group of hemoglobin and myoglobin is - <u>Heme</u>

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The central atom has <u>six</u> bonds: <u>four</u> to nitrogen atoms in the porphyrin, one to a <u>histidine</u> residue, and one to oxygen.

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