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antionett15 antionett15
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6 years ago
What is at the center of a heme molecule in a
  hemoglobin?
 
  a. a beta globin chain
  b. an alpha globin chain
  c. iron
  d. nitrogen
  e. another heme molecule

Question 2

To what, specifically, does oxygen in a
  hemoglobin molecule bind?
 
  a. another oxygen
  b. hydrogen
  c. iron
  d. methionine
  e. nitrogen
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m0502428m0502428
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6 years ago
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antionett15 Author
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#2
6 years ago
Thank you for taking the time to explain this, just got my quiz back: Perfect
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