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Home Q & A Board Biology-Related Homework Help General Biology
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tifoanug tifoanug
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6 years ago
Which protein binds and releases oxygen molecules?
  a. collagen
  b. insulin
  c. keratin
  d. hemoglobin
  e. enzymes

Question 2

What level of protein structure is associated with the folding of coils and sheets to form a hollow region through
  which substances can move into and out of cells?
  a. primary
  b. secondary
  c. tertiary
  d. quaternary
  e. binary
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grodriguezzgrodriguezz
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6 years ago
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tifoanug Author
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#2
6 years ago
Ready for finals now Monkey
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#3
6 years ago
Good luck my friend!
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