9. In the a-helix A. there are no hydrogen bonds B. the peptide chain is fully extended C. the peptide chain bends back on itself D. there are hydrogen bonds perpendicular to the helix axis E. None of the above 10. The Bohr effect for oxygen binding states that A. myoglobin binds oxygen more tightly than Hb. B. hemoglobin will bind oxygen very tightly when the CO2 concentration is high. C. as the pH goes up, Hb binds oxygen less tightly. D. Hb's ability to bind oxygen increases with higher oxygen concentration. E. None of the above

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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### Protein Structure and Oxygen Binding

#### 9. In the α-helix
A. **there are no hydrogen bonds**
B. **the peptide chain is fully extended**
C. **the peptide chain bends back on itself**
D. **there are hydrogen bonds perpendicular to the helix axis**
E. **None of the above**

#### 10. The Bohr effect for oxygen binding states that
A. **myoglobin binds oxygen more tightly than Hb.**
B. **hemoglobin will bind oxygen very tightly when the CO2 concentration is high.**
C. **as the pH goes up, Hb binds oxygen less tightly.**
D. **Hb's ability to bind oxygen increases with higher oxygen concentration.**
E. **None of the above**
Transcribed Image Text:### Protein Structure and Oxygen Binding #### 9. In the α-helix A. **there are no hydrogen bonds** B. **the peptide chain is fully extended** C. **the peptide chain bends back on itself** D. **there are hydrogen bonds perpendicular to the helix axis** E. **None of the above** #### 10. The Bohr effect for oxygen binding states that A. **myoglobin binds oxygen more tightly than Hb.** B. **hemoglobin will bind oxygen very tightly when the CO2 concentration is high.** C. **as the pH goes up, Hb binds oxygen less tightly.** D. **Hb's ability to bind oxygen increases with higher oxygen concentration.** E. **None of the above**
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