10) The heme group in myoglobin has a lower affinity for carbon monoxide as compared to free heme. What statement below best explains this observation? a) Myoglobin lowers the pH around the heme group. b) Myoglobin has negatively charged groups around the heme group. c) Heme is buried in the core of myoglobin making the heme inaccessible. d) Steric hindrance around the heme group caused by R groups in myoglobin. e) The iron ion of free heme is replaced with a copper ion in myoglobin.
10) The heme group in myoglobin has a lower affinity for carbon monoxide as compared to free heme. What statement below best explains this observation? a) Myoglobin lowers the pH around the heme group. b) Myoglobin has negatively charged groups around the heme group. c) Heme is buried in the core of myoglobin making the heme inaccessible. d) Steric hindrance around the heme group caused by R groups in myoglobin. e) The iron ion of free heme is replaced with a copper ion in myoglobin.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:10) The heme group in myoglobin has a lower affinity for carbon monoxide as
compared to free heme. What statement below best explains this observation?
a) Myoglobin lowers the pH around the heme group.
b) Myoglobin has negatively charged groups around the heme group.
c) Heme is buried in the core of myoglobin making the heme inaccessible.
d) Steric hindrance around the heme group caused by R groups in myoglobin.
e) The iron ion of free heme is replaced with a copper ion in myoglobin.
Expert Solution
Step 1
Myoglobin is mostly present in muscle tissue, where it aids in oxygen transport and storage. Myoglobin may also be found in neurons, where it aids in the protection of the brain against hypoxia and ischemia.
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