2,3-BPG stabilizes which state of hemoglobin? - Answer T state
2,3-BPG stabilizes the T state of hemoglobin. This reduces hemoglobin affinity for __________ and promotes O2 ________to the tissues - Answer O2, released
CO stabilizes which state of hemoglobin? - Answer R state
When ...
Biochemistry - C785 Module 3 & 4 Latest
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Answers.
2,3-BPG stabilizes which state of hemoglobin? - Answer T state
2,3-BPG stabilizes the T state of hemoglobin. This reduces hemoglobin affinity for __________ and
promotes O2 ________to the tissues - Answer O2, released
CO stabilizes which state of hemoglobin? - Answer R state
When CO binds to the site at the iron hemoglobin it changes that heme's ____________ - Answer
shape and changes into the R state
H+(protons) stabilizes which state of hemoglobin? - Answer T state
At a lower pH of an actively metabolizing tissue, hemoglobin has a __________ affinity for oxygen -
Answer LOWER
3. when pH is low affinity for oxygen and releases oxygen
Hemoglobin binds to the oxygen at a ___________ - Answer High pH
Hemoglobin releases oxygen at a ______________ - Answer Low pH
Myoglobin - Answer 1. stores oxygen
2. has a higher affinity for oxygen
3. has a tertiary structure
4. monomer - single polypeptide chain
Hemoglobin - Answer 1. transports oxygen
2. has 4 FE (II) atoms to bind 4 oxygen molecules
3. has tertiary structure
Hemoglobin can bind very tightly to oxygen in the - Answer lungs, where oxygen levels are high
Hemoglobin release oxygen in the tissues - Answer where these oxygen levels are decreased
Hemoglobin's cooperative binding behavior is influenced by binding ____________ - Answer oxygen
Sigmoidal (s-shape) - Answer hemoglobin
Curve to the left - Answer equals a base
high affinity for oxygen
, Curves to the right - Answer equals an acid
lower affinity for oxygen
Hyperbolic (sideways, u shape) - Answer myoglobin
Deoxygentated - Answer T state
Oxygenated - Answer R state
Deoxyhemoglobin - Answer oxygen unbound, T state
T state, deoxygenated - Answer 1. low pH
2. low concentration of oxygen
3. high concentration of H+ (protons)
4. high concentration of CO2
5. heme is bent (non planar)
Myoglobin and Hemoglobin both binds - Answer oxygen via the heme group
Why does the subunit composition of hemoglobin make it an ideal candidate to transport oxygen? -
Answer Since hemoglobin has 4 subunits, it can transport four oxygen molecules. Additionally,
communication between the four subunits (cooperativity) will ensure that all four subunits pick up and
deliver oxygen.
Pulse oximeter - Answer measures the fraction of hemoglobin bound to oxygen by measuring levels of
oxygenated hemoglobin in blood using light absorption
Why would oxygen concentration (torr) decrease from the lungs to distal tissues? - Answer The oxygen
concentration decreases from the lungs to the distal tissues because oxygen enters the body in the lungs
and is consumed Iin the tissues.
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