When oxygen binds to a subunit of hemoglobin, the will . (5 points) Select one: a. T conformation of hemoglobin ---- shift to the R state b. Distal histidine (His-64) ---- move away from the O2, decreasing the affinity for iron c. Distal histidine (His-64) ---- be bound to water d. R conformation of hemoglobin ---- shift to the T state e. Proximal histidine (His-93) ---- be bound to oxygen

          When oxygen binds to a subunit of hemoglobin, the ____ will ____. (5 points)

Select one:
a. T conformation of hemoglobin ---- shift to the R state
b. Distal histidine (His-64) ---- move away from the O2, decreasing the affinity for iron
c. Distal histidine (His-64) ---- be bound to water
d. R conformation of hemoglobin ---- shift to the T state
e. Proximal histidine (His-93) ---- be bound to oxygen

When oxygen binds to a subunit of hemoglobin, the will . (5 points)

Select one:
a. T conformation of hemoglobin —- shift to the R state
b. Distal histidine (His-64) —- move away from the O2, decreasing the affinity for iron
c. Distal histidine (His-64) —- be bound to water
d. R conformation of hemoglobin —- shift to the T state
e. Proximal histidine (His-93) —- be bound to oxygen

Added by Ronald D.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Adi S

08/31/2023

Step 1

Oxygen binds to the subunit of hemoglobin. Show more…

Show all steps

Thanks for your feedback!

When oxygen binds to a subunit of hemoglobin, the T conformation of hemoglobin shifts to the R state. The distal histidine (His-64) moves away from the O2, decreasing the affinity for iron. The distal histidine (His-64) is bound to water. The R conformation of hemoglobin shifts to the T state. The proximal histidine (His-93) is bound to oxygen.