Matching

-Hemoglobin's subunits bind oxygen in a ______ manner.
A) positively cooperative
B) cyanosis
C) His E7
D) decrease
E) R
F) hydrogen bonds
G) increase
H) symmetry
I) His F8
J) ion pairs
K) T
L) hemolytic anemia
M) sequencial

Question

Matching

-Hemoglobin's subunits bind oxygen in a ______ manner.
A) positively cooperative
B) cyanosis
C) His E7
D) decrease
E) R
F) hydrogen bonds
G) increase
H) symmetry
I) His F8
J) ion pairs
K) T
L) hemolytic anemia
M) sequencial

Quizplus · Accepted Answer

Hemoglobin exhibits positively cooperative binding of oxygen, meaning that as one oxygen binds, the affinity for the remaining oxygen increases.

Answer: C and I 
 His E7 and His F8 are the two histidine residues involved in coordinating the iron ion in the heme group of each subunit of hemoglobin.

Answer: H 
 Hemoglobin exhibits symmetry, meaning that the subunits change conformation in a coordinated manner upon binding of oxygen.

Answer: M 
 Hemoglobin binds oxygen in a sequential manner, meaning that each subunit undergoes a conformational change upon binding of oxygen which then promotes binding of oxygen by the other subunits.

Matching -Hemoglobin's Subunits Bind Oxygen in a ______ Manner