3.1 Hemoglobin structure and function Flashcards
1
Q
Main function of hemoglobin is to transport _____ from the lungs to tissues, and transport ____from the tissues to the lungs for exhalation
A
O2
CO2
2
Q
A molecule of Hemoglobin is consists of:
___ pairs of polypeptide chains (Globins)
___ heme grous
A
2
4
3
Q
Each heme group is composed of a complex ring structure, protoporphyrin __
A
IX
4
Q
Heme group:
__ Atom of Ferrous iron
__ Pyrrole Ring
A
1
4
5
Q
Each hemoglobin is capable of binding ___ molecules of O2
A
4
6
Q
1 g Hb can carry _____ mL of oxygen
A
1.34
7
Q
A small percentage of Hb A is glycated
T or F
A
T
8
Q
The most characterized of the glycated hemoglobin is Hb A1c, in which glucose attaches to the N-terminal valine of the β-chain.
T or F
A
T
9
Q
Represents the average blood glucose
levels in the previous 2 to 3 months
A
HbA1c
