Some Questions about Hemoglobin

Some questions about Hemoglobin:

 

Question P-02

 

The affinity of Hemoglobin for Oxygen increases when:

 

a)     a molecule of Oxygen binds to one of the Hem groups

b)     protons concentration increases

c)      the concentration of 2,3-BPG increases

d)     an acidosis is established

e)     the concentration of Carbon Dioxide increases

 

Question P-03

 

This substance, transported by Hemoglobin, promotes the relaxation of vascular walls, producing an important and potent vasodilator effect.

a)     2,3, BPG

b)     Carbon monoxide

c)      Carbon Dioxide

d)     Nitric Oxide

e)     Oxygen

 

Question P-04

 

Hemoglobin F is formed by:

 

a)     1 Hem group, two alpha peptide chains and two beta peptide chains

b)     1 Hem group, two alpha peptide chains and two gamma peptide chains

c)      2 Hem groups, two alpha peptide chains and two beta peptide chains

d)     2 Hem groups, two alpha peptide chains and two gamma peptide chains

e)     4 Hem groups, two alpha peptide chains and two beta peptide chains

f)       4 Hem groups, two alpha peptide chains and two gamma peptide chains

 

Question P-05

 

An important difference between Methemoglobin and hemoglobin is that:

 

a)     Methemoglobin has four  alpha chains

b)     Methemoglobin has four beta chains.

c)      Methemoglobin has two alpha chains and two gamma chains

d)     Methemoglobin has iron in Ferric state instead of Ferrous state

e)     Methemoglobin has cupper instead of iron.