GENERAL HISTOLOGY

LIVER PANCREAS

LIVER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the role of hemoglobin?
A
It carries oxygen
B
It clots the blood
C
It kills viruses
D
It helps the heart beat
Explanation: 

Detailed explanation-1: -Hemoglobin (Hgb or Hb) is the primary carrier of oxygen in humans. Approximately 98% of total oxygen transported in the blood is bound to hemoglobin, while only 2% is dissolved directly in plasma.

Detailed explanation-2: -Hemoglobin (Hb) constitutes a vital link between ambient O2 availability and aerobic metabolism by transporting oxygen (O2) from the respiratory surfaces of the lungs or gills to the O2-consuming tissues.

Detailed explanation-3: -In other words Hemoglobin in the blood carries oxygen from the lungs to the rest of the body (i.e., the tissues). There it releases the oxygen to permit respiration to provide energy.

Detailed explanation-4: -It is a respiratory pigment and helps in transporting oxygen as oxyhaemoglobin from the lungs to different parts of the body. Some amount of carbon dioxide is also transported back via haemoglobin as carbaminohaemoglobin.

Detailed explanation-5: -Solution: The major function of haemoglobin is the transportation of oxygen from the lungs to all tissues of the body. Haemoglobin is the respiratory pigment which is formed of the iron-containing part known as haem and protein part known as globin.

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