how is haemoglobin associated with respiration?explain
Answers
Answer:
Hemoglobin is made up of four subunits and can bind up to four oxygen molecules.
Carbon dioxide levels, blood pH, body temperature, environmental factors, and diseases can all affect oxygen’s carrying capacity and delivery.
A decrease in the oxygen-carrying ability of hemoglobin is observed with an increase in carbon dioxide and temperature, as well as a decrease in pH within the body.
Sickle cell anemia and thalassemia are two hereditary diseases that decrease the blood’s oxygen-carrying capacity.
Key Terms
thalassemia: an inherited disorder in which the person produces a high number of red blood cells, but the cells have lower levels of hemoglobin
sickle cell anemia: a hereditary blood disorder, characterized by red blood cells that assume an abnormal, rigid, sickle shape
heme: the component of hemoglobin responsible for binding oxygen; consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen