Some athletes use \"blood doping,\" in which additional red blood cells are adde
ID: 3521406 • Letter: S
Question
Some athletes use "blood doping," in which additional red blood cells are added to the blood prior to the competition. What is the effect of blood doping? A) It makes blood thinner so that it flows faster. B) It increases oxygen delivery to muscles C) It decreases blood pressure. D) It changes the pH of the blood 7. Most of the carbon dioxide released from cells is transported as A) Dissolved carbon monoxide B) Bicarbonate ions in the plasma C) Carbon dioxide attached to hemoglobin. D) Carbohydrates, such as glucose. 8. 9. Carbon monoxide is poisonous because it A) Causes breathing to stop B) is toxic to the brain. C) Prevents hemoglobin from carrying oxygen. D) Slows the cilia in the respiratory tract.Explanation / Answer
QNO 7; (b part) it increases oxygen delivery to muscles
because higher concentration of these cells carry oygen from lungs to the muscles and can improve atheltes aerobic capicity also it icrease hemoglobin concentration which is key factor in carrying oxygen by which perfomance and stamina of athelete's increases
QNO8; (b part) Bicarbonate ions in the plasma
As red blood cells contain carbonic anhydrase enzyme which catalyses reaction between carbon and water and form bicarbonates which eases its tranportation from tissues upto lungs
QNO 9 ( c part) prevents hemoglobin from carrying oxygen
because it form more stong bond with iron(fe) in hemoglobin (hb) than oxygen (o2)
hb+o2________________hbo2
Hb+co______________Hbco (this compound releases more energy and forms strong bond)
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