Why might elite athletes abuse erythropoeitin (EPO)?Multiple ChoiceEPO stimulates the production of a type of hemoglobin that is more efficient at carrying oxygen.EPO increases the red blood cell supply, which brings more oxygen to muscle cells.EPO stimulates muscles cells to pick up more oxygen from the blood.EPO increases the white blood cell supply, which prevents infection.

Fill in the Blank QuestionFill in the blank question.The hormone erythropoietin (EPO) controls the rate of red blood cell formation through feedback mechanisms.

How does erythropoietin (EPO) regulate red blood cell production?Multiple choice question.through negative feedbackby regulating the amount of hemoglobin producedthrough positive feedbackby removing excess red blood cells that enter the kidney

Individuals who are successful climbing to high altitudes have a great capacity to hyperventilate. This is beneficial because it drives down the PO2 of the blood. allows more hemoglobin to bind to oxygen at the same PO2. inhibits the effects of erythropoietin on the blood. increases hemoglobin concentration in the blood.

Why is the presence of too many erythrocytes a problem?Blood lacks enough oxygen, resulting in hypoxia.Blood becomes too viscous, making it difficult for the heart to pump it.Blood is unable to break down and destroy old erythroctyes.Blood cannot produce erythropoietin.

Erythropoietin administration results in an increase in VO2 max because:Group of answer choicesan increase in red cell mass enhances oxygen deliveryblood viscosity is increasedblood buffer capacity is enhanced