Question

during exercise body temp will rise and cause a right shift in the o2 dissociation curve allowing hemoglobin to:

O a. True b. False * Question Completion Status: QUESTION 5 During exercise body temp will rise and cause a right shift in the 02 dissociation curve allowing Hemoglobin to: a. Increase binding affinity for 02 b. Increase O2 uptake from the organs c. Increase O2 release to the active tissue d. Not change its affinity for 02 QUESTION 6 Which statement accurately describes cardiac output (Q). a Reflects the functional capacity of the circulation to meet the demands of exercise O b. Reflects the delivery of blood to the working muscles c. Reflects heart function at rest and during exercise d All the Above QUESTION 7 Performing a Valsalva maneuver during a maximal lift causes a reduction in blood pressure a True b. False QUESTION 8

please answer all

Answer 1

Increase O2 release to the active tissue.

Explanation: Excersize causes an increase in temperature in the active tissues (like muscles). This increase in temperature decreases the affinity of O2 to haemoglobin (denatures the bond between O2 and haemoglobin). As a result, O2 gets easily released from oxyhaemoglobin and diffused into the cells. This decrease in affinity results in a right shift in the O2 dissociation curve.