Scenario an Abundant and Continual Supply of ATP Is Necessary for Necessary

Multiple Choice

Scenario
An abundant and continual supply of ATP is necessary for all living cells. Toxins, reduced blood flow, and a compromised respiratory system can interfere with the transport of oxygen to active cells. A runner in a marathon faces multiple obstacles to continue to produce sufficient ATP to remain competitive.
-Exchanges across respiratory membranes are increased when we breathe faster as we exercise. What exchanges are increased, and why?

A) carbon dioxide out and oxygen in to support aerobic metabolism
B) oxygen out and carbon dioxide in to support aerobic metabolism
C) carbon dioxide in and lactic acid out to support anaerobic metabolism
D) oxygen in and carbon dioxide in to support anaerobic metabolism