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Multiple Choice
In the context of cellular respiration, the maximum rate at which an individual can uptake and utilize oxygen during intense exercise is known as the __________.
A
Ox max
B
Ox$_3$ max
C
VO$_2$ max
D
VO max
Verified step by step guidance
1
Understand the context: The problem is asking about a term related to cellular respiration and oxygen utilization during intense exercise. Cellular respiration is the process by which cells produce energy (ATP) using oxygen.
Identify the key concept: The term being described is the maximum rate at which oxygen can be taken up and utilized by the body during intense physical activity. This is a measure of aerobic capacity and is commonly used in exercise physiology.
Clarify the correct term: The correct term for this concept is VO$_2$ max, which stands for 'maximum volume of oxygen' that an individual can utilize during exercise. It is expressed in milliliters of oxygen per kilogram of body weight per minute (mL/kg/min).
Explain the significance: VO$_2$ max is an important indicator of cardiovascular and respiratory efficiency. It reflects the ability of the heart, lungs, and muscles to work together to deliver and use oxygen effectively during physical activity.
Relate to cellular respiration: VO$_2$ max is directly tied to the efficiency of cellular respiration, as oxygen is a critical component in the production of ATP through aerobic pathways such as glycolysis, the Krebs cycle, and oxidative phosphorylation.