Energy Systems and Exercise Physiology

Adenosine Triphosphate (ATP) is primarily responsible for:

• Storing genetic information

• Providing energy for cellular processes

• Transporting oxygen in the blood

• Catalyzing biochemical reactions

Phosphocreatine is involved in which of the following energy systems?

• Aerobic system

• Anaerobic glycolysis

• ATP-PC system

• Oxidative phosphorylation

The process of lactic acid and anaerobic glycolysis involves:

• the breakdown of glucose without oxygen to produce energy and lactic acid

• the use of oxygen to convert glucose into energy

• the conversion of lactic acid into glucose

• the breakdown of proteins to produce energy

The aerobic energy system is responsible for providing energy during prolonged, steady-state activities. How does it function?

• By using oxygen to convert carbohydrates, fats, and proteins into energy

• By breaking down glucose without oxygen

• By using stored ATP for immediate energy

• By converting lactic acid into energy

How much ATP is produced by each energy system?

• 2 ATP from glycolysis, 2 ATP from Krebs cycle, 34 ATP from electron transport chain

• 4 ATP from glycolysis, 2 ATP from Krebs cycle, 32 ATP from electron transport chain

• 2 ATP from glycolysis, 4 ATP from Krebs cycle, 32 ATP from electron transport chain

• 2 ATP from glycolysis, 2 ATP from Krebs cycle, 36 ATP from electron transport chain

List some sports that use these energy systems to provide energy.

• Soccer, Basketball, and Tennis

• Chess, Checkers, and Go

• Swimming, Running, and Cycling

• Golf, Billiards, and Bowling

The recovery time for different energy systems is:

• a) 0-30 seconds for ATP-PC system, 1-3 minutes for anaerobic glycolysis, and 24-48 hours for aerobic system

• b) 1-2 minutes for ATP-PC system, 5-10 minutes for anaerobic glycolysis, and 12-24 hours for aerobic system

• c) 30-60 seconds for ATP-PC system, 3-5 minutes for anaerobic glycolysis, and 48-72 hours for aerobic system

• d) 2-3 minutes for ATP-PC system, 10-15 minutes for anaerobic glycolysis, and 6-12 hours for aerobic system

How do energy systems respond to acute exercise?

• They increase energy production to meet the demand.

• They decrease energy production to conserve energy.

• They remain unchanged regardless of exercise intensity.

• They switch to anaerobic energy production only.

Phosphocreatine is associated with increased ______ stores.

• creatine

• glucose

• fat

• protein

Lactic acid leads to increased tolerance to ______.

• lactic acid

• fatigue

• pain

• muscle soreness