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Questions and Answers
Which macronutrient is the preferred source of fuel during exercise?
Which macronutrient is the preferred source of fuel during exercise?
- Carbohydrates (correct)
- Protein
- Fat
- Fiber
What is the primary function of protein in the body during exercise?
What is the primary function of protein in the body during exercise?
- Promoting growth and repair (correct)
- Providing energy
- Storing glycogen
- Facilitating muscle contraction
Which molecule supplies energy to muscle cells for muscular contraction during physical activity?
Which molecule supplies energy to muscle cells for muscular contraction during physical activity?
- ATP (correct)
- CHO
- Fat
- Protein
Which energy system involves the breakdown of glucose and is controlled by enzymes?
Which energy system involves the breakdown of glucose and is controlled by enzymes?
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Which energy system is also known as the Krebs Cycle and the citric acid cycle?
Which energy system is also known as the Krebs Cycle and the citric acid cycle?
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Study Notes
Energy Sources and Systems
- Carbohydrates are the preferred source of fuel during exercise.
- The primary function of protein in the body during exercise is to provide amino acids for muscle repair and development.
- Adenosine triphosphate (ATP) is the molecule that supplies energy to muscle cells for muscular contraction during physical activity.
- The glycolytic system is the energy system that involves the breakdown of glucose and is controlled by enzymes.
- The citric acid cycle, also known as the Krebs Cycle, is a key energy system that generates energy for the body during exercise.
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