TSAC-F, Physiological Adaptations And
Bioenergetics Questions And Answers
With Verified Solutions Rated A+
1. ATP-PCr System (or Phosphagen System)
Answer: The bioenergetic pathway responsible for providing ATP during high-
intensity activities. This system uses stored phosphocreatine to quickly regenerate
ATP for short bursts of energy.
2. Glycolysis
Answer: This pathway acts as the predominant source of energy during all-out
efforts lasting up to about 90 seconds. It breaks down glucose into pyruvate,
generating ATP in the process.
3. When exercise intensity is high and glucose is rapidly broken down,
_______ is the end product
Answer: Lactate. When oxygen is limited, glycolysis produces lactate as an end
product instead of pyruvate.
4. Lactate Threshold (LT)
Answer: The point at which the rate of lactate production by the muscles exceeds
the rate of lactate clearance. It is used to identify the intensity of exercise at which
fatigue starts to occur more rapidly.
5. The SAID (Specific Adaptation to Imposed Demands) Principle
Answer: Asserts that in a biological system, the adaptations that occur following
exposure to some stressor (e.g., physical training) are determined by the mode,
intensity, frequency, and duration of the stressor.
6. Muscular Endurance
Answer: Refers to a muscle's ability to contract repeatedly against a submaximal
load in a given period of time, or the ability to sustain a given submaximal force
for an extended period.
7. Muscular Strength
Answer: Can be defined as the maximum amount of force that a muscle or muscle
group can generate at a specific velocity.
Bioenergetics Questions And Answers
With Verified Solutions Rated A+
1. ATP-PCr System (or Phosphagen System)
Answer: The bioenergetic pathway responsible for providing ATP during high-
intensity activities. This system uses stored phosphocreatine to quickly regenerate
ATP for short bursts of energy.
2. Glycolysis
Answer: This pathway acts as the predominant source of energy during all-out
efforts lasting up to about 90 seconds. It breaks down glucose into pyruvate,
generating ATP in the process.
3. When exercise intensity is high and glucose is rapidly broken down,
_______ is the end product
Answer: Lactate. When oxygen is limited, glycolysis produces lactate as an end
product instead of pyruvate.
4. Lactate Threshold (LT)
Answer: The point at which the rate of lactate production by the muscles exceeds
the rate of lactate clearance. It is used to identify the intensity of exercise at which
fatigue starts to occur more rapidly.
5. The SAID (Specific Adaptation to Imposed Demands) Principle
Answer: Asserts that in a biological system, the adaptations that occur following
exposure to some stressor (e.g., physical training) are determined by the mode,
intensity, frequency, and duration of the stressor.
6. Muscular Endurance
Answer: Refers to a muscle's ability to contract repeatedly against a submaximal
load in a given period of time, or the ability to sustain a given submaximal force
for an extended period.
7. Muscular Strength
Answer: Can be defined as the maximum amount of force that a muscle or muscle
group can generate at a specific velocity.
