How does distance running affect the energy systems?
A. The oxidative system becomes more important, and the ATP-PC system becomes less important.
B. The oxidative system becomes more important, and the lactic acid system becomes less important.
C. The ATP-PC system becomes more important, and the lactic acid system becomes less important.
D. The ATP-PC system becomes more important, and the oxidation system becomes less important.
I think the answer is B.
B is incorrect.
My test was for Primavera for reference.
The correct answer is A. The oxidative system becomes more important, and the ATP-PC system becomes less important.
My test was also from primavera.
To determine the correct answer, let's examine how distance running affects the energy systems in the body.
Distance running primarily relies on aerobic metabolism, which refers to the use of oxygen to produce energy. The two primary energy systems involved in aerobic metabolism are the oxidative system (also known as the aerobic system) and the lactic acid system (also known as the anaerobic system).
The oxidative system is responsible for generating energy from carbohydrates and fats in the presence of oxygen. It is highly efficient and can sustain energy production for long durations. This system becomes increasingly important during distance running as it provides a continuous supply of ATP (adenosine triphosphate) – the energy currency of the body.
On the other hand, the lactic acid system involves the breakdown of stored glucose without the presence of oxygen, resulting in the production of lactic acid as a byproduct. This system is less efficient and can only sustain energy production for shorter periods before fatigue sets in.
Looking at the answer choices:
A. The oxidative system becomes more important, and the ATP-PC system becomes less important.
This is not correct because the ATP-PC system is not directly associated with aerobic metabolism and is primarily used for high-intensity activities that last for very brief durations.
B. The oxidative system becomes more important, and the lactic acid system becomes less important.
This is the correct answer. As distance running relies on sustained energy production, the oxidative system becomes increasingly important as it provides a continuous supply of ATP. The lactic acid system becomes less important as the body attempts to minimize the buildup of lactic acid, which can lead to muscular fatigue.
C. The ATP-PC system becomes more important, and the lactic acid system becomes less important.
This is not correct because the ATP-PC system is primarily used for short, intense bursts of energy and is not directly involved in sustained aerobic metabolism.
D. The ATP-PC system becomes more important, and the oxidation system becomes less important.
This is not correct because the oxidative system (aerobic system) becomes more important during distance running, not less important.
Therefore, the correct answer is B.