Which of the following supplies energy for quick bursts of intense activity lasting up to 10 seconds?

Question

Quizplus · Accepted Answer

Phosphocreatine is a high-energy molecule that can quickly regenerate ATP, the primary source of energy for all cellular activity. This system is used during short bursts of intense activity, like sprinting or weightlifting, and can provide energy for up to 10 seconds. Aerobic glucose breakdown, on the other hand, is a slower process that requires oxygen and is used for longer-duration activities. Lactic acid is produced during anaerobic glycolysis, which is also used for short bursts of activity but can only provide energy for up to 90 seconds. Caffeine is a stimulant that can improve performance by increasing alertness and reducing fatigue, but it does not supply energy directly.

Which of the Following Supplies Energy for Quick Bursts of Intense