Energy Systems & Sport

What is the name of the naturally occurring compound found in muscles that provides us with energy for muscular contraction?

• Creatine Phosphate

• Adenosine Diphosphate

• Adenosine Triphosphate

• Glycogen

We store enough ATP in our muscles for how many seconds worth of exercise?

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When we run out of ATP, we must then turn to another compound to provide energy? Choose one from the list below.

• Glycogen

• Adenosine Diphosphate

• Creatine Phosphate

• Glucose

When Creatine Phosphate is split into a separate C+P, it releases energy for which of the following?

• Muscular Contraction

• Remove Lactic Acid from Muscles

• Re-Synthesize ATP

When a compound is broken down, releasing energy, what is it known as?

• Exothermic Reaction

• Endothermic Reaction

• Coupled Reaction

When ATP has been re-synthesized, what happens next?

• Lactic Acid is produced

• Aerobic System is activated

• ATP is broken down once again, releasing energy for muscular contraction

• Nothing

What is a common feature of both the ATP-CP system and the Lactic Acid energy systems?

• Lactic Acid is produced

• Both systems take the same period of time to recover

• ATP is re-synthesized anaerobically

• The accumulation of lactic acid in the working muscles causes fatigue

What is the most likely cause of fatigue in a runner completing a 100 metre sprint?

• Dehydration

• Accumulation of Lactic Acid

• Depletion of Muscle Glycogen

• Depletion of Creatine Phosphate

What is an Endothermic Reaction?

• When Energy is used to re-synthesize a compound

• When Energy is used for Muscular Contraction

• When Energy is stored in the muscles

• When Energy is released as a result of a breakdown of a compound

How long does the Energy released from the ATP-CP system last for?

• 3-5 seconds

• 1 minute

• 10-15 seconds

• 3 minutes +