OCR A Level PE EPOC

Explain how the conduction system of the heart controls diastole. (2marks)

Answer explanation

1. (Atria relax) Atria/ventricles do not contract or atria/ventricles relax or atria/ventricles are filling/fill with blood

2. (No impulse) (due to …) No (electrical) impulse/signa

Identify the processes that occur during the fast component of excess post exercise oxygen consumption.

2marks

Answer explanation

1.(Oxygen) Replenish/restore/re-link blood/haemoglobin/muscle/myoglobin with oxygen

2.(ATP) Resynthesise/replenish ATP (in the muscle)

3.(PC) Resynthesise/replenish phosphocreatine/PC or Restore (muscle) phosphagen

the volume of oxygen that would be required to complete an activity entirely aerobically

• Oxygen deficit

• Intensity

• EPOC

EPOC is always present after exercise. However, the size of the oxygen deficit depends on the .................. and ..................... of the exercise

What does the fast component of EPOC achieve?

What does the slow component of EPOC achieve?

What is "elevated" after exercise to increase oxygen consumption

There are 3

Give three reasons why circulation is elevated after exercise

Why is the body temperature elevated after exercise?