Chapter 7: Energy For Muscular Acivity

Question 1

What are the 3 types of energy systems for muscles?

Answer 1

Phosphagen (anaerobic alactic)
Glycolytic (anaerobic lactic)
Oxidative (aerobic)

Question 2

The phosphagen system provides immediate energy and works without oxygen. What is the crucial substance that allows it to create 1 ATP?

Answer 2

Creatine phosphate (CP)

Question 3

The glycolytic system provides short term (~2 min) energy by beginning without oxygen, then moving to it when supplied. Describe the that process occurs before it starts to use oxygen

Answer 3

Glycolysis, which breaks down glucose to produce 2 ATP without oxygen. A byproduct called pyruvate is created, which is a combination of lactate and hydrogen

Question 4

What does training to improve ANAEROBIC THRESHOLD mean for the body during exercise?

Answer 4

The body can tolerate higher levels of pyruvate

Question 5

The oxidative system is the body’s default and is used for long term energy. A process fully breaks down glucose to produce 36 ATP replenishes the anaerobic systems and leaves CO2 and H2O as byproducts. What is this process?

Answer 5

Oxidative phosphorylation. It is a process relatively slower than the other energy systems and requires oxygen

Question 6

Which energy system does having a higher VO2 MAX directly benefit the most?

Answer 6

Oxidative, as VO2 MAX measures how much oxygen used per minute