Chapter 4

Question 1

Glycogen is a

Answer 1

complex carbohydrate that can be rapidly broken down into glucose.

Question 2

Time in which oxidative system is primarily used.

After … secs

Answer 2

90 secs

Question 3

In anaerobic glycolysis, glycogen is broken down into… (aerobic and anerobic)

Answer 3

Pyruvic acid (aerobic) or lactic acid (anaerobic)

Question 4

During glycolysis, in the presence of oxygen, pyruvic acid is converted into which important molecule in metabolism?

Answer 4

Acetyl coenzyme A

Question 5

What usually happens after 90 minutes of exercise? (what is depleted?)

Answer 5

The majority of muscle glycogen stores are depleted.