Deck 6: Digestion and Absorption

Question 1

The main energy fuel during heavy exercise such as competitive running is

A) carbohydrate
B) lipid
C) protein
D) sodium

Answer 1

A

Question 2

Energy from the intramuscular high-energy phosphates (i.e., ATP and CP) can sustain all-out exercise for

A) ~10 seconds
B) 2-3 minutes
C) 20 minutes
D) 1 hour

Answer 2

A

Question 3

Which of the following does not explain why carbohydrate is a better energy fuel than fat?

A) Carbohydrate can be metabolized for energy both anaerobically and aerobically
B) ATP production from carbohydrate breakdown is faster
C) Burning fat needs the presence of carbohydrate
D) One molecule of glucose once broken down aerobically can produce much more ATPs than a fatty acid molecule

Answer 3

D

Question 4

In which of the following circumstances will protein be most likely used as an energy fuel?

A) Immediately following a meal
B) During brisk walking
C) After 24 hours of starvation
D) During time between regular meals

Question 5

What is the predominant energy system used for an 800-m run?

A) ATP-CP
B) Anaerobic glycolysis
C) Aerobic system

Question 6

What is the predominant energy system used for a 10-km run?

A) ATP-CP
B) Anaerobic glycolysis
C) Aerobic system

Question 7

Which of the following is what trained athletes are able to do to better budget their fuels during prolonged endurance exercise?

A) Use more protein to spare carbohydrate
B) Use more carbohydrate to spare fat
C) Use more fat to spare carbohydrate
D) Use more protein to spare fat