040-444

040-444 practice questions, page 9 of 15, with answer review and explanations.

Question 41

The simplest and most rapid method to produce ATP during exercise is through __________.

  1. Glycolysis.
  2. The ATP-PCr system.
  3. Aerobic metabolism.
  4. Glycogenolysis.

Question 42

In general, the higher the intensity of the activity, the greater the contribution of __________.

  1. Aerobic energy production.
  2. Anaerobic energy production.
  3. The Krebs cycle to the production of ATP.
  4. The electron-transport chain to the production of ATP.

Question 43

The energy to perform long-term exercise (> or = 15 min) comes primarily from __________.

  1. Aerobic metabolism.
  2. A combination of aerobic and anaerobic metabolism, with anaerobic metabolism producing the bulk of the ATP.
  3. Anaerobic metabolism.
  4. None of the above.

Question 44

The energy to perform long-term exercise (> or = 16 min) comes primarily from __________.

  1. Aerobic metabolism.
  2. A combination of aerobic and anaerobic metabolism, with anaerobic metabolism producing the bulk of the ATP.
  3. Anaerobic metabolism.
  4. None of the above.

Question 45

In a rested, well-fed athlete, most of the carbohydrate used as a substrate during exercise comes from __________.

  1. Muscle glycogen stores.
  2. Blood glucose.
  3. Liver glycogen stores.
  4. Glycogen stored in fat cells.