EPT1 Flashcards
The name of the first laboratory associated witht eh first exercise physiology was?
Havard Fatigue Laboratory
Where is energy stored in ATP?
Bonds between phosphate
___ accounts for the largest reserve of CHO.
Muscle glycogen
While running at 7.0 mph, which V02 is the best exercise economy?
23 ml/kg/min.
whichever one is lowest since its the same amount of work for everyone, lowest number equals best economy
Where are ATP produced in the cell?
Mitochondria
How many kcal come from 1 g of carbohydrate?
4
The rate limiting enzyme of glycolysis is
PFK
Each spin of the Krebs Cycle provides how many ATP?
12
The net ATP production from fast glycolysis starting with glycogen is
3
For every FADH that enters the electron transport chain how many ATP are produced?
2
A hormone that mobilizes free fatty acids is
Epinephrine
Exercising at an intensity of 7 METs is classified as what intensity level
Vigorous
The most variable component of total daily energy expenditure is
Thermic effect of activity
One Liter of O2 is equal to ____ kcal of energy
5
The study of metabolic processes that yield or consume energy is ____?
Bioenergetics
Factors that can affect a VO2max test include____?
All of the above
Mode of test, economy of movement, genetics, sex
In which situation would EPOC be the smallest?
Running at 60% VO2max for 30 minutes
whatever the least % is for least amount of time
Increased enzyme availability ____ the speed of the catabolic reaction.
Increases
Which of the following is involved with neuromuscular fatigue?
A and B are correct
(A. Potassium leaves the intracellular space
B. Cholinesterase may become hyperactive
C. pH drops below 6.9
D. Accumulation of H+ ions)
Aerobically trained athletes will have which type of response in their oxygen deficit?
Low O2 deficit, meaning a shorter time to steady state O2 consumption
T/F: Supramaximal VO2 is possible and energy is supplied via aerobic energy sources.
False
T/F: The enzyme ATPase breaks apart ATP into ADP and an inorganic phosphate.
True
T/F: Fast glycolysis occurs in the miochondria.
False
T/F: Fat is stored in the adipocytes.
True
T/F: Hexokinase is responsible for the conversion of pyruvate to lactate.
False
NAD+ is oxidized to NADH
False
T/F: Both NADH and FADH enter at Gate 1 in the electron transport chain.
False
T/F: Oxygen is the last electron acceptor in the electron transport chain.
True
T/F: The goal of beta oxidation is to cut the carbon chain into 2 carbon molecules.
True
T/F: It is possible for an individual to have spot reduction for fat loss.
False
T/F: Indirect calorimetry for energy expenditure is used within the IYKYK ESPL.
True
T/F: Insulin is released from the adrenal medulla when blood sugar is low.
False
T/F: Resting metabolism is approximately 2.0 ml/kg/min.
False
T/F: Treadmills and cycle ergometers are the most commonly used ergometers in exercise physiology
True
T/F: Enzymes are consumed and destroyed in chemical reactions within the body
False
T/F: Individuals have enough stored ATP to last the first few seconds of exercise
True
T/F: Creatine Kinase is the most abundant enzyme in the body
True
T/F: As individuals age, VO2max typically declines around 1% per year after age 25-30.
True
T/F: The Harvard Fatigue Lab was directed by David Bruce Dill.
True
Phosphocreatine helps to prevent immediate decreases in ATP during power outputs of greater than 90% of VO2max
True
