Answers (Graded A)
Oral ATP administration can ____ blood flow and may be effective during exercise
_____. - ANSWER-increase, recovery
While running on a treadmill, a subjects RER was measured at 0.75. This indicates the
primary fuel used during this run would be: - ANSWER-free fatty acids
Factors that influence the amount of water lost through sweating include all of the
following except:
- exercise intensity
- relative humidity
- body weight
- environmental temperature - ANSWER-body weight
In humans, glucose may be produced by gluconeogenesis, synthesizing it from all of the
following except:
- pyruvate
- fatty acids
- glycerol
- carbon skeletons of specific amino acids - ANSWER-fatty acids
_____ exerts the greatest effect on a sedentary person's TDEE - ANSWER-metabolism
during rest (RMR)
_____ supplementation can increase muscle power and force output when taken for 14
days at a daily dose of 2.5 grams - ANSWER-Betaine
Cholesterol is needed for which of the following:
- Gluconeogenesis
- Anti-proteolysis
- Steroid hormone synthesis - ANSWER-Steroid hormone synthesis
When an amino acid provides the body with energy, ____ - ANSWER-the liver must first
delaminate it
_____ protein isolate can _____ the strength decline after eccentrically-induced muscle
damage in healthy individuals. - ANSWER-whey, attenuate
Which of the following is false regarding caffeine consumption or supplementation.
- enhance endurance performance
- acts as a diuretic
, - decreases one's perception of pain
- all of the answers are correct - ANSWER-all of the answers are correct
Which of the following diets (assuming they are isocaloric) would likely result in the
greatest loss of fat mass while sparing lean body mass?
- 90% CHO, 5% PRO, 5% fat
- 40% CHO, 30% PRO, 30% fat
- 65% CHO, 30% fat, 5% PRO
- They all would work equally well - ANSWER-40% CHO, 30% PRO, 30% fat
What is the most common side effect from creatine supplementation reported in the
scientific literature? - ANSWER-weight gain
Carnosine is a dipeptide composed of which compounds? - ANSWER-histidine and
beta-alanine
Which of the following statements are true about protein's role as energy fuel during
physical activity? - ANSWER-it serves as energy fuel to a much greater extent than
perviously believed, depending on the energy expenditure and nutritional status
Probiotics may be beneficial for an athlete for all of the following reasons except:
- supports enhanced skin appearance
- may help decrease the incidence of URTI
- may help maintain an overall healthy immune system
- may enhance protein absorption - ANSWER-supports enhanced skin appearance
During the recovery period of high-intensity interval exercise, in skeletal muscle the ratio
of ATP:ADP will be elevated, which slows the activity of Phosphofructokinase.
Therefore, ingesting CHO during this time will primarily have which off the following
fates:
- fatty acid (palmitate) synthesis
- lipolysis
- glycogenolysis
- glycogenesis - ANSWER-glycogenesis
Vitamins play an important physiologic role related to ____. - ANSWER-metabolic
regulation
The main energy fuel during light to moderate exercise is ______. - ANSWER-fat
Most of the energy for ATP phosphorylation comes from ____ of the carbohydrate, lipid,
and protein consumed in the diet. - ANSWER-oxidation
Four weeks of beta-alanine supplementation (___ daily) significantly augments muscle
carnosine concentrations, thereby acting as a intracellular pH buff. - ANSWER-4-6g