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NTR 555 Final Exam Correct Answers 2024/2025 Update
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NTR 555 Final Exam Correct Answers 2024/2025 Update
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NTR 555 Final Exam CorrectAnswers 2024/2025 Update
cortisol is a stress hormone that is released at ___ rates during exercise.
increasing
The T-Tubule system connects the ___ to the inside of the cell
Plasma membrane
ATP is required for muscle contraction because the high-energy phosphate is used in the biochemical
reactions that shorten the distance between Z-lines. This concept of muscle contraction is known as
The sliding filament model
important proteins found in muscle cells include all of the following except
hemoglobin
glycogen is
the storage form of glucose in tissues such as muscle, liver and brain
VO2 max is defined as
maximum rate of O2 consumption during exercise
the normal quantity of glycogen in the muscle of an adult
200-500 g
in addition to providing energy, dietary lipids are also responsible for
providing structure to cell membranes
the percentage of energy that is derived from carbohydrates during exercise is least impacted by
the ambient temperature
The percentage of energy that is derived from during endurance exercise is least likely to be increased
by
, taking a carnitine supplement on top of a healthy diet
during exercise important pathways that shuttle nutrients between the liver and muscle use all of the
following combinations of nutrients except
methionine and homocysteine
the time to exhaustion in endurance exercise is usually the point at which the body can no longer make
adequate amounts of atp because of low levels of
glycogen
if a runner leaves the blocks at maximal speed and continues at maximal effort to the point
of exhaustion, his velocity will probably decrease after about 10 to 15 seconds, and
decrease again at 1 to 2 minutes.
Speed may increase slightly after 10 to 20 minutes but will
remain relatively constant or decrease gradually until she reaches a point of exhaustion,
when she drops to a very slow pace
- no remaining muscle and liver glycogen
- loss of muscle stores of phosphocreatine
- glucagon activates gluconeogenesis
- reduction in anaerobic glycolysis due to lactate intolerance
converts small hydrocarbon molecules to glucose in the liver
gluconeogenesis
directly generates most of the atp for the endurance exercise
oxidative phosphorylation
allows the muscle to increase its anaerobic metabolism
cori cycle
a catabolic pathway inside the mitochondria
beta oxidation
a catabolic pathway in the cytosol
glycolysis
Estimated requirement plus a safety factor to cover population variation 300 min/week of moderate to
vigorous PA
RDA
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