Exam 2 Flashcards
What is a calorie?
The unit of energy used in biological systems
During what form, of exercise might the PCr system be highest?
a 100m sprint
Anaerobic glycolysis is
moderately fast
Anaerobic systems _______ require oxygen and take place in the _______.
do not, cytosol
What is a major sign of fatigue
Low ATP + High ADP
Energy in food transfers directly into cells for biological work. True or False?
False
As exercise intensity increases blood lactate concentration __________.
Increases
A dietary supplement of creatine is usually between ________.
3-5 g/day
Fatigue occurs due to ______ in the creatine phosphate system.
CrP depletion
Where is creatine phosphate stored?
in muscles
What is not a major source of creatine?
Vegetables
Fatigue occurs due to _______ in anaerobic glycolysis.
decreased pH
Creatine is noted to be highly effective for ________ sports and weakly correlated with _______ sports.
Strength, endurance
The CPr system is _________.
Very fast
During what form of exercise might the oxidative energy system be used.
An ultra-endurance race
The speed at which ATP is split increases as exercise intensity ____________.
increases
___________ is more important than __________ in regard to creatine supplementation.
Daily use, timing
Which system helps replenish ATP? Creatine Phosphate, Anaerobic Glycolysis, Oxidative Phosphorylation.
All of these
During what form of exercise might glycolysis be the main energy system?
Running 1 mile
Creatine is stored similarly in males and females. True or False
False
can you define energy in terms of size, shape, or mass? True or False?
False
The most common electron-accepting compounds are _______ and ________.
NAD, FAD
What does NAD stand for?
Nicotinamide Adenine Dinucleotide
Oxidative phosphorylation is ________.
Slow
ATP is hydrolyzed, or split, to release energy for exercise reducing it to ______.
ADP
Fatigue occurs due to _______ in the creatine phosphate system.
CrP depletion
Food is to carbohydrates, fats, and proteins, as energy is to ________.
ATP