Chapter 4 Flashcards
how does metabolism behave during EPOC? (excess post-exercise oxygen consumption)
remains elevated
what usually happens after 90 minutes of exercise?
the majority of muscle glycogen stores are depleted
during glycolysis, in presence of oxygen, pyruvic acid is converted into which important molecule in metabolism?
Acetyl coenzyme A
what is an example of physical activity where the oxidative state is primarily used?
jogging for thirty minutes
which of the following energy pathways is used for activities lasting between 30 and 50 seconds?
glycolysis
when an exercise is high intensity and lasts about 10 seconds, which of the following energy pathways is predominantly in use?
ATP-PC
which term refers to the assistance of amino acids (protein) in energy production during period of starvation?
gluconeogenesis
a client runs a mile in 6 min and 30 seconds. Which of the following energy systems is the client primarily using to produce energy?
oxidative
what is a characteristic of glycogen?
it is a complex carbohydrate that can be rapidly broken down into glucose
what is the first step in fat oxidation called?
beta- oxidation
which metabolic pathway produced the most ATP?
oxidative phosphorylation
the study of how energy transforms within living systems through different chemical reactions is known as?
bioenergetics
what is metabolism?
how the body acquires, transports, uses and then disposes of nutrients in the body
when are carbohydrates used as an energy source?
high intensity, daily energy expenditure
when are fats used as an energy source?
prolonged exercise, marathon, low intensity exercise
