NSCA Chapter 3

Conversion of food into usable forms of energy.

Breakdown of large molecules to small molecules eg-breakdown of carbohydrates into glucose

Synthesis of larger molecules from smaller molecules using energy released from catabolic reactions

Total of all the catabolic and anabolic reactions in the body

The carrier and regulation/storage unit of energy, transports chemical energy within cells for metabolism.

Glycogen-Stored in muscle Glucose-Delivered in blood

Composed of: -Adenine + Ribose =Adenosine -Three Phosphate Groups=Triphosphate

ATP with one phosphagen removed ("spent") ADP usually immediately recycled in mitochondria, where recharged and comes out ATP again.

ATP with two phosphagens removed

-Active at beginning of all exercise, supplies energy for 8-10 seconds. -Produces ATP by donating phosphate group to ADP, then once ATP spent goest back to ADP and phosphate group again donated to return back to ATP. -Anaerobic process, use for short/intense exercise.

-Anaerobic process, initially supplements the phosphagen energy system and then once phosphagen system spent glycoloysis becomes primary source for intense exercise up to 2 minutes. -Series of biochemical reactions during which glycogen or glucose to produce ATP

Aka Anaerobic Glycolysis(Energy needed at high rate eg weight lifting) End product (pyurvate) converted to lactic acid providing energy (ATP) at fast rate than slow glycolysis.

Aka Aerobic Glycolysis (Energy demand not as high and oxygen present in sufficient quantities eg low intensity aerobic class) Pyruvate transferred to mitochondra for energy production through oxidative system

End product formed when fast glycolysis occurs during periods of reduced oxygen availability

Decrease in available and energy and muscle contraction force during exercise