Aerobic systems
what is the most important energy molecule in cells
ATP( adenosine triphosphate)
where does Glycolysis occur?
in the sarcoplasm of muscle cells
what is the primary source of fuel for Aerobic Metabolism?
carbohydrates, triglycerides, protein
What is the primary source of fuel for Anaerobic metabolism?
The Use of ATP, PC system and glucose
what are 2 major enzymatic systems aerobically to metabolize ?
The Krebs cycle and the Electron transport chain
what enzyme replenishes ATP
Creatine Kinase
What recovery decreases blood lactate faster?
Active recovery (light to moderate) aerobic exercise after exercise decreases blood lactate faster than no physical activity, likely due to use of lactate for aerobic metabolism during recovey
The lag in oxygen uptake at the beginning of exercise?
oxygen deficit
What needs to happen first for pyruvate to be able to enter aerobic pathways
Pyruvate is converted to acetyl- Coa
what is the primary cause of decreased muscle force and fatigue?
the increased Acidity from the break down of ATP and production of H+
Beta Oxidation requires how many ATP per fatty acid
2 ATP
Pyruvate from Gylolysis can be converted to?
Lactate
Aerobic enzymatic activity increases?
Byproduct of increased mitochondria & increased mitochondrial size, increased substrate availability
Glycerol can’t be metabolized by muscle, but can be used to synthesize glucose at the liver is?
Gluconeogenesis
aerobic metabolism is the primary source of energy when?
At rest or during extended low-intensity activities.
Why is EPOC higher in anaerobic and intense exercise?
its due to anaerobic metabolism, elevated temperature, and hormones
why is the Krebs cycle called a cycle?
If aerobic metabolism does not accept hydrogens, what happens to pyruvate?
pyruvate can accept the hydrogens to become lactate also known as lactate energy system
what is the slow phase in Oxygen Debt?
Aerobic metabolism of intramuscular and blood lactate; 70% of the lactate aerobically metabolized, 20% synthesize glucose, and 10% synthesize gluconeogenic amino acids
In theory what happens when at maximal exercise intensity?
100% carbs as anaerobic metabolism becomes predominant source of energy, resulting in fast-twitch muscle fibers recruited, hormonal changes,and increased lactate.