Energetics

Define energetics:

formation of ATP via metabolic pathways

ATP has the lifespan of around:

6 minutes

Does the heart ever run out of ATP?

no

Aerobic respiration occurs in:

mitochondria

The 3 energy transfer pathways are:

coupled reaction of ADP+CP=ATP, Anaerobic respiration pathway, and Aerobic Respiration pathway

Define the coupled reaction of ADP+CP=ATP

Creatine phosphate transfers a phosphate group to ADP to quickly regenerate ATP for muscle contraction.

What is the quickest energy transfer?

Coupled reaction of ADP+CP=ATP

Anaerobic respiration pathway:

Requires no oxygen; known as fermentation to create ATP and is accompanied by lactic acid fermentation

Aerobic Respiration Pathway:

Slowest ATP regeneration process, used for aerobic activities like jogging, and has a citric acid cycle

Myoglobin:

stores oxygen in muscle and has a greater affinity for oxygen than hemoglobin

Oxygen debt definition:

amount of oxygen needed by the muscle cells after exercise to restore balance

Oxygen debt does what?

decreases ATP, increases lactic acid, and decreases oxygen

How is oxygen debt replaced?

enough oxygen is supplied to the liver to convert lactic acid to pyruvate