Please enable JavaScript.
Coggle requires JavaScript to display documents.
Aerobic Energy System - Coggle Diagram
Aerobic Energy System
STAGE 1
- AEROBIC GLYCOLYSIS
- MUSCLE SARCOPLASM
- O2 PRESENT- STOPS BUILD UP OF LACTIC ACID
-
STAGE 2
- KREBS CYCLE- MATRIX OF MITOCHONDRIA
-
STAGE 3
- ELECTRON TRANSPORT CHAIN- CRISTAE OF MITOCHONDRIA
- hydrogen atoms carried by H+ carriers- NADS and FADS
- H+ atoms split into Hydrogen ions (H+) and Hydrogen electrons (e-)
- hydrogen ions + O2= WATER
- Hydrogen electrons= energy
-
Summary
- breaks down glycogen, glucose and fats for energy
- presence of oxygen coverts glucose on to H2O and CO2
ALTERNATIVELY-
- fats are broken down by (lipase enzyme) into free fatty acids and glycerol
- FFA are broken down by (Beta oxidation) into Acetyle Coenzyme A
- FFA produce more Acetyle CoA than glucose
- FFA require 15% more oxygen than glucose
- glucose preferred energy fuel for mod-high intensity
- then Krebs cycle is continued
ADV
- large FFA and glycogen stores available
- efficient ATP resynthesis from FFA with sufficient O2
- Large ATP yield- 38 ATP/1 glucose
- provides energy for low/mod intensity high duration 3min-1hr+
- no fatiguing by products as CO2 and H2O are easily removed
DISADV
- slower rate of ATP resynthesis
- requires more O2 and 15% more for FFA
- more complex series of reactions
- delay of O2 from CV system- cannot be used for ATP at the start of exercise
- limited energy for high intensity short duration activities