Flashcards
Energy System
Cards in this deck (13)
- 1ATP Overview-1 Adenosine, 3 Phosphates
-Only compound to create movement
-ATPase enzyme breaks one of the phosphate bonds create ADP
-Enough energy to last for 2secs - 2ATP-PC Overview-Phosphate joins with creatine to make Phosphocreatine, main energy source
-Creatine kinase enzyme detects high levels of ADP, breaks PC bond
PC -> P + C + Energy
Energy + ADP + P=1 ATP resynthesised
- Lasts for 8-10 secs - 3Advs and Disadvs of ATP-PCAdvs:
-Energy for explosive movements
-Resynthesise ATP Very fast <10secs
Disadvs:
-Energy only for 10 secs
-Only 1 ATP can be resynthesised - 4Anaerobic Glycolytic system Overview-Carbs stored as Glycogen which get converted to Glucose process called Glycolysis
-Phosphofructokinase enzyme breaks down glycogen to glucose to produce 2 ATP
-Over time a mild acid called pyruvic acid forms and if no oxygen is available then the that acid builds up to create lactic acid which causes fatigue, soreness, pain
-Lasts for 1-3mins - 5Advs and Disadvs of the glycolytic systemAdvs:
-ATP can be fairly quickly resynthesised
-Work at a high intensity for around 2-3 mins
Disadvs:
-Lactic acid built up causing fatigue which decreases performance - 6Aerobic system-Pyruvic acid gets oxidised to create Acetyl Co-A Enzyme which moves into the Krebs Cycle which happens at mitochondria matrix
3 products from the Krebs cycle:
- 2 ATP are resynthesised
-CO2 as a waste products
-Electron transport chain were electrons from the krebs cycle are transported through and 34 ATP are resynthesised
-Hydrogen ions split which go into the electron transport chain, while hydrogen molecules combines with oxygen to create water - 7Excess post oxygen consumption (EPOC)-return of energy systems back to resting levels
--oxygen consumption following exercise remains high - 8First 2-3 mins of EPOC Fast replenishment stage-restore ATP
-Restore PC- 50% within 30 secs
-re-saturate myoglobin - 9Component 2- slow replenishment stage-Removal of lactic acid
-maintenance of breathing and heart rate
-glycogen replenishment
-increase in body temperature - 10Lactate threshold (OBLA)point during exercise which lactic acid quickly accumulates
Onset Blood Lactate accumulation - 11Factors affecting lactate accumulation-Exercise intensity, higher the intensity the faster OBLA occurs
-Muscle fibre types, type 1 produces less lactate
-Rate of blood lactate removal
-Respiratory exchange ratio (RER) - 12Ways of measuring blood lactate-indirect calorimetry
-lactate sampling
-V02 max test
-RER - 13RERRatio of CO2 produced compared to the oxygen consumed
Formula=C02 expired per min(VCO2)/oxygen consumed per min(V02)
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- A level A-Level PE-Mr Perry Flashcards on Energy System, created by Filip Pluszczewski on 12/05/2022.
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- Filip Pluszczewski
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