A-LEVEL PE (OCR): PAPER 1 - Energy for Exercise
These flashcards cover fundamental concepts of cellular energy, including ATP as the primary energy source for muscular contraction, the role of the enzyme ATPase in ATP breakdown, and the definition of exothermic reactions that release energy. They provide a concise overview of how energy is produced and utilized in biological systems.
What is ADENOSINE TRIPHOSPHATE ?
a high-energy compound which is the only immediately available SOURCE OF ENERGY for MUSCULAR CONTRACTION
Key Terms
What is ADENOSINE TRIPHOSPHATE ?
a high-energy compound which is the only immediately available SOURCE OF ENERGY for MUSCULAR CONTRACTION
What at ATPase ?
an ENZYME which catalyses the BREAKDOWN of ATP
What is an EXOTHERMIC REACTION ?
a reaction that releases energy
What is ADENSONE DIPHOSPHATE ?
a compound formed by the REMOVAL of a PHOSPHATE BOND from ATP
What is an ENDOTHERMIC REACTION ?
a chemical reaction which absorbs energy
What is CREATINE KINASE ?
an enzyme which catalyses the BREAKDOWN of PHOSPHOCREATINE
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| Term | Definition |
|---|---|
What is ADENOSINE TRIPHOSPHATE ? | a high-energy compound which is the only immediately available SOURCE OF ENERGY for MUSCULAR CONTRACTION |
| an ENZYME which catalyses the BREAKDOWN of ATP |
What is an EXOTHERMIC REACTION ? | a reaction that releases energy |
What is ADENSONE DIPHOSPHATE ? | a compound formed by the REMOVAL of a PHOSPHATE BOND from ATP |
What is an ENDOTHERMIC REACTION ? | a chemical reaction which absorbs energy |
What is CREATINE KINASE ? | an enzyme which catalyses the BREAKDOWN of PHOSPHOCREATINE |
What is a COUPLED REACTION ? | where the products of one reaction are used in another reaction |
What are the 3 energy systems ? |
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What is PHOSPHOFRUCTOKINASE (PFK) | an ENZYME which catalyses the BREAKDOWN of GLUCOSE (glycolysis) |
What is the full name of the enzyme PFK ? | PHOSPHO - FRUCTO - KINASE |
What is ANAEROBIC GLYCOLYSIS ? | the partial breakdown of glucose into PYRUVIC ACID |
What is LACTATE DEHYGROGENASE (LDH) ? | an ENZYME which catalyses the CONVERSION of PYRUVIC ACID into LACTIC ACID |
What is the full name of the enzyme LDH ? | LACTATE DE - HYDRO - GENASE |
ATP-PC SYSTEM : TYPE OF REACTION | anaerobic |
ATP-PC SYSTEM : SITE | sarcoplasm |
ATP-PC SYSTEM : FOOD FUEL | phosphocreatine |
ATP-PC SYSTEM : ENZYMES | creatine kinase |
ATP-PC SYSTEM : ATP YIELD | 1 : 1 |
ATP-PC SYSTEM : STAGES |
energy + P + ADP (ENDOTHERMIC) |
ATP-PC SYSTEM : BY-PRODUCTS | none |
ATP-PC SYSTEM : INTENSITY | very high intensity |
ATP-PC SYSTEM : DURATION | 2 - 10 secs |
GLYCOLYTIC SYSTEM : TYPE OF REACTION | anaerobic |
GLYCOLYTIC SYSTEM : SITE | sarcoplasm |
GLYCOLYTIC SYSTEM : FOOD FUEL USED | glycogen / glucose |
GLYCOLYTIC SYSTEM : ENZYME | PFK and LDH |
GLYCOLYTIC SYSTEM : YIELD | 1 : 2 |
GLYCOLYTIC SYSTEM : STAGES | anaerobic glycolysis: glycogen -> glucose -> pyruvic acid + energy lactate pathway: pyruvic acid -> lactic acid energy + 2P + 2ADP -> 2ATP (ENDOTHERMIC) |
GLYCOLYTIC SYSTEM : BY-PRODUCTS | lactic acid |
GLYCOLYTIC SYSTEM : INTENSITY | high intensity |
GLYCOLYTIC SYSTEM : DURATION | 10s - 3min (peak at 1min) |
What is the KREB'S CYCLE ? | the SECOND STAGE of the aerobic system producing energy to RESYNTHESISE 2 ATP in the MITOCHONDRIA MATRIX |
What is the ELECTRON TRANSPORT CHAIN (ETC) ? | the THIRD STAGE of the aerobic system producing energy to RESYNTHESISE 34 ATP in the MITOCHONDRIA CRISTAE |
What is the ENERGY CONTINUUM ? | relative CONTRIBUTION of each energy system to overall EVERY PRODUCTION depending on INTENSITY and DURATION of the activity |
PREDOMINANT ENERGY SYSTEM… | ATP-PC system |
PREDOMINANT ENERGY SYSTEM… | Glycolytic system |
PREDOMINANT ENERGY SYSTEM… | Aerobic system |
What is INTERMITTENT EXERCISE ? | activity where the INTENSITY alternates either during…
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What is a THRESHOLD ? | the point at which an athlete's PREDOMINANT energy production moves from one energy system to another |
What are WORK : RELIEF PERIODS ? | the VOLUME of RELIEF in relation to the VOLUME of WORK PERFORMED |
How do RECOVERY PERIODS affect thresholds ? | anaerobic activities = ATP-PC and Glycolytic = quickly replenished = breaks aid recovery (basketball) |
How does FITNESS LEVEL affect thresholds ? |
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What are the other factors that affect energy production ? |
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How does POSITION OF THE PLAYER affect energy systems ? |
| - atp-pc for dives, kicks, defense |
How do TACTICS AND STRATEGIES affect energy systems ? |
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How does LEVEL OF COMPETITION affect energy systems ? |
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How does the STRUCTURE OF THE GAME affect energy systems ? |
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