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Respiration

AQA A level biology

QuestionAnswer
Stages of aerobic respiration Glycolysis, Link reaction, Krebs cycle, Oxidative phosphorylation
Location of glycolysis Cytoplasm
Stages of glycolysis Phosphorylation, oxidation
Glycolysis phosphorylation glucose phosphorylated from ATP -> glucose phosphate + ADP ATP used to add another phosphate -> hexose biphosphate hexose biphosphate split -> two triose phosphates
Glycolysis oxidation Triose phosphate oxidised/loses hydrogen -> two pyruvates NAD collects lost hydrogen ions -> reduced NAD
Products of glycolysis 2 pyruvate 2 reduced NAD 4 ATP total/ 2 ATP net
Which coenzymes are used in respiration? NAD and FAD
Location of Link reaction mitochondrial matrix
Link reaction Reduced NAD and pyruvate are actively transported to matrix pyruvate is oxidised to acetate (forming reduced NAD) carbon removed and CO2 forms acetate combines with coenzyme A to form acetylcoenzyme A (2C)
Products of the link reaction per glucose molecule 2 acetylcoenzyme A molecules 2 carbon dioxide molecules released 2 reduced NAD molecules
Location of Krebs cycle mitochondrial matrix
Created by: theosaurusrex
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