difference between glycolysis and kerb cycle
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Answer:
BASIS FOR COMPARISON GLYCOLYSIS KREBS CYCLE
Starts with Break down of glucose into pyruvate. Oxidize Pyruvate into CO2.
Also known as EMP (Embden-Meyerhof-Parnas Pathway or Cytolplasmic pathway). TCA (tricaboxylic acid) cycle, Mitochondrial respiration.
Role of Carbon dioxide No carbon dioxide is evolved in glycolysis. Carbon dioxide is evolved in Krebs cycle.
Site of occurrence Inside the cytoplasm. Occurs inside the mitochondria (cytosol in prokaryotes)
It can occur as Aerobically (i.e. in presence of oxygen) or anaerobically (i.e. in absence of oxygen). It occurs aerobically (presence of oxygen).
Degradation of molecule A glucose molecule is degraded into two molecules of organic substances, pyruvate. Degradation of pyruvate is completely into inorganic substances which are CO2 and H2O.
Consumption of ATP It consumes 2 ATP molecules, for the phosphorylation. It does not consume ATP.
Net gain Two molecules of ATP and two molecules of NADH, for every molecule of glucose is broken down. Six molecules of NADH2, 2 molecules of FADH2 for every two acetyl CoA enzyme.
Number of ATP produced The net gain of ATP is 8 (including NADH). The net gain of ATP is 24.
Oxidative phosphorylation No role of oxidative phosphorylation. Vital role of oxidative phosphorylation, and oxaloacetate is considered to play a catalytic role.
Step in the process of respiration Glucose is broken into pyruvate, and hence glycolysis is said as the first step of respiration. Krebs cycle is the second step of respiration.
Type of pathway It is the straight or linear pathway. It is a circular pathway.