Glycolys

• What type of enzymes catalyse the oxidation reactions in glycolysis?

  Dehydrogenase enzymes
• How many ATP molecules are formed during glycolysis?

  Four ATP molecules
• What happens to hydrogen ions during glycolysis?

  They are taken up by NAD+
• What is formed when hydrogen ions are taken up by NAD+?

  Reduced NAD
• Why is the net ATP production in glycolysis two?

  Two ATPs are used and two produced
• Summarise process of glycolysis

  1. Glucose is phosphorylated using phosphate and energy from 2 ATP molecules
  2. Hexose phosphate splits into 2 triose phosphates
  3. Triose phosphates are oxidised to form pyruvate
• What do the oxidation reactions in glycolysis involve?

  • Removal of hydrogen atoms from triose phosphates catalysed by dehydrogenase enzymes
  • Hydrogen ions are taken up by NAD+ and used to form reduced NAD
  • 4 molecules of ATP formed from chemiosis
• Where does glycolysis happen

  Cytoplasm