BRAINCAKEAnaerobic Respiration - Plants and Microorganisms.
For glycolysis to continue NAD must be continuously regenerated so the hydrogen and electron must be released from reduced NAD i.e. reduced NAD must be oxidised. In the absence of oxygen, the final electron acceptor in the electron transport chain, the redox reactions cannot proceed and reduced NAD cannot be oxidised by the ETC.
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Key terms in this lesson
- glycolysis
- The first stage of respiration, occurring in the cytoplasm, in which glucose is split into two molecules of pyruvate with a net yield of 2 ATP and reduced NAD.
- pyruvate
- The three-carbon end product of glycolysis, which enters the mitochondrion for the link reaction in the presence of oxygen or is reduced to lactate or ethanol in its absence.
- electron transport chain
- A series of protein complexes in the inner mitochondrial (or thylakoid) membrane that pass electrons along a chain of redox reactions, pumping protons across the membrane to generate a proton gradient.
More in Respiration
- Lysis
- Substrate Level Phosphorylation
- The Link Reaction
- The Krebs Cycle.
- oxidative phosphorylation
- ATP Synthase
- ATP Synthase
- Anaerobic Respiration - Mammals
All 12 lessons in Respiration · All AQA A-level Biology topics