ATP and Respiration Notes - Detailed

Detailed notes on ATP structure and suitability to role and all the stages involved in aerobic and anaerobic respiration.



Anaerobic Respiration in Plants and Animals

The Link Reaction

The Krebs Cycle

Oxidative Phosphorylation

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AQA Biology Unit 4: Section 2 ­ Energy Supply

ATP & Cellular Respiration

Cellular Respiration ­ the process of deriving energy from glucose (in the form of ATP).
Before energy can be utilised by our cells it must be turned into ATP (Adenosine Triphosphate) ­ a
specific shortterm energy storage…

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AQA Biology Unit 4: Section 2 ­ Energy Supply

Bring together iP + ADP to form ATP ( ATP synthase ­ an enzyme)
Transport electrons and protons in the form of Hydrogen ( NAD & NADH , and FAD & FADH2 ­
coenzymes and reduced coenzymes )
Coenzymes are molecules…

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AQA Biology Unit 4: Section 2 ­ Energy Supply

Krebs Cycle
This is an AEROBIC REACTION: can only occur when oxygen is present.
Occurs across the innermembrane of the mitochondria.

Acetyl CoA (2C ) combines with Oxaloacetate (4C Compound). Citric Acid (or Citrate ) is formed (a
6C Compound ).…

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AQA Biology Unit 4: Section 2 ­ Energy Supply

pumped. Therefore, less protons are pumped across the membrane per FADH2 , meaning less
ATP is formed as a result.

During Oxidative Phosphorylation therefore, 34 ATP molecules are produced. Therefore, from one
glucose molecule, 38 ATP are produced altogether (4 ATP…


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