Answer:
In the process of respiration, energy is released from glucose molecules and stored in smaller ATP molecules.
Explanation:
Among carbohydrates, protein and fat, carbohydrates are metabolized first on respiration.
- Glucose first breaks into pyruvic acid (Glycolysis)
- Pyruvic acid forms acetyl coA (Link reaction)
- Acetyl coA enters into the kreb cycle, where ATP is formed.
- ATP formed through substrate level phosphorylation (direct ATP) and Electron transport chain (indirect ATP).
- NADH2 and FADH2 formed during respiration enters into ETC where they form ATP through oxidative phosphorylation.
Thus, we can say that the correct option is D. Glucose, ATP.
Learn more about cellular respiration here:
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