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Read the Core Logic of Cellular Respiration
Cellular respiration is controlled oxidation that transfers energy from fuel molecules into ATP.
NSEJS · Respiration in Plants · 3 linked questions · 100% coverage
Know this first
Living-system questions are solved by matching a structure or organism to its function, process and stated condition.
Structure · The part being namedFunction · What that part doesCondition · The situation that changes the answer
Study deeper: NCERT Science · Respiration in Plants
Follow energy, not just gases
Respiration releases energy through enzyme-controlled steps. Carbohydrates are commonly preferred fuels; other substrates can also enter. ATP captures part of the released energy.
Separate respiration from combustion
Both can use oxygen and release energy, but cellular respiration is enzyme-controlled, occurs in cells and conserves usable energy as ATP. Combustion is rapid and uncontrolled and does not make ATP.
OlympIQ exam lens
- ✓Respiration is stepwise and cellular.
- ✓Carbohydrates are preferred, not exclusive, fuels.
- ✓Combustion releases energy but does not conserve it as ATP.
OlympIQ trap
Do not treat similar end products as proof that respiration and combustion are the same process.
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