alleryStart learning →Which equation describes the breakdown of glucose?
AGlucose plus oxygen yields carbon dioxide, water and energy
BCarbon dioxide plus water plus energy yields glucose
CGlucose plus water yields carbon dioxide and oxygen
DOxygen plus energy yields glucose and carbon dioxide
Answer & Solution
Correct answer: A. Glucose plus oxygen yields carbon dioxide, water and energy
1. Living things consume sugar as a major energy source because sugar molecules store a great deal of energy in their bonds.
2. Breaking glucose down consumes six oxygen molecules and yields six carbon dioxide, six water and energy.
3. Energy appears on the product side, which marks this as a reaction that releases energy.
4. The second option is the reverse equation, the synthesis of glucose during photosynthesis, with energy as an input.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 6 "Metabolism", section 6.1 Energy and Metabolism_
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