During cellular respiration, when glucose is broken down into pyruvic acid (a process known as glycolysis), two main products are formed in addition to ATP:
- NADH (reduced Nicotinamide adenine dinucleotide) - which acts as an electron carrier.
- Pyruvic acid
So, from the options given, you could infer that while "oxygen," "sugar," and "water" are not directly produced from glycolysis, "heat" is often released as a form of energy during metabolic processes.
However, in glycolysis specifically, the most relevant products besides ATP would be NADH and pyruvic acid.
If you're strictly choosing from the options provided, the response could be "heat" in the context of energy release during metabolism, but note that it is not a direct product of the glycolysis reaction itself.
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