Question

Which one of the following molecules is a by-product of cellular respiration? A. Glucose B. Water* C. Oxygen D. Pyruvate

Answer 1

It's B.) Water. Glucose ${ C }_{ 6 }{ H }_{ 12 }{ O }_{ 6 }$ and Oxygen ${ O }_{ 2 }$ gets in, Carbon dioxide ${ CO }_{ 2 }$ and water ${ H }_{ 2 }O$ comes out from the reaction.

${ C }_{ 6 }{ H }_{ 12 }{ O }_{ 6 }(s)+6{ O }_{ 2 }(g)\rightarrow 6C{ O }_{ 2 }(g)+6{ H }_{ 2 }O(l)+heat$ is the exact reaction.