Question

how many co₂ molecules are produced when three glucose molecules undergo cellular respiration? (1 point)
12
18
3
6

Explanation:

Step1: Recall cellular respiration equation

The general equation for aerobic cellular respiration of glucose ($C_6H_{12}O_6$) is $C_6H_{12}O_6 + 6O_2
ightarrow6CO_2+6H_2O$. One glucose molecule produces 6 $CO_2$ molecules.

Step2: Calculate for 3 glucose molecules

If 1 glucose molecule produces 6 $CO_2$ molecules, then for 3 glucose molecules, the number of $CO_2$ molecules is $3\times6$.
$3\times6 = 18$

Answer:

18 (corresponding to the second option in the multiple - choice list)