Question

energy and matter conservation quick check how many co₂ molecules are produced when three glucose molecules undergo cellular respiration? (1 point) 3 18 6 12

Explanation:

Step1: Recall glucose respiration CO₂ yield

The balanced chemical equation for aerobic cellular respiration of one glucose molecule is:

$$\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 ightarrow 6\text{CO}_2 + 6\text{H}_2\text{O}$$

This shows 1 glucose produces 6 $\text{CO}_2$ molecules.

Step2: Calculate for 3 glucose molecules

Multiply the per-glucose $\text{CO}_2$ yield by 3:
$$6 \times 3 = 18$$

Answer:

18 (Option: 18)