Question

question 6 of 10
how many carbon dioxide molecules are needed to make a single glucose molecule?
a. 18
b. 6
c. 24
d. 3

Explanation:

Step1: Recall the photosynthesis equation

$$6CO_{2}+6H_{2}O \xrightarrow{light} C_{6}H_{12}O_{6}+6O_{2}$$
In the photosynthesis reaction, 6 molecules of carbon dioxide ($CO_{2}$) are used to produce 1 molecule of glucose ($C_{6}H_{12}O_{6}$). So, 6 carbon dioxide molecules are needed to make a single glucose molecule.

Answer:

B. 6