Question

what is the source of carbon in a glucose molecule produced by photosynthesis?
a sunlight
b water
c carbon dioxide

Explanation:

Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen. The chemical formula for photosynthesis is \(6CO_2 + 6H_2O \xrightarrow{light} C_6H_{12}O_6+6O_2\). In this formula, \(CO_2\) (carbon dioxide) provides the carbon atoms for glucose (\(C_6H_{12}O_6\)). Sunlight provides energy for the reaction, and water (\(H_2O\)) provides hydrogen and oxygen atoms (but not carbon).

Answer:

C. carbon dioxide