Question

What caused the amount of radioactively labeled glucose to decrease after the light was switched off in the experiment?

A) Glucose was converted into carbon dioxide and water.
B) Light directly broke down glucose molecules.
C) Radioactive carbon was expelled from the cells.
D) Glucose was transformed into ATP.

Answer 1

After the light is switched off, the amount of radioactively labeled glucose decreases because glucose is converted into carbon dioxide and water through the process of cellular respiration.

Step-by-step explanation:

After the light is switched off in the experiment, the amount of radioactively labeled glucose decreases because glucose is converted into carbon dioxide and water (option A). During the process of cellular respiration, glucose is broken down in the cells to release energy. This process involves the complete oxidation of glucose, resulting in the production of carbon dioxide and water as byproducts.