Chapter 7, Problem 11PS

Summary Introduction

To determine:

The oxygen atoms in the glucose produced by photosynthesis come from H₂O or from CO₂ by using radioactive isotope.

Introduction:

Photosynthesis is a process in which plant absorbs solar light energy to convert it into chemical energy. Two cycles are present in photosynthesis: light cycle and dark cycle. The light cycle takes place in thylakoid of chloroplast while the dark cycles take place in the stroma of chloroplast. In the dark cycle, the carbon dioxide from environment react with the water in presence of product of a light reaction cycle (ATP and NADPH) to form sugar (glucose) and oxygen gas evolves from the reaction.