Chapter 20, Problem 19P

(a)

Summary Introduction

To determine:

The compound X which was first compound to become labeled with ${}^{\text{14}}\text{C}$ and the Y which was unlabelled.

Introduction:

Photosynthesis is a process in which the solar energy that is sunlight is used for the formation of chemical energy that is glucose from the carbon dioxide and water. During the photosynthesis, oxygen gas is evolved. This process involves two types of reactions: light reaction and dark reaction.

(b)

Summary Introduction

To determine:

The condition in which X became labeled quickly, but lost its radioactivity with time, whereas Y became more radioactive with time is to be determined.

Introduction:

Photosynthesis is a process in which the solar energy that is sunlight is used for the formation of chemical energy that is glucose from the carbon dioxide and water. During the photosynthesis, oxygen gas is evolved. This process involves two types of reactions: light reaction and dark reaction.