Question
A plant is provided with the ideal conditions for photosynthesis and supplied with isotope 14 CO2. When the products of the process are analysed carefully, what would be the nature of products?
Glucose and oxygen are labelled
Oxygen is labelled, but glucose is normal
Glucose and oxygen are normal
Glucose is labelled, but oxygen is normal
Solution
D.
Glucose is labelled, but oxygen is normal
In the process of photosynthesis
Plants manufacture glucose from H2O and CO2 and oxygen gas is released. So, due to the isotopic carbon of CO2, only glucose will be labelled, but oxygen will be normal.