Answer:
The plants make food by the help of the process known as photosynthesis. This process can be defined as the conversion of solar energy into chemical energy by the help of carbon dioxide and water molecules in the leaves of the plant.
Leaves and stem of the plant have a green pigment called chlorophyll which is responsible for trapping sunlight and initiating the process of photosynthesis. Glucose is formed as a product of this reaction.
This glucose is then transported from the leaves to various parts of the plant body by phloem tissue. Every cell of the plant utilizes these glucose molecules for cellular respiration in the pressence of oxygen.
So, loss of chlorophyll in leaves will hinder the production of glucose and hence, cellular respiration will decrease in the plant cells.