Question

The scientist who discovered atmospheric $C{O_2}$ concentration to be suboptimal for photosynthesis is-
A. Godlewski
B. Bossingault
C. Dutrochet
D. De Saussure

Answer 1

Hint: The carbon dioxide ($C{O_2}$ ) is one of the important components for photosynthesis, so its concentration will definitely affect the rate of photosynthesis.

Complete answer:
-Plants follow the autotrophic mode of nutrition, i.e., they prepare their own food. The process by which they do so is termed Photosynthesis. In this process, green plants convert light energy into chemical energy. They capture light energy from the sun and utilize it to transform water, minerals, and carbon dioxide into oxygen and energy-rich organic compounds.
-Carbon dioxide acts as a source of electrons in the formation of organic molecules. Plants take in carbon dioxide and breathe out oxygen. Carbon dioxide is also the source of carbon that is needed by plants for the production of glucose.
-For most of the crops, the optimal amount of $C{O_2}$ required is $1000 - 1300ppm$. The lower levels are recommended for raising seedlings. The scientist who discovered this concept of suboptimal concentration of carbon dioxide gas was C.E. Godlewski.
So, the correct option is A.

Note: The studies have shown that if there is an increase in the concentration of carbon dioxide gas, the rate at which carbon is converted into glucose will also increase, and thus the rate of photosynthesis will also increase until any other limiting factor is present. This will ultimately enhance plant growth, but it will be the chief culprit of climate change.