As carbon dioxide increases in atmosphere rate of photosynthesis also increases but nowadays its increasing rapidly due to which the photosynthesis rate after reaching saturation starts declining but other factors are stable in environment and hence carbon dioxide is a limiting factor

Limiting Factor for Photosynthesis: CO2

Photosynthesis is a process that converts light energy into chemical energy stored in the form of glucose. The process of photosynthesis requires several factors like light, temperature, water, and carbon dioxide (CO2). However, among all these factors, CO2 is considered as the major limiting factor for photosynthesis.

Explanation:

Here's why CO2 is considered as the major limiting factor for photosynthesis:

1. Photosynthesis is a process that involves the uptake of CO2 from the atmosphere. This CO2 is then converted into glucose through a series of chemical reactions. Therefore, the rate of photosynthesis is directly proportional to the amount of CO2 available.

2. However, the concentration of CO2 in the atmosphere is very low (around 0.04%). Therefore, the rate of photosynthesis is limited by the availability of CO2.

3. When the concentration of CO2 increases in the atmosphere, the rate of photosynthesis also increases. This is because the plants can take up more CO2 and convert it into glucose.

4. On the other hand, when the concentration of CO2 decreases, the rate of photosynthesis decreases. This is because the plants cannot take up enough CO2 to sustain the process of photosynthesis.

Conclusion:

In conclusion, CO2 is considered as the major limiting factor for photosynthesis because the rate of photosynthesis is directly proportional to the amount of CO2 available. Therefore, it is important to maintain an adequate level of CO2 in the atmosphere to ensure the proper growth and development of plants.