A plant shows reduced photosynthesis during cloudy days. Explain why.
Photosynthesis reduces on cloudy days because light intensity becomes low, and light is a key factor for this process.
Key Factors
| Factor | Impact | Explanation |
|---|---|---|
| Low Light Intensity | Slows photosynthesis | Less sunlight means less energy for the process |
| Reduced Energy Supply | Affects reactions | Light dependent reactions do not work efficiently |
| Chlorophyll Activity | Limited efficiency | Cannot absorb enough light energy |
| Glucose Production | Decreases | Less food is formed |
Stepwise Understanding
Cloud cover blocks direct sunlight
Light intensity reaching leaves decreases
Light dependent reactions slow down
Less ATP and NADPH are produced
Overall photosynthesis rate drops
Important Concept
Rate of photosynthesis depends on light intensity, carbon dioxide, and temperature.
Real Insight
Even though photosynthesis does not completely stop on cloudy days, the rate becomes much lower, so plant growth may slow slightly over time.
So the main reason is reduced light energy available to drive the process.