NEETBotanyPhotosynthesis in Higher Plants
Select the incorrect statement regarding the graph given below.
Options
- AThere is a linear relationship between incident light and Carbon dioxide fixation rates at low light intensiti
- BAt higher light intensities, gradually the rate does not show further increase as other factors become limitin
- CLight saturation occurs at 10 percent of the full sunlight.
- DIncrease in incident light beyond a point causes the breakdown of chlorophyll and an increase in photosynthesi
Correct answer
D. Increase in incident light beyond a point causes the breakdown of chlorophyll and an increase in photosynthesi
Step-by-step solution
We need to distinguish between light quality, light intensity and the duration of exposure to light, while discussing light as a factor that affects photosynthesis.There is a linear relationship between incident light and CO2 fixation rates at low light intensities. At higher light intensities gradually the rate does not show further increase as other factors become limiting (Figure 11.10). What is interesting to note is that light saturation occurs at 10 percent of the full sunlight. Hence, except for plants in sh