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  4. The diagram below shows three plants with identical leaf surface areas: <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/b-obyunr94ai8m.png /> Assuming all other conditions were identical for all three plants, which of the plants would likely to photosynthesize slowest and fastest.

Q. The diagram below shows three plants with identical leaf surface areas:
Question
Assuming all other conditions were identical for all three plants, which of the plants would likely to photosynthesize slowest and fastest.

 1613  229 NTA AbhyasNTA Abhyas 2020Photosynthesis in Higher Plants Report Error

Solution:

Photosynthesis is a process of using light energy to make glucose. The main component helping in making use of light energy is the pigment chlorophyll. This pigment is green in colour, which means it will reflect the green wavelength of the visible spectrum. It will not be active in green light as it cannot use it. Chlorophyll is more active in red and blue light and rate of photosynthesis increases when exposed to such light. In the given arrangement, Z plant will show least speed for photosynthesis due to green light and Y will show the highest speed due to red light. At X, chlorophyll activity will be low due to very low temperature.