Question

Photosynthesis is maximum in

• A. Green light
• B. Blue followed by red
• C. Red followed by blue
• D. Blue light

Answer 1

The correct option is C

Red followed by blue

The correct option is C.

Explanation for the correct option:

1. Photosynthesis is the process that involves the synthesis of organic food from inorganic substances with the help of chlorophyll in the presence of sunlight.
2. The rate of photosynthesis depends on certain factors, such as light, the concentration of carbon dioxide, water, and temperature.
3. When light having a wavelength ranging between 400-and 700 nm is absorbed by the plant, the rate of photosynthesis is the highest.
4. Red light is absorbed effectively by chlorophyll which ranges within this wavelength. It is utilized in the maximum amount.
5. This red light is followed by blue light which falls next to red in the visible spectrum, thus it is also absorbed in a very effective way for photosynthesis.
6. Therefore, the rate of photosynthesis is higher in the red light followed by the blue light.

Final answer: Photosynthesis is maximum in red light followed by blue.