Question

The chemical reactions associated with photosynthesis can be summarized with the following chemical equation: 6CO2 + 12H2O + energy → C6H12O6 + 6O2 + 6H2O


Table 1 lists wavelength ranges for visible light and the color frequently associated with each range.



Figure 1 shows the relative absorption of light by chlorophyll a and chlorophyll b versus the wavelength of light from 400 nm to 750 nm.



Figure 2 shows the average rate of photosynthesis at various wavelengths as a percent of the average rate of photosynthesis at 670 nm.



Based on Table 1 and Figure 1, which color of light is associated with the wavelength of light that results in the greatest absorption by chlorophyll b?

(1 point)
Responses

Yellow
Yellow

Blue
Blue

Red
Red

Green

Answer 1

Blue

Chlorophyll b shows its largest absorption peak around ~450 nm, which (per Table 1) falls in the blue portion of the visible spectrum.