Question

complete the sentences about the absorption spectrum.

1. a green pigment likely absorbs green light.
2. chlorophyll absorbs red and blue wavelengths of light best.
3. a 430nm pigment likely absorbs blue light.
4. carotenoids absorb light in the blue and (click to select) region of the spectrum.

Explanation:

1. A green pigment appears green because it reflects green light rather than absorbing it.
2. Chlorophyll has absorption peaks in the red and blue - light regions, which is why it absorbs these wavelengths best for photosynthesis.
3. Light with a wavelength of 430nm falls within the blue - light range.
4. Looking at the carotenoids' absorption spectrum in the graph, it has absorption in the blue and green - yellow region.

Answer:

1. reflects
2. absorbs
3. blue
4. green - yellow