AP BIOLOGY

Detailed explanation-1: -Wavelengths absorbed by chlorophyll and other photosynthetic pigments generate electrons to power photosynthesis. All photosynthetic organisms have chlorophyll a which absorbs violet-blue and reddish orange-red wavelengths. Chlorophyll a reflects green and yellow-green wavelengths.

Detailed explanation-2: -Green light is considered the least efficient wavelength in the visible spectrum for photosynthesis, but it is still useful in photosynthesis and regulates plant architecture. Sometimes one may hear that plants don’t use green light for photosynthesis, they reflect it.

Detailed explanation-3: -The above analyses on growth characteristics and photosynthetic characteristics indicated that yellow light had positive effects on plant growth, photosynthesis efficiency, and bioactive flavonoid accumulation than red or blue light.

Detailed explanation-4: -Green and yellow wavelengths of light are useless to most plants. What would you expect to happen if you compare the rate of photosynthesis in bright white light and in darkness? The rate of photosynthesis will be greater in bright white light than in darkness.