What makes light absorption in diatoms more effective than just using chlorophyll?
a. Surface-to-volume
b. Microbial loop
c. Frustule perforations
d. Accessory pigments
ANS: D
These accessory pigments allow more light frequencies to be absorbed. The yellow and brown
pigments in diatoms give them the same coloration. Information can be found in the section Most
Phytoplankton are Photosynthetic Autotrophs.
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