Which of the following explains why photosystem units contain a high proportion of antenna pigments compared to reaction centers?
a. antenna pigments split water
b. antenna pigments reduce the reaction centers
c. antenna pigment contain rubisco
d. antenna pigments allow more wavelengths of light and more photons to be captured, increasing the efficiency of light capture.

The correct answer is: D. Antenna pigments allow more wavelengths of light and more photons to be captured, increasing the efficiency of light capture.

The photosynthetic pigments can be part of the antenna pigments or part of the reaction center. The role of the antenna pigments (large number of protein-bound pigment molecules) is to absorb photons and transfer their energy to the reaction center. Simply saying, antenna pigments are light-harvesting complexes. They are composed of polypeptides, that bind chlorophyll a, chlorophyll b, carotene and xanthophylls.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called