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On the basis of the data in the table below, answer problems "a" and "b." (10 points )

The absorption spectra from pigments extracted from two different types of plants A and B have been determined. The absorption data are shown in the table below. High, medium, and low refer to the amount of light that is absorbed by the plant pigments.

Wavelength of Light Plant A Plant B
350 nm Low Medium
400 nm (violet) Med Med-high
450 nm (blue) High Med-high
500 nm (green) Low High
550 nm (green) Low Med-high
600 nm (yellow) Med Med
650 nm (orange) High Low
700 nm (red) Med-low High

a. What color is each plant? describe.

b. Leaves from each of these plants are each placed in a closed system container that has a small opening through which one can measure photosynthesis-derived oxygen production. What will the results be for each plant if light only in the 650 nm range is supplied? 500 nm range? 450 nm range? describe. (Hint, the results would be data for action spectra.)

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