Halobacterium Has a Photosynthetic Membrane That Is Coloured Purple

question 33

Multiple Choice

Halobacterium has a photosynthetic membrane that is coloured purple. Its photosynthetic action spectrum is exactly complementary (opposite to) the action spectrum for green plants. What wavelengths of light do the Halobacterium photosynthetic pigments absorb?

• A)red and yellow
• B)blue, green, and red
• C)green and yellow
• D)red and green
• E)blue and red

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