Engelmann concluded that chlorophyll in the chloroplasts is responsible for photosynthesis based on the which of the

following results?
a. Protons flow through the ATP synthase complex.
b. The action spectrum of photosynthesis matched the maximum production of oxygen by Spirogyra, with the
greatest accumulation of bacteria in the blue and red regions of the spectrum.
c. Bacteria exposed to the action spectrum for photosynthesis showed no preference to any particular color of
light.
d. Accessory pigments transfer some of the energy of excitation produced by green light to chlorophyll molecules.
e. Spirogyra cells each contain a long, spiral-shaped, emerald-green chloroplast embedded in the cytoplasm.


b

Biology & Microbiology

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Which group of organisms played an important role in shaping Earth’s atmosphere?

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Which of the following statements about molecular evolution is true?

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Periderm is produced by:

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What is meant by the counterflow of fluid through the limbs of the loop of Henle, and what is its role in the normal

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