The absorption of light energy by a photosystem:
A) boosts electrons to a higher energy level.
B) transfers an electron from a reaction center to accessory pigment molecules.
C) causes electrons to lose energy until they reach the reaction center.
D) causes electrons to be transferred from NADP+ to a reaction center.
Answer: A
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What is a contributing factor to an estuary's high productivity? a. The large amount of primary producers
b. The small amount of predators. c. The biomass of detritivores. d. The trapping of nutrients in sediments.
HIV is inactivated in the laboratory after a few minutes of sitting at room temperature, but the flu virus is still active after sitting for several hours. What are the practical consequences of these findings?
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Infection with influenzavirus is commonly diagnosed using
A) an immunoblot assay. B) viral neutralization tests. C) immunochromatographic assay. D) viral hemagglutination inhibition test. E) both immunochromatographic assay and viral hemagglutination inhibition test.
One method of release
What will be an ideal response?