Electrons from the “quinone pool” in purple bacteria are used to reduce NAD+ in a process called

a. ATP synthase (ATPase) complexing.
b. proton motive force.
c. reverse electron transport.
d. oxygenic photophosphorylation.


Answer: C

Biology & Microbiology

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What shape do strands of DNA take in a eukaryotic cell before they are packed?

a. Circular b. Linear c. Folded d. Spiral

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Rank the elements carbon, sodium, calcium, and iodine in order of decreasing number of valence electrons

A. CNaCaI B. ICaNaC C. ICCaNa D. CCaNaI

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Given what you now know, what information is most likely to produce the correct answer?

What will be an ideal response?

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