Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular respiration in that
A) it involves an electron transport chain.
B) energy is stored in the form of a proton (H+) concentration difference.
C) generation of ATP is driven by a flow of protons (H+) through ATP synthase.
D) the final electron acceptor is NADP+ and not oxygen.
Answer: D
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Propose an experiment to identify members capable of assimilating monomers of lignin within a microbial community
What will be an ideal response?
In the Hershey-Chase experiments, the radioactive tracers 32P and 35S were used to track DNA and protein,
respectively, because _____.
a. bacterial DNA contains sulfur and viral DNA contains phosphorus b. viral DNA contains sulfur and bacterial DNA contains phosphorus c. only DNA contains phosphorus and only protein contains sulfur d. DNA has more sulfur than protein, and protein has more phosphorus than DNA
e. protein has more sulfur than DNA, and DNA has more phosphorus than proteinWhittaker's classification included kingdom Monera, which included all prokaryotes. Why is this classification obsolete?
A. Based on fossil evidence, this group has been divided into three newly named kingdoms. B. The prokaryotes, which were included in this kingdom, are now included in Protista. C. Based on molecular data, Monera has been divided into the two distinct domains, Archaea and Bacteria. D. This kingdom now includes more organisms, so the name has been changed.
Which of the following produces no seeds?
a. cycads b. conifers c. horsetails d. ginkgos e. tomatoes