Which pathway shows the correct path of electron transfer from a molecule of NADH?
A. NADH hydrogenase ? ubiquinone ? cytochrome oxidase ? cytochrome b-c1 ? cytochrome c ? O2
B. NADH hydrogenase ? ubiquinone ? cytochrome c ? cytochrome b-c1? cytochrome oxidase ? O2
C. ubiquinone ? cytochrome b-c1? cytochrome c ? cytochrome oxidase ? NADH hydrogenase ? O2
D. NADH hydrogenase ? ubiquinone ? cytochrome b-c1? cytochrome c ? cytochrome oxidase ? O2
E. ubiquinone ? cytochrome b-c1? cytochrome c ? NADH hydrogenase ? cytochrome oxidase ? O2
D. NADH hydrogenase ? ubiquinone ? cytochrome b-c1? cytochrome c ? cytochrome oxidase ? O2
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The life cycle of flowering plants includes
a. formation of pollen. b. formation of eggs. c. fertilization. d. formation of seeds. e. all of these.
The most successful (largest numbers of species)
forms of life that have ever evolved are the a. vertebrates. b. insects. c. humans. d. protozoans. e. mollusks.
The simplest hypothesis for the original function of Hox genes is that they were expressed in the ________ [two words] in early animals
Fill in the blank(s) with correct word
If a person is bitten by a highly venomous snake and receives a dose of venom sufficient to kill several people, that person does not have the time to build up his immunity over the next week to neutralize the venom. However, hospitals carry "antivenin" made from injecting horses with small-to-larger dosages of snake venom, and then harvesting the antibodies from the horse plasma. This is an example of
A. passive immunity. B. receiving high levels of complement. C. receiving high levels of interferon. D. developing an inflammatory response to increase the IgG production. E. active immunity.