Which model currently describes the structure of the plasma membrane?
A. endosymbiont model
B. induced-fit model
C. plasmagel-plasmasol model
D. lock and key model
E. fluid-mosaic model
Answer: E
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The aerated upper layer of soil is likely to have ________ concentrations of H2 for aerobic H2-oxidizing Bacteria, so these bacteria likely ________
A) high / thrive in such conditions by not competing with chemoorganotrophs B) high / generate important reducing equivalents as byproducts for other microorganisms in the soil C) low / do not occur in such habitats D) low / will need a chemoorganotrophic way to grow as well
Which of the following is NOT TRUE about heat
stroke? a. 175 Americans die annually from it. b. Peer pressure may increase risk. c. Immediate medical treatment will reverse it, d. Body temperature can reach 108 degrees. e. It is more likely to occur on a humid day.
Which of the following is not a characteristic shared by all chordates at some point in their life cycle?
a. possession of a coelom b. three primary cell layers c. dorsal tubular nerve cord d. pharyngeal gill slits e. vertebrae
Blastomyces dermatitidis
A. usually enters through the gastrointestinal tract B. is transmitted by skin contact with fomites. C. causes Gilchrist disease and Chicago disease. D. is a dermatophyte. E. All of the choices are correct.