During carrier-mediated facilitated diffusion, the cell will increase its transport maximum if the concentration gradient is increased.
a. true
b. false
b. false
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In order to prevent spread of microorganisms from the microbiology laboratory, the room air should be
A. under positive pressure. B. under negative pressure. C. filtered. D. chilled. E. under negative pressure AND filtered.
What phenomena tends to increase genetic variation in a population?
A. Gene flow B. Population bottleneck C. Assortative mating D. Genetic drift E. Founder effect
Members of the class _______ are worm-like mollusks that lack a shell and have aragonite spicules on their skin.
a. Monoplacophora b. Aplacophora c. Scaphopoda d. Polyplacophora
Oxyhemoglobin contains _____
a. oxygen bound irreversibly to a heme group b. carbon dioxide c. carbonic anhydrase d. bound oxygen in the absence of a heme group e. oxygen bound reversibly to a heme group