Active transport involves _____
A) diffusion of solute through the lipid bilayer of a membrane
B) pumping of solutes across the membrane
C) production of adenosine triphosphate (ATP)
D) transport of solute down a concentration gradient
Answer: B
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Although the inner leaflet of the gram-negative outer membrane is composed mainly of phospholipids, the outer leaflet of the outer membrane contains
A) pseudopeptidoglycans. B) lipoteichoic acids. C) poly-?-hydroxybutyric acids (PHB). D) lipopolysaccharides (LPS).
Which term is not used to describe bacterial cell shape?
A. Bacillus B. Spirochete C. Vibrio D. Tetrad E. Coccus
Histoplasmosis ________
a. is a lung disease caused by Histoplasma capsulatum b. causes apple scab c. is a brown rot of peaches, destroying them before they reach market d. taints rye, causing vomiting, diarrhea, and hallucinations in people who eat it
DNA contains all of the following nitrogencontaining
bases EXCEPT a. adenine. b. uracil. c. guanine. d. adenine. e. thymine.