Which of the following would increase the rate of diffusion across a cell membrane?
A) a decrease in the surface area of the membrane
B) a decrease in membrane thickness
C) a decrease in the concentration gradient
D) a decrease in membrane permeability
B) a decrease in membrane thickness
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________ is an eruption of extremely painful vesicles that occur in a belt-like pattern of patches.
A. Scabies B. Pediculosis C. Herpes zoster D. Acne vulgaris
Elliot thought that his peptic ulcers were caused by his nagging parents, and was surprised when the doctor handed him a prescription for medication to treat
A. a bacterial infection. B. a too high pH. C. excess bile. D. a viral infection.
In addition to transporting oxygen hemoglobin transports
a. some carbon dioxide. b. nitric oxide. c. buffered hydrogen ions. d. both (a) and (b) above. e. all these answers.
If a muscle crosses the ankle joint posteriorly with a vertical direction to its fibers, what action of the foot does it have?
a. Dorsiflexion b. Plantarflexion c. Inversion d. Eversion