A simplified form of the Fick diffusion equation is J = KA (C1-C2) where J is the rate of diffusion, K is a constant, A is the area across which diffusion is occurring, and C1 and C2 are the concentrations of the substance on either side of the membrane. Given this, which of the following would INCREASE the rate of diffusion of a solute?
A. An increase in C1 while holding C2 constant
B. An equivalent decrease in both C1 and C2
C. An equivalent increase in both C1 and C2
D. A decrease in D
E. A decrease in A
A. An increase in C1 while holding C2 constant
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A cerebral embolism blocks an artery carrying blood to the ________
Fill in the blank(s) with correct word
In which of the following ways do plant hormones differ from hormones in animals?
A) Plant hormones most often travel in air as a gas. B) Animal hormones are only local regulators. C) Plant hormones are typically released into the soil. D) Animal hormones are primarily for mating and embryonic development.
Which part of a plant absorbs most of the water and minerals taken up from the soil?
A) root cap B) root hairs C) the thick parts of the roots near the base of the stem D) storage roots
Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life?
(a). Living things grow and develop. (b). Living things respond to stimuli. (c). Living things maintain themselves by homeostasis. (d). Living things have levels of hierarchical organization. (e). Living things are adapted to the environment.