The rate of diffusion of molecules would be fastest in a cell with an
A. internal concentration of 40 percent and an external concentration of 35 percent in warm temperatures.
B. internal concentration of 50 percent and an external concentration of 12 percent in cold temperatures.
C. internal concentration of 45 percent and an external concentration of 50 percent in cold temperatures.
D. internal concentration of 50 percent and an external concentration of 12 percent in warm temperatures.
Answer: D
You might also like to view...
During an action potential, the membrane potential can reach as high as ____
a. -10 mV b. 0 mV c. +10 mV d. +20 mV e. +30 mV
Which of the following statements about the liver is false? a. The liver converts urea to ammonia, a less toxic compound
b. Fat-soluble compounds such as vitamins D and A are stored in the liver. c. The liver converts excess carbohydrates and proteins to fat. d. The liver detoxifies alcohol.
Steroid hormones are synthesized from _____
a. amines c. proteins b. peptides d. cholesterol
A (n) _____ is an autotroph
a. primary producer c. detritivore b. herbivore d. top carnivore