Which formula defines total lung capacity?
a. IC+ERV+TV+IRV
b. RV+ERV+IRV+FRC
c. RV+ERV+TV+IRV
d. IC+VC+FRC
c. RV+ERV+TV+IRV
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A cell expends energy when moving substances against a gradient during ____
a. symport b. passive diffusion c. active transport d. facilitated diffusion e. antiport
If a population is in Hardy-Weinberg equilibrium, which of the following statements is correct?
A) Each allele will be present at a 50% frequency. B) Allele frequencies can vary from generation to generation, but the average frequency must remain constant. C) The size of the population must remain constant from generation to generation. D) Allele frequencies must remain the same from generation to generation. E) The rate of change of allele frequencies must be greater than 1 percent from generation to generation.
Which of the following situations does not result in a breakdown of the proton gradient?
a. Cyanide poisoning b. Oxygen deprivation c. Uncoupling proteins
The complement cascade and its by-products contribute to
A) attracting phagocytes to sites of infection. B) triggering inflammation. C) triggering release of interferons. D) triggering inflammation and release of interferons. E) both triggering inflammation and attracting phagocytes to sites of infection.