A short while after a person has died, a "gasp" of air may occur as the lungs collapse. This flow would represent the
Select one:
a. tidal volume.
b. expiratory reserve volume.
c. total lung volume.
d. vital capacity.
e. residual volume.
e. residual volume.
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Which of the following is(are) sustainable development goal(s) being addressed by the United Nations?
A. maintain biodiversity B. reduce population growth C. eradicate poverty D. soil conservation E. All of the above are correct.
The microtubule behavior in which tubulin adds at the plus end, fluxes through a constant-length microtubule, and comes off the minus end is called
a. an equilibrium state. b. dynamic instability. c. treadmilling. d. recycling. e. directional transport.
Consider the regulation of galactose metabolism through GAL4. Which of the following would result from a mutation that allowed GAL3 to bind to GAL80 in the absence of galactose?
A. GAL4 would no longer be able to bind to the DNA; thus, transcription of the genes involved in galactose metabolism would occur. B. Transcription of the genes involved in galactose metabolism would occur both in the presence and in the absence of galactose. C. GAL80 would no longer be able to stimulate transcription of the genes involved in galactose metabolism. D. There would be no change in the regulation of galactose metabolism because GAL3 normally binds to GAL80 to cause a conformation change in GAL80. E. GAL80 would be able to bind to GAL4, and transcription of the genes involved in galactose metabolism would be repressed.
The fibrinolytic proteins of the blood are formed mainly by the
a) kidneys b) lungs c) bones d) liver e) pancreas