Imagine that you are monitoring a test subject's blood. The pH of the blood is steadily decreasing, while the carbon dioxide levels are steadily increasing. What do you predict will occur?
A. As soon as oxygen levels decrease, the brain will stimulate an increase in the breathing rate.
B. Because of the increase in carbon dioxide levels, the brain will stimulate an increase in the breathing rate.
C. Because of the increase in carbon dioxide levels, the brain will decrease in the breathing rate.
B. Because of the increase in carbon dioxide levels, the brain will stimulate an increase in the breathing rate.
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The arsenic compound that proved highly effective in treating syphilis was called
A. penicillin. B. sulfa. C. erythromycin. D. Salvarsan.
In prokaryotes, photosynthesis occurs in the ____
a. ribosomes b. nucleoid c. chloroplasts
d. mitochondria e. plasma membrane
The structures of porin proteins in bacterial membranes and mitochondrial and chloroplast outer membranes is atypical for multipass integral proteins,
because the porin transmembrane region is composed of a ________ instead of ________ transmembrane segments as in bacteriorhodopsin. Fill in the blank with correct word.
Describe some of the various activities performed by membrane proteins in multicellular organisms. What will be an ideal response?