Which of the following characterizes blood flow through capillaries?
A) enormous total cross-sectional area, but narrow so that blood cells pass slowly
B) enormous total cross-sectional area, but wide so that blood cells pass quickly
C) small total cross-sectional area, so blood flows slowly
D) small total cross-sectional area, so blood flows rapidly
A
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The specific amino acid sequence of a protein is its ____.
A. primary structure B. secondary structure C. tertiary structure D. quaternary structure
The technique that allows one to record ion currents passing through individual channels is known as
A) voltage-gating. B) ligand-gating. C) patch-clamping. D) ion sensors. E) ionophores.
During the early stages of starvation, the amount of fat in the body will steadily decrease, but the amount of protein will drop only slightly. This is known as
A. protein-sparing. B. wasting disease. C. lip-sparing. D. bulimia.
Infectious protein particles are called
A. phages. B. oncogenic viruses. C. prions. D. viroids. E. spikes.