A molecule that is part polar and part nonpolar is called ________.
A. a ketone body
B. an enantiomer
C. amphipathic
D. unsaturated
Answer: C
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Describe the forces involved bulk flow across a capillary bed
What will be an ideal response?
The sacroiliac joint is stabilized by ligaments attaching to a roughened area superior to the auricular surface of the ilium called the
A) iliac fossa. B) anterior superior iliac spine. C) greater sciatic notch. D) iliac tuberosity. E) arcuate line.
An important difference between single -unit and multiunit smooth muscle is the
A) ability of single-unit fibers to change into multiunit fibers when advantageous. B) closely controlled individual fibers in single -unit smooth muscle to allow fine control and graded contractions by selective activation. C) longer actin and myosin filaments in multiunit smooth muscle, which allow coordination of contraction. D) numerous gap junctions in single-unit smooth muscle, which allow many cells to work together as a sheet.
Filtrate in the proximal convoluted tubule normally contains
a) nutrients. b) hydrogen ions. c) water. d) urea. e) All of the answers are correct.