Why can't a plasma protein move through the dialysis tubing of the simulated filtration membrane?
A) It is too large.
B) Its shape is incompatible with receptor.
C) It is too small.
D) It has an opposite electrical charge.
Answer: A
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Which of the following is FALSE regarding single-unit smooth muscle cells?
A. They have many gap junctions between cells. B. They may have pacemaker activity. C. They have an individual neuron innervating each individual smooth-muscle cell. D. They exhibit tone. E. They may respond to stretch by contracting.
The less acidic (more basic) the environment is, the more efficient an enzyme will be
Indicate whether this statement is true or false.
Which of the following appears to exert the most direct influence over autonomic functions?
A) reticular formation B) hypothalamus C) midbrain D) medulla oblongata
Randolf was suffering from severe hepatitis. His skin appeared to be jaundiced. That color change was due to
A. increased globin in his circulatory system. B. increased heme in his circulatory system. C. decreased rate of globin breakdown. D. increased bilirubin in his circulatory system. E. All the choices are correct.