Which of the following statements about the plasma membrane is true?
a. The plasma membrane is symmetrical (on average) around the plane between the inner and outer halves.
b. The carbohydrate portion of glycoproteins is only found on the part of the protein facing the cytoplasm.
c. The carbohydrate portion of glycoproteins is only found on the part of the protein facing the extracellular fluid.
d. The carbohydrate portion of glycoproteins is found on both the extracellular facing and intracellular facing part of the protein.
e. There are no glycoproteins in the plasma membrane.
C
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A neuron is receiving a stimulus which gets stronger and stronger. The result is
A. resonance of action potentials increases. B. height of the action potentials increases. C. frequency of occurrence of action potentials increases. D. amplitude of the action potential increases. E. duration of the action potential increases.
Which of the following is not a function of the autonomic nervous system?
A) innervation of smooth muscle of the digestive tract B) innervation of cardiac muscle C) innervation of glands D) innervation of skeletal muscle
Which of the following statements regarding the lungs is correct?
A. The left lung contains two lobes, while the right lung contains three lobes. B. The left lung contains three lobes, while the right lung contains two lobes. C. Only the right lung has a hilum. D. The left lung has more bronchopulmonary segments than the right lung. E. The left lung is larger than the right lung.
Another name for a base is alkali.?
Indicate whether the statement is true or false