The equilibrium potential of potassium is
A) -90mV.
B) -65mV.
C) -70mV.
D) +30mV.
E) +66mV.
A
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Glucose is a
A. polar molecule, and therefore it dissolves readily in plasma. B. polar molecule, and therefore it requires a transporter in the blood. C. nonpolar molecule, and therefore it dissolves readily in plasma. D. nonpolar molecule, and therefore it requires a transporter in the blood.
true or false: the hamstrings are the major extensors of the knee.
What will be an ideal response?
In spermatozoa, a structure called the acrosome:
a. Contains dynein arms that control sperm motility b. Contains proteolytic enzymes that function during fertilization of an ovum by sperm c. Is a focal accumulation of rough endoplasmic reticulum d. Localizes around mitochondria in the midpiece of the flagellum e. Regulates the condensation of nuclear DNA
The esophagus differs from the rest of the alimentary tract in that it possesses only a loose layer of tissue called the ________.
A. adventitia B. muscularis C. mucosa D. serosa