When a nonpolar molecule is placed in water, it will
A. neither dissolve nor carry electrical current.?
B. dissolve and carry electrical current.?
C. dissociate and carry electrical current.?
D. carry electrical current but not dissolve or dissociate.
A
You might also like to view...
Ventilation refers to the
A. gas exchange between the blood and the tissues. B. respiration at the cellular level. C. movement of air into and out of the lungs. D. transportation of oxygen and carbon dioxide in the blood. E. gas exchange between the air in the lungs and the blood.
Movement of leukocytes between the endothelial blood vessel cells into the body tissues is called ________.
Fill in the blank(s) with the appropriate word(s).
The equilibrium potential of K+ ions in nerve cells is about -90 mV. The membrane potential of typical nerve cells at rest is -70 mV. Therefore
A. Increasing the permeability of a resting neuronal membrane to K+ will make the membrane potential more negative inside with respect to outside. B. In resting neurons, there is a net diffusion of K+ into the cell. C. changing the resting membrane potential of a neuron to -80 mV would increase K+ diffusion rate out of the cell. D. potassium is the only permanent ion at rest. E. there must be another permanent ion with an equilibrium potential more negative than -90 mV.
Deep pressure and vibration are detected by which of the following?
A. Tactile corpuscles B. Krause end bulbs C. Free nerve endings D. Lamellar corpuscles E. Ruffini corpuscles