How does osmosis differ from diffusion?
What will be an ideal response?
Diffusion is the movement of solute molecules from a region of high to lower concentration. Osmosis is the movement of water across a differentially permeable membrane from a region of high to lower concentration.
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People suffering mineral deficiencies sometimes compulsively eat non-nutritive substances, such as laundry starch, dirt, hair, and clay. This condition is called
A. obsessive-compulsive disorder. B. pernicious anemia. C. anorexia. D. pica.
Which of the following is a degenerative disease of the spinal cord?
a) amyotrophic lateral sclerosis b) shingles c) poliomyelitis d) areflexia e) all of these are degenerative diseases of the spinal cord
Choose the directional term to make the following sentence correct. The knee is ________ to the foot.
A) lateral B) medial C) superficial D) distal E) proximal
The figure illustrates changes in the membrane potential during an action potential. What does "C" represent?
A. Repolarization B. Depolarization C. Afterpotential D. Local potential E. Threshold