Pancreatic beta cells secrete insulin, which inhibits secretion of glucagons from neighboring alpha cells. This action is an example of which signaling types? Correct Answer: paracrine
In autocrine signaling:
A) a
...
Pancreatic beta cells secrete insulin, which inhibits secretion of glucagons from neighboring alpha cells. This action is an example of which signaling types? Correct Answer: paracrine
In autocrine signaling:
A) a cell releases a hormone.
B) a cell signals a neighboring cell.
C) a neuron signals another neuron.
D) a cell signals itself. Correct Answer: D) a cell signals itself.
The movement of small, electrically uncharged molecule from an area of high concentration to low concentration through a semipermeable barrier is an example of: Correct Answer: diffusion
Osmosis describes the movement of:
A) electrolytes.
B) glucose.
C) water.
D) blood. Correct Answer: C) water.
Osmosis specifically describes the movement of water from an area of high concentration of water to an area of low concentration of water.
The movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary is an example of which process of fluid movement? Correct Answer: hydrostatic pressure
________ are electrically charged molecules Correct Answer: electrolytes
Which of the following electrolytes is found in the highest concentrations in the intracellular fluid (ICF)?
A) Sodium
B) Calcium
C) Magnesium
D) Potassium Correct Answer: D) Potassium
Over 90% of total body potassium is located in the ICF.
A patient who has diarrhea receives a hypertonic saline solution intravenously to replace the sodium and chloride lost in the stool. Which effect will this fluid replacement have on cells? Correct Answer: cells will shrink
What causes the rapid change in the resting membrane potential that initiates the action potential? Correct Answer: Sodium gates open, and sodium rushes into the cell changing the membrane
[Show More]