Answer:
See below for answer
Explanation:
<u>A. 200 mOsM NaCl</u>
This solution is hypotonic to the red blood cell (RBC) with penetrating solute. The RBCs will swell up and burst because the water will move into the cells.
<u>B. 400 mOsM urea</u>
This solution is hypertonic to the RBCs with non-penetrating solutes. Water will leave the cells via osmosis and the cells will shrink and appear shriveled.
<u>C. 100 mOsM urea plus 200 mOsM NaCl</u>
This time both penetrating and non-penetrating solute is present. The solution is isotonic to the RBCs and although there will be movement of water between the cells and the solution, there will be no overall change in the concentration of water for each and no change in appearance of the cells.
<u>D. 300 mOsM urea</u>
The RBCs will not lyse nor shrivel as again the solution is isotonic to the RBCs.
Answer:
D
Explanation:
there are around as many bacteria cells as there are human cells in the human body.
Breathing into and out of a paper bag for a long period of time will lead to respiratory acidosis.
<h3>
What is respiratory acidosis?</h3>
- When the lungs are unable to expel all of the carbon dioxide the body produces, a condition known as respiratory acidosis develops.
- Body fluids, particularly the blood, become too acidic as a result.
- The main causes of respiratory acidosis are inadequate ventilation and carbon dioxide buildup.
- The main issue is an increase in arterial carbon dioxide partial pressure (pCO2) and a decline in the arterial bicarbonate to arterial pCO2 ratio, which causes a drop in blood pH.
- When there is acute respiratory acidosis, the body initially tries to make up for it.
- If the acidosis lasts more than 12 hours, a reaction known as metabolic compensation2 takes place.
- By increasing the release of hydrogen ions through ammonium, the kidneys will lower the blood's acidity.
- Too much carbon dioxide in the body can result in general symptoms including headache, exhaustion, and twitching muscles.
- Frequently, it goes away fast on its own.
- But in cases of severe hypercapnia, the body is unable to return to a stable CO2 level, and the symptoms are more severe.
Learn more about respiratory acidosis here:
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The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
<span>All the options (heat, pressure, deposition and chemical environment) are correct.<span>
Metamorphic rocks are formed when pre-existing rocks are subjected to heat, pressure and hot mineral rich fluids which cause physical, chemical and mineralogical changes to the rock. Metamorphic rocks are grouped by chemical, texture and mineralogy. The common metamorphic rocks include schist, marble, and gneiss.
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