PSG 101 - Test 1|Questions With Correct
Answers|Verified
Define the term ventilation - ✔️The cyclic breathing of air in and out of the lungs.
Name three (3) alterations that may occur if ventilation is not sustained. - ✔️- Increased
carbon dioxide levels
- A pH level that decreases
- Decreased oxygen levels to the brain - which can also damage other vital organs
Where does carbon dioxide originate within the body? - ✔️From cellular metabolism
At what level does metabolism occur? - ✔️The cellular tissues - at the cellular level.
What nutrients does the living cell extract from the blood? - ✔️Carbs, Oxygen, Water,
Vitamins, Electrolytes.
By what pathway is carbon dioxide delivered from the cells out of the body? - ✔️The
cells extract CO2 into the bloodstream, which flows back into the lungs, then released
into the alveoli to be exhaled.
If ventilation is impeded, what occurs to the level of carbon dioxide within the body? -
✔️CO2 increases, decreasing pH and raising acidity.
What is the brain's natural response to increased carbon dioxide levels in terms of
ventilation? - ✔️To take as big of a breath as possible so we can get oxygen back into
the body ASAP.
What is the name of the equation that is used to describe how carbon dioxide reacts
with the water component of blood? - ✔️Hydrolysis.
How is the pH of the blood affected by increased carbon dioxide levels? - ✔️pH will
decrease causing blood acidosis. This happens during hypoventilation (slow/shallow
breathing).
How is the pH of the blood affected by decreased carbon dioxide levels? - ✔️pH will
increase causing blood alkalosis. This happens during hyperventilation (quick/deep
breathing).
According to the hydrolysis equation, what compound naturally buffers carbonic acid? -
✔️Bicarbonate.
If there were no buffering system in the body, what effect would this have on the blood's
pH system? - ✔️The blood's pH would be much higher without buffering system.
Answers|Verified
Define the term ventilation - ✔️The cyclic breathing of air in and out of the lungs.
Name three (3) alterations that may occur if ventilation is not sustained. - ✔️- Increased
carbon dioxide levels
- A pH level that decreases
- Decreased oxygen levels to the brain - which can also damage other vital organs
Where does carbon dioxide originate within the body? - ✔️From cellular metabolism
At what level does metabolism occur? - ✔️The cellular tissues - at the cellular level.
What nutrients does the living cell extract from the blood? - ✔️Carbs, Oxygen, Water,
Vitamins, Electrolytes.
By what pathway is carbon dioxide delivered from the cells out of the body? - ✔️The
cells extract CO2 into the bloodstream, which flows back into the lungs, then released
into the alveoli to be exhaled.
If ventilation is impeded, what occurs to the level of carbon dioxide within the body? -
✔️CO2 increases, decreasing pH and raising acidity.
What is the brain's natural response to increased carbon dioxide levels in terms of
ventilation? - ✔️To take as big of a breath as possible so we can get oxygen back into
the body ASAP.
What is the name of the equation that is used to describe how carbon dioxide reacts
with the water component of blood? - ✔️Hydrolysis.
How is the pH of the blood affected by increased carbon dioxide levels? - ✔️pH will
decrease causing blood acidosis. This happens during hypoventilation (slow/shallow
breathing).
How is the pH of the blood affected by decreased carbon dioxide levels? - ✔️pH will
increase causing blood alkalosis. This happens during hyperventilation (quick/deep
breathing).
According to the hydrolysis equation, what compound naturally buffers carbonic acid? -
✔️Bicarbonate.
If there were no buffering system in the body, what effect would this have on the blood's
pH system? - ✔️The blood's pH would be much higher without buffering system.
