Test # 2
Respiratory System




For each of the 4 stages of respiration ask...

 --what specifically is happening

 --where is it happening

 --what is making it happen

 --is there a “law” that explains this stage.

 *If you hold your breath (hypoventilate) how would this affect your blood’s CO2 level, its O2 level, its pH?

 *Why does oxygen leave hemoglobin and diffuse into a cell? Name 5 factors that enhance this.

 *Why is it that “needy” cells are more likely to get oxygen?

 *How does pneumonia affect blood oxygen levels, why? Does it affect CO2?

 *Which anatomical portion of the bronchial tree is affected by asthma?

 *Why don’t the spasmotic contractions of asthma affect the alveolar ducts or the
bronchi?

 *Why does CO2 leave a cell and leave the body?  Why don’t we need to transport the CO2 in red blood cells?

 *Oxygen which is leaving an alveolus passes through 2 membranes...name the second one.

 1. Which respiratory stage causes the partial pressure of oxygen to be lower inside our bodies?  (a) gas transport
(b) external respiration (c) cellular respiration (d) internal respiration (e) pulmonary ventilation

 2. Which respiratory stage involves the diffusion of CO2 from the blood plasma?
  (a) gas transport (b) external respiration (c) cellular respiration (d) internal respiration (e) pulmonary ventilation

 3. Where in our bodies is the partial pressure of oxygen at its highest?  (a) in blood vessels (b) inside cells (c) in alveoli (d) in a scuba tank (e) it’s equal throughout

 4. If a person hyperventilates, how would this affect the CO2 levels in their blood? (a) increase it (b) decrease it (c) no effect

 5. How would it effect their blood oxygen levels?  (a) increase it (b) decrease it (c) no effect

 6. In what structure are the vocal folds located?  (a) trachea (b) pharynx (c) buccal cavity (d) esophagus (e) laryngopharynx (f) none of the above

 7. How does Henry’s law relate to respiration?
  (a) It explains how pulmonary ventilation can occur
  (b) It explains how gases can diffuse in opposite directions
  (c) It doesn’t because the body is at a constant temperature
  (d) It explains how the water in your blood is a barrier to diffusion of some gases
  (e) It explains how muscles must contract during inspiration

 8. Which respiratory stage is explained by Boyles’ law?
  (a) gas transport (b) external respiration (c) cellular respiration (d) internal respiration (e) pulmonary ventilation

 9. Why does nitrogen dissolve in a scuba diver’s blood but not in a land tortoise’s?
  (a) because the water makes it soluble (b) because tortoises have hard shells (c) because the partial pressure of oxygen on land affects the nitrogen’s solubility (d) because the increased pressure under water affects nitrogen’s solubility (e) because of Dalton’s law

 10. If you hold your breath your blood becomes (a) more acidic (b) more alkaline (c) sluggish (d) filled with poisonous carbon monoxide (e) it doesn’t affect your blood -- only the heart does