KNR 280 Study Guide - Midterm Guide: Hemoglobin, Cardiac Output, Afterload
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Hydrogen peroxide (H2O2) decomposes in the presence of a catalyst to form water and oxygen. The catalyst was added to 5.80 mL of a hydrogen peroxide solution at 20.0 âC, and 50.0 mL of gas was collected over water at a total pressure of 764.0 mmHg. Look up the vapor pressure of water under these conditions in the table.
| Part A Write and balance the chemical reaction. (Note: catalysts do not appear in balanced chemical equations) Express your answer as a chemical equation. Identify all of the phases in your answer.
Part B What is the partial pressure of oxygen collected over the water? Express your answer to one decimal place and include the appropriate units. |
1. A blood vessel thatbecomes damaged and increases in diameter will fail because thetension in the walls _____ when compared to the previoulsyundamaged vessel.
A. decreases with anincreased diameter
B.decreases withpressure
C. increases with decreasedvessel thickness
D. decreases with increasedvessel thickness
E. increases with anincreased diameter
2. This nerve controls quiet respiration.
A. intercostalnerve
B. phrenic nerve
C. Diaphragmaticnerve
D.vagus nerve
E. pulmonaryplexus
3. Which of the following has no effect on oxyhemoglobindissociation?
A. lactic acid
B. fever
C. high tissue carbon dioxide
D. low ph
E. blood pressure
4. Surfactant of the lungs is created by
A. Oat cells.
B. lungmacrophages.
C. Type Ipneumocytes.
D. Type IIpneumocytes.
E. Goblet Cells
5. What is the medical termused to describe a lung that is no longer exchanging gases due tothe physical collapse of the alveoli (collpased lung)?
|
6. If an individual removesthe surfactant from the lungs by inhaling and then exhaling asubstantial quantity of fresh water, the ____.
A. alveoli would increase indiameter | ||
B. alveoli would decrease indiameter | ||
C. bronchioles would increasein diameter | ||
D. bronchioles would decreasein diameter | ||
E. vital capacity wouldincrease | ||
F. anatomical dead air spacewould increase | ||
7. The chemoreceptors thatbest monitor the affects of respiration are found in
A. the brainstem. | ||
B. the carotidbaroreceptor. | ||
C. the aoritcarch. | ||
D. the kidney. | ||
E. the cerbrospinalfluid. | ||
8. Henry's Law deals with
A. the total pressure of agas being made of the partial pressures of theindividual constituents | ||
B. the volume of a gas isrelated to the temperature and pressure | ||
C. the pressure of a gas isdirectly related to its velocity | ||
D. oxygen binding hemoglobinis temperature dependent | ||
E. oxygen binding hemoglobinis pH dependent |
9. The amount of air in excess of tidal volume that can beinhaled with maximum effort is called
A. vital capacity. | ||
B. inspiratory reservevolume. | ||
C. expiratory reservevolume. | ||
D. residualvolume. | ||
E. inspiratorycapacity. |
10. Large amounts of air in the pleural spaces of a lung willcause the lung to collapse because ___________.
A. the pressure of thetrapped air prevents inflation of the lung | ||
B. the trapped air will goout a hole called the pnuemothorax | ||
C. the lung is not longerstuck to the parietal pleural lining | ||
D. the lung has lostsurfactant | ||
E. the air will not beabsorbed outside of an alveoli |
11. Most carbon dioxideproduced by cellular metabolism is
A. carried by the red bloodcells bound to hemoglobin | ||
B. carried in the bloodplasma as bicarbonate | ||
C. carried in the red bloodcells as bicarbonate | ||
D. carried in the plamsa asdissolved gas | ||
E. carried in the red bloodcell as dissolved gas | ||
12. If I have a blood vessel that doubles in diameter, at the samepressure I would expect about ____ as much blood to go throughit.
A. 2 times | ||
B. 4 times | ||
C. 8 times | ||
D. 16 times | ||
E. 32 times | ||
F. 64 times |