In the arterial blood of a healthy person, the quantity of CO2 dissolved in solution is a. less than 0.7% of the total amount of CO2 carried b. about 7% of the total amount of CO2 carried c. about 70% of the total amount of CO2 carried d. about equal to the amount carried as carbaminohaemoblobin e. about equal to the amount carried as bicarbonate

In the arterial blood of a healthy person, the quantity of CO2 dissolved in solution is a. less than 0.7% of the total amount of CO2 carried b. about 7% of the total amount of CO2 carried c. about 70% of the total amount of CO2 carried d. about equal to the amount carried as carbaminohaemoblobin e. about equal to the amount carried as bicarbonate

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter35: Respiration

Section: Chapter Questions

Problem 9SA

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Carbon dioxide when traveling in the form of bicarbonate ion does so ______ a. bonded to water b. associated to hemoglobin c. within the plasma of blood d. within the red blood cell
The chloride shift occurs..... a. To help keep the bicarbonate equilibrium reaction moving from left to right at the tissues. b. to prevent an increase in blood pH c. in response to bicarbonate movement into the plasma d. to maintain charge balance.
Most carbon dioxide is transported in the blood a. dissolved within the plasma as carbon dioxide. b. in association with hemoglobin. c. as bicarbonate ion. d. in combination with oxygen.
The enzyme carbonic anhydrase a. causes the blood to be more basic in the tissues. b. forms carbonic acid in the blood. c. actively transports carbon dioxide out of capillaries. d. is active only at high altitudes. e. All of these are correct
Most oxygen transported in human blood______ . a. is bound to hemoglobin b. combines with carbon to form carbon dioxide c. is in the form of bicarbonate d. is dissolved in the plasma
Your patient is resting and has a pulse-ox reading of 98% in bed, resting comfortably. Which of the following is correct? a. it is an abnormally low reading (saturation of hemoglobin with oxygen) b. it is an abnormally high reading (saturation of hemoglobin with oxygen) c. it is a normal reading (saturation with oxygen) d. the patient's pH is probably very acidic at this point
Carbon monoxide (CO) is toxic to humans because it: A) is rapidly converted to toxic CO2. B) binds to the globin portion of hemoglobin and prevents the binding of O2. C) binds to myoglobin and causes it to denature. D) binds to the heme portion of hemoglobin and causes heme to unbind from hemoglobin. E) binds to the Fe in hemoglobin and prevents the binding of O2.
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The first thing that happens when O2 binds to Hemoglobin (Hb) is that: a Hb shifts to the Relaxed state. b Tension on Heme causes a hydrogen bond to break. c The pH of the bloodstream increases. d BPG binding increases.
With the Bohr effect, more oxygen is released because a(n)____. a) increase in pH(alkalosis) strengthens the hemoglobin-oxygen bond b) increase in pH(alkalosis) weakens the hemoglobin-oxygen bond c) decrease in pH (acidosis) weakens the hemoglobin-oxygen bond d) decrease in pH (acidosis) strengthens the hemoglobin-oxygen bond
If partial pressure of oxygen were about 35 MMHG and the capillaries then a. the cells would not need extra oxygen b. CO2 pressure would be very low in the cells c. it would not be able to diffuse into the tissue cells d. it would easily travel and capillaries and if used to the needy cells
In a study of O2 uptake by muscle at high altitude, a physiologist prepares an atmosphere consisting of 79 mole % N2, 17 mole % 16O2, and 4.0 mole % 18O2. (The isotope 18O will be measured to determine O2 uptake.) The total pressure is 0.75 atm to simulate high altitude. Calculate the mole fraction and partial pressure of 18O2 in the mixture.