CAMPBELL BIOLOGY:CONCEPTS... >CUSTOM<
18th Edition
ISBN: 9781323753149
Author: SIMON
Publisher: PEARSON C
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Chapter 22, Problem 3TYK
Summary Introduction
Introduction:
The process of breathing involves the flow of air inside and outside the lungs to carry out gas exchange between alveoli and blood. This process is mainly carried of oxygen from the alveoli to the blood and to other tissue cells and expulsion of carbon dioxide from the blood to the alveoli and finally to atmospheric air.
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If you hold your breath for a long time, body CO2 levels are likely to ____, and the pH of body fluids is likely to ____.a. increase; increaseb. decrease; increasec. increase; decreased. decrease; decrease
The carbonic acid equilibrium is shown below. Exhalation of CO2 by the lungs causes this equilibrium to shift to the ______, which causes the pH of the blood to _______.
H+ + HCO3- <=> H2CO3 <=> H2O + CO2
a) left; increase
b) left; decrease
c) right; decrease
d) right; increase
How do barbiturates influence the respiratory center?
a.) increase its activity
b.) Cause its activity to be involuntary
c.) decreases its activity
d.) Causes its activity to be voluntary
Chapter 22 Solutions
CAMPBELL BIOLOGY:CONCEPTS... >CUSTOM<
Ch. 22 - Complete the following concept map to review some...Ch. 22 - Label the parts of the human respiratory system.Ch. 22 - Prob. 3TYKCh. 22 - Countercurrent gas exchange in the gills of a fish...Ch. 22 - Prob. 5TYKCh. 22 - Prob. 6TYKCh. 22 - Prob. 7TYKCh. 22 - Prob. 8TYKCh. 22 - Prob. 9TYKCh. 22 - What are two advantages of breathing air, compared...
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- The respiratory system_______. a. provides body tissues with oxygen b. provides body tissues with oxygen and carbon dioxide c. establishes how many breaths are taken per minute d. provides the body with carbon dioxidearrow_forwardWhy is it that gram per gream, a mouse's respiratory rate is higher than that of an elephant's? a. The mouse can run faster than an elephant. b. The mouse has a larger brain than an elephant. c. The mouse has more surface area, so needs more energy to stay warm. d. The mouse has more surface area, so needs less energy to stay warm.arrow_forwardWhen a person hyperventilates, what happens to his or her blood pH? A person who is hyperventilating is often told to breathe into a paper bag. Why might this help to correct the pH imbalance?arrow_forward
- What are the most two important gases that must have a normal concentration inside the body? a.)Carbon dioxide and Hydrogen b.)Carbon dioxide and Oxygen c.)Hydroxide and Carbon d.)Hydrogen and Nitrogenarrow_forwardWhen you hold your breath, which of the following blood gaschanges first leads to the urge to breathe?(A) rising O2(B) falling O2(C) rising CO2(D) falling CO2arrow_forwardwhen carbon dioxide accumulates in extracellular fluids, the pH___. a: rises B: falls c: is unchanged d: sometimes rises, sometimes fallsarrow_forward
- Which of the following statements is true for Bohr effect: a. Bohr effect describes carbon monoxide poisoning. b. Bohr effect prevents oxygen binding to hemoglobin. c. Bohr effect allows effective oxygen discharge in tissues due to higher acidity (decreased pH) than in lungs. d. Bohr effect allows effective oxygen discharge in tissues due to lower acidity (increased pH) than in lungs.arrow_forwardNorepinephrine increases: A. respiration B. urine production C. saliva production D. blood pressurearrow_forwardThe majority of oxygen in the blood is transported by ________. a. dissolution in the blood b. being carried as bicarbonate ions c. binding to blood plasma d. binding to hemoglobinarrow_forward
- An increase in blood PH will ? a. Increase hemoglobin saturation B. Decrease hemoglobin saturation C. Decrease heart rate D. Decrease respiratory ratearrow_forwardWith 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 bondarrow_forwardPart I: Use the information below to answer the following questions: Subject A: 80 kg VO2max = 54 ml/kg/min RER (respiratory exchange ratio (VCO2/VO2) ) @ 70% VO2max = 0.93 Subject B: 70 kg VO2max = 38 ml/kg/min RER @ 70% VO2max = 0.94 a) Who is burning more total kcals at 70% VO2max? b) Who is burning more CHO kcals at 70% VO2max? c) Who is burning more absolute CHO kcals at VO2max? Part II: Using the information from question #2, calculate the grams of carbohydrates and the grams of lipids that each subject (A and B) is utilizing per minute at 70% VO2max. 3. You are running on the treadmill at the Rec Center and you overhear someone telling their friend that "you burn more absolute fat (kcal/hr) running at 5mph than you do at 7mph".arrow_forward
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