BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 47, Problem 6A
During exercise more oxygen is delivered to the muscles because
a. active muscles produce more CO2, lowering the pH of the blood.
b. active muscles produce heat.
c. Both a and b are correct.
d. Neither a nor b is correct.
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At an active muscle, red blood cells drop off and pick up .a. hemoglobin; bicarbonate c. hemoglobin; carbon dioxide gasb. oxygen gas; bicarbonate d. oxygen gas; carbon dioxide gas
In anaerobic respiration, lactic acid is released into the blood from skeletal muscle. When oxygen is available, most of the lactic acid is converted back to pyruvic acid and glucose in the
A. liver.
B. skeletal muscle.
C. Heart.
D. lung.
The maximal amount of oxygen that can be used by a person during physically exhausting exercise is called:
Group of answer choices
A. Maximal Oxygen Consumption
B. VO2Max
C. Aerobic Capacity
D. Cardiovascular endurance
E. Both A and B are correct
All of the above are correct
Chapter 47 Solutions
BIOLOGY
Ch. 47.1 - Prob. 1LOCh. 47.1 - Prob. 2LOCh. 47.1 - Compare evolutionary strategies for maximizing gas...Ch. 47.2 - Prob. 1LOCh. 47.2 - Prob. 2LOCh. 47.3 - Prob. 1LOCh. 47.3 - Prob. 2LOCh. 47.3 - Describe the breathing cycle of birds.Ch. 47.4 - Prob. 1LOCh. 47.4 - Prob. 2LO
Ch. 47.4 - Prob. 3LOCh. 47.5 - Describe the structure of hemoglobin.Ch. 47.5 - Predict hemoglobins oxygen affinity in various...Ch. 47.5 - Prob. 3LOCh. 47 - Prob. 1DACh. 47 - Prob. 2DACh. 47 - Prob. 3DACh. 47 - Prob. 4DACh. 47 - For a given PO2, how does oxyhemoglobin saturation...Ch. 47 - Prob. 1IQCh. 47 - Prob. 2IQCh. 47 - Prob. 1UCh. 47 - Increased efficiency of gas exchange in...Ch. 47 - Prob. 3UCh. 47 - Prob. 4UCh. 47 - Ficks Law of Diffusion states the rate of...Ch. 47 - Prob. 6UCh. 47 - Prob. 7UCh. 47 - Prob. 8UCh. 47 - When you take a deep breath, your stomach moves...Ch. 47 - Marine mammals are able to hold their breath for...Ch. 47 - Countercurrent flow systems do not occur in lungs...Ch. 47 - Respiratory organs of invertebrates and...Ch. 47 - Prob. 5ACh. 47 - During exercise more oxygen is delivered to the...Ch. 47 - Compare the operation and efficiency of fish gills...Ch. 47 - What happens when, during exercise, the oxygen...Ch. 47 - Explain how bacteria, archaea, protists, and many...
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- Which of the following will NOT facilitate the transfer of oxygen to tissues? a. decreased body temperature b. decreased pH of the blood c. increased carbon dioxide d. increased exercisearrow_forwardWould the respiration rate be different for a person who had just exercised instead of sitting in the lab? a. No, the respiration rate would be the same. b. Yes, the respiration rate would be slower because the exercise slows respiration and oxygen uptake. c. Yes, the respiration rate would be faster since the person needed more oxygen while exercising.arrow_forwardWhen considering the movement of air into the balloons (representing the lungs), which of the following would you have to do? a. pull down on the diaphragm mimicking the contraction of the diaphragm in inspiration b. push up the diaphragm mimicking the relaxation of the diaphragm in expiration c. push up on the diaphragm mimicking the contraction of the diaphragm in expirationarrow_forward
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- If the transpulmonary pressure equals zero,a. a pneumothorax has probably occurred.b. the lungs cannot inflate.c. elastic recoil causes the lungs to collapse.d. all of these apply.arrow_forwardWhich of the following can increase oxygen delivery to an actively metabolizing tissue? A. local reduction in pH in the active tissue B. relaxation of precapillary sphincters within the active tissue C. increased blood pressure as a consequence of tachycardia (that is, increased heart rate) D. increase in the number of open, perfused capillaries in the active tissue E. All of the above answer choices correctly answer the question.arrow_forwardFor a frog, the disadvantage of cutaneous respiration (through the skin) is: O a. It has to have an extremely thin skin. O b. It constantly loses water. O. Most of its blood supply is now in its skin collecting oxygen. O d. It constantly loses heat through the skin. Oe. It has an extensively folded skin to increase its surface area.arrow_forward
- Which of the following would increase the surface tension in the lungs? a. Increased intrapleural fluid production b. An increased compliance c. A decreased production of surfactant d. Increased elastic recoil 108.arrow_forwardWhich of the following statements about the oxygen-binding curves is FALSE? Select one: a. During normal activity (not exercising) the blood PO2 rarely falls below 40 mmHg. b. The PO2 and hemoglobin dissociation curve for myoglobin is to the left of fetal hemoglobin. c. The blood returning to the lungs is still 75% saturated with oxygen. d. A larger decrease in PO2 is needed for hemoglobin to drop from 100% to 75% O2 capacity than from 75% to 50% O2 capacity. e. During high metabolic activity the PO2 and hemoglobin dissociation curve would be expected to shift to the left of normal.arrow_forwardA person who lives close to sea level and usually goes jogging in the morning. When that person runs at a place like Denver with high elevation she notices she isn't able to run as fast up in Denver as she usually does at home. She knows it is colder and there is less oxygen at high elevation than there is at his home. Why she feel like she didn't have the energy to keep up with her usual pace. a. her body wasnt able to begin glycolysis due to lack of oxygen b. her body was producing less ATP due to lack of oxygen c. her body wasnt getting enough external heat inputarrow_forward
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