BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 47, Problem 2A
Marine mammals are able to hold their breath for extended periods underwater because
a. unlike humans, they don’t hypoventilate.
b. partial pressure of carbon dioxide does not increase underwater.
c. myoglobin in muscle tissue provides an oxygen reserve.
d. the brains of marine mammals do not have receptors that respond to impulses initiated in the aortic and carotid bodies.
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Students have asked these similar questions
Which of the following is NOT a feature of a gas-exchange organ in animals?
A. low surface area for gas exchange
B. moist
C. thin, delicate structure
D. extensive blood flow
At which point in the mammalian circulatory system does the partial pressure of oxygen in the blood experience its greatest increase?
A.
in the arteries of the heart
B.
in the pulmonary veins
C.
in the pulmonary capillaries
D.
in the pulmonary arteries
E.
in the aorta
Which of the following is a true statement?
A. The concentration of oxygen in water is greater than that in air.
B. In animals with gills, ventilation helps to reduce the thickness of the
boundary layer.
C. Countercurrent flow at the gas-exchange surface results in the
diffusion gradient across surface.
D. Mammalian lungs requires the diaphragm because the lungs are
relatively stiff and filled with parabronchi.
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements about vertebrate circulatory systems is not true? A. In mammals, the blood pressure in the aorta is higher than the pressure in the pulmonary artery. B. In fishes, oxygenated blood from the gills returns directly to the heart through the left atrium. C. In birds, deoxygenated blood leaves the heart through the pulmonary artery. D. In reptiles, the blood in the pulmonary artery has a lower oxygen content than the blood in the aorta. E. In amphibians, deoxygenated blood enters the heart through the right atrium.arrow_forwardWhich of the following is true of the circulatory system of a grasshopper? A. One or more muscular chamber hearts drive blood through the closed circulatory system of the grasshopper. B. The grasshopper has an open circulatory system with a heart that is a peristaltic vessel. C. Because the grasshopper has an open circulatory system, the maximum hemolymph pressures that can be achieved are relatively low, which limits the maximum metabolic rate that can be achieved. D. The grasshopper does not have a specialized circulatory system - instead, its circulatory system consists of the fluid in the body cavity which is circulated by means of the body movements of the animal. E. Both B and C are true of the circulatory system of the grasshopper.arrow_forwardRespiratory organs of invertebrates and vertebrates are similar in that a. they use negative pressure breathing. b. they take advantage of countercurrent flow systems. c. they increase the surface area available for diffusion. d. the air flows through the organ in one direction.arrow_forward
- What is true about Myoglobin? A. is the oxygen-carrying molecule in most invertebrates who do not have respiratory systems. B. primary purpose is to bind to carbon monoxide to prevent us from being poisoned. C. uses copper rather than iron. D. is similar to hemoglobin but has one heme and found mostly in muscle tissue. Which animal has two atria and one ventricle with no septum? A. fish B. frog C. rat D. lizardarrow_forwardAccording to the Fick equation, the fish gill is an effective gas exchange surface because... A. It has a high blood-to-water diffusion distance B. The total surface area of the lamellae is very large C. The scaphognathite maintains a constant flow of water across the gill D. The gill tissue is supported by the surrounding water E. All of the abovearrow_forwardWhich of the following is NOT a way that carbon dioxide exits the body? * A. carbon dioxide travels down the concentration gradient and is able to diffuse from the tissues directly out of the body through its pores. B. carbon dioxide dissolves directly into the blood plasma to be carried to the lungs where it will be exhaled. C. Carbon dioxide binds with hemoglobin as red blood cell pass through tissues and is released as the blood cells reached the lungs. D. carbon dioxide converts into bicarbonate ions in the blood as it diffuses from the tissues and converts back to carbon dioxide as it reaches the lungs to be exhaled PLS ANSWWER ASP THANK YOUU SO MUCHarrow_forward
- The alveoli of mammalian lungs do not contain 20.9% O2 (that is, the percentage of O2 in atmospheric dry air) because A. there is dead space in the trachea and bronchial tree and the air in the lungs is humidified. B. mammals do not normally ventilate the lungs at a high enough rate. C. the trachea and bronchi are too small in volume to contain this amount of O2. D. mammal lungs have too many alveoli to ventilate. E. some O2 has been exchanged with the blood before reaching the alveoli.arrow_forwardThe act of breathing raises the blood oxygen level, lowers the blood carbon dioxide concentration, and raises the blood pH. According to the principles of negative feedback, sensors that regulate breathing should respond to a. a rise in blood oxygen. b. a rise in blood pH. c. a rise in blood carbon dioxide concentration. d. all of these.arrow_forwardCutaneous respirationa. is important for many reptiles.b. causes the lungs of mammals to expand.c. helps protect animals from air pollution.d. cannot occur through dry skin.arrow_forward
- Interactions between the cardiovascular and respiratory system provide oxygen to the body.a. Describe the path of blood through the heart, including arteries and veins. Start at the blood entering the heart from the body. Indicate when blood is oxygenated and deoxygenated.b. Oxygen is transported by hemoglobin. Describe how pH affects the deposition of oxygen in tissues c. What are two sources of oxygen stores in the body to allow for rapid use when undergoing physical exertion? d. Which chamber of the heart is the most muscular, and why?arrow_forwardVery young infants who suffer from sleep apnea may be more at risk for SIDS, or sudden infant death syndrome. Why might these infants have difficulty breathing? a. Many of these infants are obese and therefore their airways are obstructed. b. The brain stem is not yet fully mature. c. The tissue lining in the nasal passageway may be obstructing their airflow. d. No medical explanation has been determined.arrow_forwardIn which one of the following animals is respiration done by skin? A. Flying fishB. Sea horseC. FrogD. Chameleonarrow_forward
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