Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Textbook Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents 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
All vertebrates breathe with either gills or lungs. Which is a property of gills only and not lungs?
Which 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 MUCH
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...
Knowledge Booster
Learn more about
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
- 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
- Very 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_forwardWhich of the following situations occurs if a person's blood becomes more alkaline? A. Hemoglobin molecules retain less oxygen per heme group under alkaline conditions than they do at neutral pH or under acidic conditions. B. Hemoglobin molecules give up oxygen more readily under alkaline conditions than they do under neutral pH or under acidic conditions. C. Hemoglobin molecules change shape and begin to lose oxygen molecules. D. Hemoglobin molecules retain oxygen more readily under alkaline conditions than they do at neutral pH or under acidic conditions. E. There is no change in hemoglobin's oxygen-binding affinity under alkaline conditions when compared to blood at neutral pH or under acidic conditions.arrow_forwardMyocardial infarction, or a heart attack, results if there is a lack of oxygen and nutrients brought to the heart tissue. A heart attack would result due to a blockage by arteriosclerosis of the а. coronary veins b. coronary arteries С. c. pulmonary veins d. pulmonary arteriesarrow_forward
- The primary function of the pleural membranes is ____ A. to decrease friction and allow the lungs to move within the thoracic cavity is B. to decrease surface tension by producing surfactant C. to prevent the lungs from putting pressure on the heart and surrounding vessels D. to prevent respiratory infectionsarrow_forwardNeural output from the brain stem regulated breathing including respiratory rate and depth. In a patient with damage to the medulla oblongata and subsequently to the phrenic nerve, which of the following would be true? a. the diaphragm may not be able to contract, resulting in respiratory arrest b. the respiratory rate and depth would increase as signals from the pons would increase c. the diaphragm will begin to contract on its own via autorhythmic cellsarrow_forwardDuring speech the circumference of the chest wall increases and decreases as it moves air in and out of the lungs. Which statement best describes the air pressure and direction of air flow as the chest wall circumference increases? Group of answer choices A. Air pressure inside the lungs decreases, so atmospheric air is pushed into the lungs B. Air pressure inside the lungs increases, so atmospheric air is pushed into the lungs C. Air pressure inside the lungs decreases, so atmospheric air is pushed out of the lungs D. Air pressure inside the lungs increases, so atmospheric air is pushed inside the lungsarrow_forward
- What do nerve fibers do in the respiratory system? Group of answer choices a. Constrict or dilate bronchial smooth muscle b. Increase or decrease mucous secretion c. Increase diffusion of oxygen in the alveoli d. A and B e. All of the abovearrow_forwardIf the blood lacked red blood cells but the lungs were functioning normally, A. The arterial PO2 would be normal. B. The oxygen content of arterial blood would be normal. C. Both A and B would apply. D. Neither A nor B would apply Which of the following would be most affected by a decrease in the affinity of hemoglobin for oxygen? A. Arterial PO2 B. Arterial percent oxyhemoglobin saturation C. Venous oxyhemoglobin saturation D. Arterial PCO2arrow_forwardWhich of the following organisms do not possess a pulmonary circuit?a. amphibiansb. reptilesc. mammalsd. fisharrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Respiratory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=v_j-LD2YEqg;License: Standard youtube license