EBK HUMAN BIOLOGY
11th Edition
ISBN: 8220100545931
Author: MCMILLAN
Publisher: Cengage Learning US
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Textbook Question
Chapter 10, Problem 8SQ
Due to its partial pressure gradient, carbon dioxide diffuses from cells into tissue fluid and into the ________; in the lungs, carbon dioxide diffuses into the ________.
- a. alveoli; bronchioles
- b. bloodstream; bronchioles
- c. alveoli; bloodstream
- d. bloodstream; alveoli
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Which of the following is the primary method by which carbon dioxide is transported to the lungs?
a. Dissolved in plasma
b. Bound to hemoglobin
c. As carbon monoxide
d. As bicarbonate
Which of the following best describes the gas exchange that occurs in the lungs?
A. carbon dioxide diffuses into the capillaries from the alveoli
B. oxygen diffuses from the capillaries into the alveoli
C. carbon dioxide diffuses from the capillaries into the alveoli
D. oxygen diffuse into the alveoli from the capillaries
Which of the following is considered the structural and basic functional unit of the lung that is responsible for the exchange of oxygen and carbon dioxide during respiration?
a. Bronchioles
b. Lungs
c. Bronchus
d. Alveoli
Chapter 10 Solutions
EBK HUMAN BIOLOGY
Ch. 10 - In the diagram below, label the parts of the...Ch. 10 - What is the difference between respiration and...Ch. 10 - Explain what a partial pressure gradient is and...Ch. 10 - What is oxyhemoglobin? Where does it form?Ch. 10 - What drives oxygen from the air spaces in alveoli,...Ch. 10 - How does hemoglobin help maintain the oxygen...Ch. 10 - What reactions enhance the transport of carbon...Ch. 10 - How do nerve impulses from the brain regulate...Ch. 10 - Why does your breathing rate increase when you...Ch. 10 - A partial pressure gradient of oxygen exists...
Ch. 10 - The ________ is an airway that connects the nose...Ch. 10 - Oxygen in air must diffuse across______ to enter...Ch. 10 - Prob. 4SQCh. 10 - Gas exchange occurs at the _______. a. two bronchi...Ch. 10 - Breathing _______. a. ventilates the lungs b....Ch. 10 - After oxygen diffuses into lung capillaries, it...Ch. 10 - Due to its partial pressure gradient, carbon...Ch. 10 - Prob. 9SQCh. 10 - Prob. 10SQCh. 10 - Cases of accidental carbon monoxide poisoning...Ch. 10 - Prob. 2CTCh. 10 - When you sneeze, abdominal muscles abruptly...Ch. 10 - Underwater, we humans cant compete with whales and...Ch. 10 - Prob. 5CT
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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_forwardFigure 16.9 Which of the following statements about the human respiratory system is false? a. When we breathe in, air travels from the pharynx to the trachea. b. The bronchioles branch into bronchi. c. Alveolar ducts connect to alveolar sacs. d. Gas exchange between the lungs and blood takes place in the alveolus.arrow_forwardWhich is the order of airflow during inhalation? a. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli b. nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli c. nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli d. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoliarrow_forward
- Ventilation of alveoli above the needs of metabolism tends to A. Increase the hydrogen ion concentration in the blood B. Increase the carbon dioxide concentration in the blood C. Leads to respiratory acidosis D. Decrease the carbon dioxide concentration in the blood E. Decrease the pH of the bloodarrow_forwardWhich of the following is found in the respiratory zone of the lung? A. Goblet cells B. Main bronchi C. Mucous cells D. Terminal bronchioles E. Type I epithelial cellsarrow_forward_____________ is secreted by type II alveolar cells in the mammalianlungs and prevents the collapse of alveoli that would otherwise occurdue to surface tension at the interface of air and extracellular fluid.a. Hemoglobin b. Myoglobin c. Mucus d. Water e. Surfactantarrow_forward
- The functions of C-shaped tracheal cartilages are to prevent collapse or over-expansion of the airway and to allow expansion of the _____ a. larynx b. esophagus c. vocal cords d. stomacharrow_forwardDuring respiration, oxygen is inhaled through the airways into the alveoli where gas exchange occurs. For each condition described below, state if the flux of oxygen through the blood gas barrier into the pulmonary capillaries increases or decreases. Use Fick’s law to justify your answer. a. Climbing to the top of Mt. Everest b. More abundant but smaller alveoli c. Extreme increase in pulmonary capillary pressure d. Pulmonary fibrosisarrow_forwardSelect the disease which makes lungs lose its elasticity due to the inflammation of alveoli. A. Lung cancer B. Pneumonia C. Bronchitis D. Emphysema Recognize the correct adjustment in our body during acclimatization tohigh altitude. A. Ventilation rate decreases B. Hemoglobin affinity for oxygen increases in the tissue C. Kidney increases urinary excretion of bicarbonate ions D. Hemoglobin production decreasesarrow_forward
- In internal respiration: A. Carbon dioxide moves from alveoli into the capillary. B. Carbon dioxide moves from the capillary into the alveoli C. Carbon dioxide moves from the cells of visceral organs into the capillary. D. Carbon dioxide moves from capillary into cells of visceral organs.arrow_forwardA premature infant develops progressive difficulty breathing over the first few days of life. Deficient surfactant synthesis by which of the following cell types may have contributed to the baby's respiratory problems? A. Alveolar capillary endothelial cells B. Bronchial mucous cells C. Bronchial respiratory epithelium D. Type I pneumocytes E. Type Il pneumocytesarrow_forwardIn human lungs, gas exchange occurs at the______ . a. bronchi c. alveoli b. bronchioles d. pleural sacsarrow_forward
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