Homework Answers
Q19. a. the concentration of oxygen is higher in the blood than tissues of the body.
Gas exchange between blood and tissue depends on the partial pressure gradients of Oxygen and carbon dioxide. The partial pressure gradient of oxygen is 60 mmHg which is much higher than the partial pressure gradient of carbon dioxide (5 mmHg). So higher oxygen concentration in blood plays as driving force for oxygen diffusion from blood to tissues.
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QUESTION 19 During internal respiration, the oxygen diffuses from the blood vessels into the tissues because...
Oxygen diffuses from blood into tissues because A. oxygen concentration in tissue is lower B. oxygen concentration in tissue is higher C. carbon dioxide concentration in tissue is higher D. ca...
Oxygen diffuses from blood into tissues because A. oxygen concentration in tissue is lower B. oxygen concentration in tissue is higher C. carbon dioxide concentration in tissue is higher D. carbon dioxide concentration in tissue is lower
QUESTION 17 Which correctly describes the concentration gradient that exists for oxygen and carbon dioxide Oxygen...
QUESTION 17 Which correctly describes the concentration gradient that exists for oxygen and carbon dioxide Oxygen concentration is higher in the lungs than in the blood returning from the body Oxygen concentration is higher in the tissues of the body than the blood coming from the lungs Carbon dioxide concentration is higher in the blood coming from the lungs than the tissues of the body Carbon dioxide concentration is higher in the alveoli than the blood returning from the body...
When blood passes by body cells, the body cells release oxygen and carbon dioxide to the...
When blood passes by body cells, the body cells release oxygen and carbon dioxide to the blood take up oxygen and carbon dioxide from the blood take up oxygen and release carbon dioxide to the blood none of these choices are correct Question 19 1 pts An increase in the concentration of carbon dioxide in the newborn baby's blood signals it to breath. True False
The production of carbon dioxide during respiration in aerobic tissues lowers the pH in erythrocytes, which...
The production of carbon dioxide during respiration in aerobic tissues lowers the pH in erythrocytes, which in turn ________ the affinity of oxygen binding to hemoglobin. A. Decreases B. Increases C. Equalizes
Name 13. During gas exchange in the lungs, several factors affect the rate of gas diffusion acros...
Name 13. During gas exchange in the lungs, several factors affect the rate of gas diffusion across alveolar (the alveoli are tiny air sacs in the lungs) and tissue membranes. One of the factors is the difference in partial pressures of the gases across the membranes. The gases will diffuse from an area of high partial pressure to an area of low partial pressure, Look at the illustration below and note which blood vessels carry blood away from the lungs...
A. . Hyperpnea would result in ___________________________ within the blood. an increase in both Pressure (oxygen)...
A. . Hyperpnea would result in ___________________________ within the blood. an increase in both Pressure (oxygen) and Pressure (carbon dioxide) 2. Decreased Pressure (carbon dioxide) results in an increase in blood pH levels. Both of these conditions result in a shift of the oxygen-hemoglobin dissociation curve to the ______________________. This shift _______________ hemoglobin’s affinity for oxygen. select 3. Increased levels of 2,3 BPG occur in response to decreased blood pH levels. With all other variables unchanged, an increased concentration of...
A mitochondrion in a cell undergoing cellular respiration would.. A. have a higher concentration of oxygen...
A mitochondrion in a cell undergoing cellular respiration would.. A. have a higher concentration of oxygen than the surrounding cytosol B. lose oxygen by diffusion C. lose carbon dioxide by diffusion D. gain oxygen by being in direct contact with hemoglobin
The function of surfactant is to? A. transport the oxygen from the air to the blood,...
The function of surfactant is to? A. transport the oxygen from the air to the blood, B. transport the carbon dioxide from the blood to the air, C. prevent each alveolus from collapsing as air moves in and out during respiration, D. trap foreign particles as they enter the bronchial tree
Question 7 (1 point) Which of the following statements are accurate? O In an average, healthy...
Question 7 (1 point) Which of the following statements are accurate? O In an average, healthy human, the partial pressure of carbon dioxide is usually higher in the the body tissues than the systemic arteries. In an average, healthy human, the partial pressure of carbon dioxide is usually higher in the the blood in systemic veins than the alveoli. In an average, healthy human, the partial pressure of oxygen is usually higher in the systemic arteries than in the body...
Which of the following is correct? Question 8 options: A) The partial pressure of oxygen in...
Which of the following is correct? Question 8 options: A) The partial pressure of oxygen in systemic venous blood is normally 40 mm Hg. B) The partial pressure of carbon dioxide in systemic venous blood is normally 40 mm Hg. C) The partial pressure of oxygen is normally lower in the alveoli than in systemic arterial blood. D) The partial pressure of carbon dioxide is normally higher in the alveoli than in systemic arterial blood. E) The partial pressures of...
QUESTION 17 Which correctly describes the concentration gradient that exists for oxygen and carbon dioxide Oxygen concentration is higher in the lungs than in the blood returning from the body Oxygen concentration is higher in the tissues of the body than the blood coming from the lungs Carbon dioxide concentration is higher in the blood coming from the lungs than the tissues of the body Carbon dioxide concentration is higher in the alveoli than the blood returning from the body...
When blood passes by body cells, the body cells release oxygen and carbon dioxide to the blood take up oxygen and carbon dioxide from the blood take up oxygen and release carbon dioxide to the blood none of these choices are correct Question 19 1 pts An increase in the concentration of carbon dioxide in the newborn baby's blood signals it to breath. True False
Name 13. During gas exchange in the lungs, several factors affect the rate of gas diffusion across alveolar (the alveoli are tiny air sacs in the lungs) and tissue membranes. One of the factors is the difference in partial pressures of the gases across the membranes. The gases will diffuse from an area of high partial pressure to an area of low partial pressure, Look at the illustration below and note which blood vessels carry blood away from the lungs...
Question 7 (1 point) Which of the following statements are accurate? O In an average, healthy human, the partial pressure of carbon dioxide is usually higher in the the body tissues than the systemic arteries. In an average, healthy human, the partial pressure of carbon dioxide is usually higher in the the blood in systemic veins than the alveoli. In an average, healthy human, the partial pressure of oxygen is usually higher in the systemic arteries than in the body...
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