Which situation would lead to the highest rate of oxygen diffusion from a lveoli into blood?...
Which situation would lead to the highest rate of oxygen diffusion from a lveoli into blood? a) higher oxygen concentration in the alveoli. b) lower oxygen concentration in the alveoli. c) higher oxygen partial pressure in the alveoli. d) lower oxygen partial pressure in the alveoli.
Homework Answers
Answer : C - because an modification in the partial pressure which is high in alveoli to the lower pressure in the capillaries since the pressure gradient exists and the oxygen diffuses down its pressure gradient so it can shift the oxygen into the blood.
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Which situation would lead to the highest rate of oxygen
diffusion from a lveoli into blood?...
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...
Fick's Law of diffusion (p. 137 Silverthorm) governs the rate at which oxygen moves from the...
Fick's Law of diffusion (p. 137 Silverthorm) governs the rate at which oxygen moves from the alveolar space to the blood where: Explain how each condition below affects gas exchange by indicating which factor affecting the rate of diffusion is influenced (surface area, concentration gradient, or membrane permeability.) In each case state whether the factor increases or decreases the rate of gas exchange. In addition to the properties of membranes above, you will also need to consider the factor of...
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...
Question 6 (1 point) Which of the following statements are accurate? Oxygen is not the most...
Question 6 (1 point) Which of the following statements are accurate? Oxygen is not the most abundant gas in the atmosphere. Diffusion of gases is 'better' across single cells that are thin than layers of thin cells. Gas exchange in humans occurs in the lungs at the structures called alveoli. Diffusion of gas occurs from areas with a higher partial pressure to an area of lower partial pressure. Organisms with gills may use a countercurrent exchange mechanisms to extract more...
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...
1) Respiratory gases cross the respiratory membrane by____ A) simple diffusion B) active transport C) osmosis...
1) Respiratory gases cross the respiratory membrane by____ A) simple diffusion B) active transport C) osmosis D) facilitated diffusion 2) Which environment separated by the respiratory membrane would display the highest oxygen partial pressure? A) alveolar air B) pulmonary capillary blood
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...
During respiratory exchange, carbon dioxide moves from the blood into the alveoli due to: the presence...
During respiratory exchange, carbon dioxide moves from the blood into the alveoli due to: the presence of a permease , which removes carbon dioxide from the capillaries. the contraction of the diaphragm, which creates a vacuum that pulls it out. diffusion down a concentration gradient. the air pressure of dissolved oxygen, which forces it out. two of the choices are correct
The partial pressure of oxygen in the lung alveoli is a bit lower than in ambient...
The partial pressure of oxygen in the lung alveoli is a bit lower than in ambient air, being about 100 mm of mercury, or 0.13 Atm (it is lower than the partial pressure in air mainly because oxygen is continually taken up by the alveolar capillaries and carbon dioxide is continually released into the alveoli). In cell-free blood plasma (or a saline solution formulated to match key characteristics of blood plasma), which lacks red blood cells and therefore lacks hemoglobin,...
Fick's Law of diffusion (p. 137 Silverthorm) governs the rate at which oxygen moves from the alveolar space to the blood where: Explain how each condition below affects gas exchange by indicating which factor affecting the rate of diffusion is influenced (surface area, concentration gradient, or membrane permeability.) In each case state whether the factor increases or decreases the rate of gas exchange. In addition to the properties of membranes above, you will also need to consider the factor of...
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 6 (1 point) Which of the following statements are accurate? Oxygen is not the most abundant gas in the atmosphere. Diffusion of gases is 'better' across single cells that are thin than layers of thin cells. Gas exchange in humans occurs in the lungs at the structures called alveoli. Diffusion of gas occurs from areas with a higher partial pressure to an area of lower partial pressure. Organisms with gills may use a countercurrent exchange mechanisms to extract more...
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...
During respiratory exchange, carbon dioxide moves from the blood into the alveoli due to: the presence of a permease , which removes carbon dioxide from the capillaries. the contraction of the diaphragm, which creates a vacuum that pulls it out. diffusion down a concentration gradient. the air pressure of dissolved oxygen, which forces it out. two of the choices are correct
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