BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 47, Problem 5U
Fick’s Law of Diffusion states the rate of diffusion is directly proportional to
a. the area differences between the cross section of the blood vessel and the tissue.
b. the pressure differences between the two sides of the membrane and area over which the diffusion occurs.
c. the pressure differences between the inside of the organism and the outside.
d. the temperature of the gas molecule.
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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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- Which of these statements about carrier-mediated facilitated diffusion is true? a. It uses cellular ATP. b. It is used for cellular uptake of blood glucose. c. It is a form of active transport. d. None of these are true.arrow_forwardWhich of the following occurs when erythrocytes are transferred from an isotonic solution to a hypertonic solution? Water leaves the cell and results to crenation. B Water leaves the cell and results to osmotic lysis. C) Water enters the cell and results to crenation. D Water enters the cell and results to plasmolysis.arrow_forwardOver the course of life, the diffusion capacity decreases by aboutA. 5 percent B. 10 percent C. 15 percent D. 20 percentarrow_forward
- How much time would it take ATP to diffuse the following distances? (Use the equation for mean squared displacement in 1 dimension.) A. 1 µm (roughly the size of a bacterium) B. 6 µm (roughly the diameter of a T cell) C. 1 m (roughly the length of the axon of the sciatic nerve, which extends from the spinal cord to the big toe) D. Besides diffusion, what other mechanisms might a neuron use to transmit signals and transport molecules?arrow_forwardA 500mL beaker is equally divided by a membrane permeable only to NaCl. Side A contains 250mL of a 1x10-6M of NaCl. Side B contains 250mL 1x10-12M of NaCl. In which direction will the NaCl diffuse? Select one: a. Diffuse Side A to Side B. b. Diffuse Side B to Side A. c. No diffusion will occur; it is already at equilibrium.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_forward
- The rate of diffusion increases if thea. concentration gradient decreases.b. temperature of a solution decreases.c. viscosity of a solution decreases.d. All of these are correct.arrow_forwardOxygen and carbon dioxide are exchanged in the lungs and through all cell membranes diffusion down gradients of a. concentration b. tempertaure c. partial pressure d. ionic potential e. osmolarityarrow_forward8)After blood is “used” by cells, in other words they’ve taken the oxygen, where does it go? Select one: a. Back to the lungs for more oxygen b. Back to the heart and then on to the lungs for more oxygen c. Back to the heart to return to the body for more oxygen d. Back to the capillary beds for more oxygen e. Back to the brain, where the oxygen level is monitoredarrow_forward
- under what circumstances does diffusion and bulk flow work most efficiently?arrow_forwardWhich of the following is true about the proximal histidine of hemoglobin? A. It forms a hydrogen bond with bound oxygen. B. It is bonded to the Fe2+ atom coordinated by heme C. It binds oxygen D. It is not consumed in myoglobinarrow_forwardIn Florida every hurricane season, residents that have generators are warned to make sure their generators are well-ventilated and placed outside the home. You have been hired by the state to create a public service announcement to warn the general public about the use of generators indoors after a hurricane. Your supervisor wants you to explain to the public the diffusion process in the lungs and how it is related to possible death from inhaling carbon monoxide exhaust from the generator. Diffusion in the lungs explained Why diffusion of oxygen across the membrane may still occur but it won't be delivered to cells. Effect of CO on hemoglobinarrow_forward
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