EBK HUMAN PHYSIOLOGY
8th Edition
ISBN: 9780134704227
Author: Silverthorn
Publisher: YUZU
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Textbook Question
Chapter 5, Problem 29RQ
NaCl is a nonpenetrating solute and urea is a penetrating solute for cells. Red blood cells (RBCs) are placed in each of the solutions below. The RBC intracellular concentration of nonpenetrating solute is 300 mOsM. What will happen to the cell volume in each solution? Label the solutions with all the terms that apply: hypertonic, isotonic, hypotonic, hyperosmotic, hyposmotic, isosmotic. Watch units! Assume 1 M NaCl = 2 OsM for simplicity.
- a. 150 mM NaCl plus 150 mM urea
- b. 100 mM NaCl plus 50 mM urea
- c. 100 mM NaCl plus 100 mM urea
- d. 150 mM NaCl plus 100 mM urea
- e. 100 mM NaCl plus 150 mM urea
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which of the following is a hypertonic solution (relative to body fluids)? Note: this can occur during a state of dehydration- 500mOsm, 100mOsm, or 300mOsm.
In an investigation of osmosis, apple cores were submerged in different molarity solutions to determine the unknown osmolarity of the apple. To determine the molarity five uniform apple cores were massed before submerging them in different molarity solutions. After 24 hours the apple cores were massed again. Then the percent change in mass was determined for the five uniform apple cores in each molarity solution.
(b) Identify the osmolarity of the apple.
A cell with a total of 0.3 osmol/L is placed into a solution with a total of 0.2 osmol/L. It is assumed that the osmotic particles cannot pass through the cell membrane.
Answer the following true or false questions.
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2. Diffusion down a gradient happens because particles are constantly moving (Kinetic Theory)
3. When solvent particles move down a gradient through a membrane it is called osmosis
Chapter 5 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 5.1 - If the 58-kg Reference Woman has total body water...Ch. 5.1 - A mother brings her baby to the emergency room...Ch. 5.1 - Prob. 6CCCh. 5.1 - Two compartments are separated by a membrane that...Ch. 5.1 - Prob. 8CCCh. 5.1 - Prob. 9CCCh. 5.1 - Prob. 10CCCh. 5.3 - If the distance over which a molecule must diffuse...Ch. 5.3 - Prob. 12CCCh. 5.3 - Which is more likely to cross a cell membrane by...
Ch. 5.3 - Prob. 14CCCh. 5.3 - Prob. 15CCCh. 5.3 - Prob. 16CCCh. 5.4 - Positively charged ions are called _____, and...Ch. 5.4 - Name four functions of membrane proteins.Ch. 5.4 - Prob. 19CCCh. 5.4 - Prob. 20CCCh. 5.4 - If a channel is lined with amino acids that have a...Ch. 5.4 - Prob. 22CCCh. 5.4 - Liver cells (hepatocytes) are able to convert...Ch. 5.4 - Prob. 24CCCh. 5.5 - What would you call a carrier that moves two...Ch. 5.5 - Prob. 26CCCh. 5.5 - Prob. 27CCCh. 5.5 - Name the two membrane protein families associated...Ch. 5.5 - Prob. 29CCCh. 5.6 - Prob. 30CCCh. 5.6 - Prob. 31CCCh. 5.6 - Prob. 32CCCh. 5.6 - Prob. 33CCCh. 5.7 - Prob. 34CCCh. 5 - Using what you learned about the naming...Ch. 5 - Prob. 2CCCh. 5 - Prob. 3CCCh. 5 - Prob. 1RQCh. 5 - Distinguish between active transport and passive...Ch. 5 - Which of the following processes are examples of...Ch. 5 - List four factors that increase the rate of...Ch. 5 - List the three physical methods by which materials...Ch. 5 - A cotransporter is a protein that moves more than...Ch. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - What determines the osmolarity of a solution? In...Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - The membrane potential at which the electrical...Ch. 5 - Prob. 16RQCh. 5 - Create a map of transport across cell membranes...Ch. 5 - Draw a large rectangle to represent the total body...Ch. 5 - What factors influence the rate of diffusion...Ch. 5 - Define the following terms and explain how they...Ch. 5 - Prob. 21RQCh. 5 - Prob. 22RQCh. 5 - Prob. 23RQCh. 5 - Prob. 24RQCh. 5 - Prob. 25RQCh. 5 - Prob. 26RQCh. 5 - The following terms have been applied to membrane...Ch. 5 - Prob. 28RQCh. 5 - NaCl is a nonpenetrating solute and urea is a...Ch. 5 - Prob. 30RQCh. 5 - Prob. 31RQCh. 5 - What is the osmolarity of half-normal saline (=...Ch. 5 - Prob. 33RQCh. 5 - Prob. 34RQ
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