Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 41, Problem 19CTQ
Why do electrolyte ions move across membranes by active transport?
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Two NaCl solutions, Solution A and Solution B, are separated by a selectively permeable membrane. You observe that the movement of solvent is from Solution B to Solution A. Which solution initially had the higher salt concentration?
Question 2 options:
a)
solution A
b)
solution B
c)
Neither
How does the process of primary active transport work?
What is an example of facilitated diffusion and osmosis in the body?
Chapter 41 Solutions
Biology 2e
Ch. 41 - Figure 41.5 Which of the following statements...Ch. 41 - Figure 41.6 Which of the following statements...Ch. 41 - Figure 41.8 Loop diuretics are drugs sometimes...Ch. 41 - When a dehydrated human patient needs to be given...Ch. 41 - The sodium ion is at the highest concentration in:...Ch. 41 - Cells in a hypertonic solution tend to: shrink due...Ch. 41 - The macula densa is/are: present in the renal...Ch. 41 - The osmolarity of body fluids is maintained at...Ch. 41 - The gland located at the top of the kidney is the...Ch. 41 - Active transport of K+ in Malpighian tubules...
Ch. 41 - Contractile vacuoles in microorganisms:...Ch. 41 - Flame cells are primitive excretory organs found...Ch. 41 - BUN is. blood urea nitrogen blood uric acid...Ch. 41 - Human beings accumulate ____before____ excreting...Ch. 41 - Renin is made by. granular cells of the...Ch. 41 - Patients with Addison's disease retain water...Ch. 41 - Which hormone elicits the 'fight or flight”...Ch. 41 - Why is excretion important in order to achieve...Ch. 41 - Why do electrolyte ions move across membranes by...Ch. 41 - Why are the loop of Henle and vasa recta important...Ch. 41 - Describe the structure of the kidney.Ch. 41 - Why might specialized organs have evolved for...Ch. 41 - Explain two different excretory systems other than...Ch. 41 - In terms of evolution, why might the urea cycle...Ch. 41 - Compare and contrast the formation of urea and...Ch. 41 - Describe how hormones regulate blood pressure,...Ch. 41 - How does the renin-angiotensin-aldosterone...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why is ATP required for active transport?arrow_forwardIf two solutions separated by a semi-permeable membrane are isotonic, can you conclude that they are in chemical equilibrium?arrow_forwardWhat type of transport is illustrated by the protein that simultaneously pump H+ and surcose across a membrane?arrow_forward
- The type of transport shown in this figure is best described by which of the following pairs of terms: Low High High Lowarrow_forwardWhat general conclusion can you make concerning the movement of water? There is always a net movement of water by osmosis toward (a) an isotonic solution, (b) a hypotonic solution, or (c) a hypertonic solution.arrow_forwardWhat type of transport is shown?arrow_forward
- Define osmosis, and describe how osmotic pressure iscreated. As the concentration of a solution increases, whathappens to its osmotic pressure and to the tendency forwater to move into the solution?arrow_forwardRed blood cells with an internal osmolarity of 300 mOsM/L are placed in a solution containing 300mOsm/L glucose. Which of the following must be TRUE about the solution? a) the solution is isosmotic b) the solution is isotonic c) both A and B d) Neither A nor Barrow_forwardThe three fundamental classes of proteins involved in transport across membranes are: i) channelsii) pumpsiii) exchangers For each class, describe its essential features, explain how transport is accomplished and name at least one representative example.arrow_forward
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