A migrating fish would be rapidly transferring substances across cell membranes. These substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of those would be most likely to be moved via active transport? Why? What is a transmembrane gradient? What is an electrochemical gradient?

A migrating fish would be rapidly transferring substances across cell membranes. These substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of those would be most likely to be moved via active transport? Why? What is a transmembrane gradient? What is an electrochemical gradient?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 5UC

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Similar questions

1) You are studying a transport protein. It appears to bind temporarily to the molecule to be transported. During normal transport, no energy is expended. The addition of a particular molecule that closely resembles the normally transported molecule inhibits transport. An increase in the concentration of the normally transported molecule in the presence of a constant concentration of the inhibitor increases the rate of transport. What kind of transport is described? 2) What are peripheral membrane proteins?
Migrating fish would be rapidly transferring substances across cell membranes. The substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of these would most likely be moved via active transport? Why?
In Chapters 11 & 12, the following examples of membrane transport proteins are given. Fill out the table with the correct answer for that particular transport protein. Type of transport protein (channel or carrier/transporter?) K* leak channel glucose transporter bacteriorhodopsin Na-K pump glucose-Na symport Na-H exchanger Performs active or passive transport? Energy source for movement of solute(s) or ion(s) Direction of movement of solute(s) or ion(s) with respect to the electrochemical gradient Na K* Na glucose Na H' Direction of movement of solute(s) or ion(s) with respect to the membrane crossed Na K₁ Na' glucose Na H' Is the protein a uniport, symport, antiport, or none of the above?
A migraine fish would be rapidly transferring substances across cell membrane. The substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of those would most likely be moved via active transport? Why?
Define the terms (i) facilitated diffusion, (ii) primary active transport and (iii) secondary active transport. Identify which of these transport types the following are examples of: a) ATP/ADP translocase b) K^+ channels c) Bacteriorhodopsin
The salt concentration in the cytosol of body cells of seawater fish is lower than it is in their environment. This causes the fish to continually lose water. To compensate for this loss, seawater fish continuously ingest water and rely on membrane-bound proteins on their gills for the removal of salt ions back to the environment. Which of the following describes the most likely mechanism of membrane transport used by seawater fish to remove the salt ions? A B с D exocytosis simple diffusion active transport facilitated diffusion
What is the primary difference between passive and active transport in terms of concentration gradients?
For each type of membrane transport, know the following:– Is a transporter protein required? If so, what type?– Is there an energy requirement, and if so, what is the energy source?– What is the relative rate of solute transport based on molecule type? On concentration gradient?– What are examples of the types of solutes transported by carriers and channels?
Label the examples: Na+/K+ pump Na+ and glucose Ca+ and Na+ H+/K+ pump K+ and Cl- Cl- and HCO3- Are they either 1)Secondar active transport: counter transport 2) primary active transport 3) secondary active transport : contransport
The transport of a molecule is investigated using two chambers (left and right) separated by a synthetic membrane containing transport proteins. A solution containing varying concentrations of the molecule is added to the left side while pure water is added to the right. The transport rate of the molecule is determined by measuring the concentration of molecule that accumulates on the right side. The following table summarizes the transport rate of the molecule at various concentrations. Based on this you can conclude: a) the molecule is most likely transported by facilitated diffusion b) the molecule is moving across the membrane by passive transport c) the membrane is freely permeable to the molecule d) the molecule is most likely transported by active transport
Which is the complete description of active transport? The movement of molecules from an area of higher concentration to an area of lower A concentration across a selectively permeable membrane which uses metabolic energy from ATP. The movement of molecules from an area of higher concentration to an area of lower B concentration across a selectively permeable membrane which does not use metabolic energy from ATP. The movement of molecules from an area of lower concentration to an area of higher C concentration across a selectively permeable membrane which uses metabolic energy from ATP and transport proteins. The movement of molecules from an area of lower concentration to an area of higher D concentration across a selectively permeable membrane which does not use metabolic energy from ATP and transport proteins.
What is another way to answer this question Describe various examples of active transport. How is active transport different from passive transport? Without saying this: Active transport is when cells move against the flow/ concentration gradient, moving from low concentrations to high concentrations. Because of this, active transport requires ATP to work. Passive transport is different because it doesn't use much energy and moves from high concentration to a low concentration. Some examples of active transport are the Sodium-potassium pump ( the most well known one) where it takes sodium ions and pumps them outside of the membrane to let in potassium ions. Another one in plants is when a plant receives ions from the soil. The soil has a much lower concentration of ions than a plants root does, so ions have to move against the concentration gradient. Endocytosis and exocytosis are also forms of active transport. Where cells engulf its self around large molecules to bring…