Part B Which of the following statements is FALSE? Which of the following statements is FALSE?...
Part B
Which of the following statements is FALSE?
Which of the following statements is FALSE?
| Water follows the movement of electrolytes. |
| A cell will shrink when the concentration of electrolytes is greater inside the cell than outside the cell. |
| Diffusion is the process whereby substances move from a high concentration of solute to an area of low concentration. |
| Sodium and potassium move across cell membranes by means of special proteins. |
Homework Answers
Sodium and potassium move through special sodium-potassium protein pumps. Diffusion is not defined in terms of solute concentration. It is movement of molecules from their higher concentration to lower concentration. Also, cell will not shrink if it has large number of electrolytes as compared to outside of the cell. The cell will swell as it will take water from outside of the cell to maintain equilibrium.
Hence, second and third statements are false.
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Part B
Which of the following statements is FALSE?
Which of the following statements is FALSE?...
Which of the following statements about diffusion is false? a) Diffusion is the spontaneous movement a...
Which of the following statements about diffusion is false? a) Diffusion is the spontaneous movement a solute from a region of low to high concentration b) Passive diffusion results in the net movement of molecules from high to low concentration c) Diffusion is driven by a tendency of molecules to seek a state of increased disorder d) Diffusion through membranes is decreased by the presence of cholesterol
How are facilitated diffusion and diffusion similar? Both processes involve the movement of solute from an...
How are facilitated diffusion and diffusion similar?
Both processes involve the movement of solute from an area of
low concentration to an area of high concentration.
Both processes involve the movement of solute from an area of
high concentration to an area of low concentration.
In both kinds of movement across a cell membrane, proteins do
not play a role in assisting the passage of compounds and ions
through a membrane.
In both kinds of movement across a cell membrane,...
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09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic...
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FILL THE BLANK The membranes of fishes that live in extreme cold have a high proportion...
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The statements below are about diffusion. Mark each as true or false. 1- It is a...
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33) Which of the following is most likely true of a protein that cotransports glucose and...
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1,Match the descriptions to the type of transport. - A. ...
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Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR...
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How are facilitated diffusion and diffusion similar?
Both processes involve the movement of solute from an area of
low concentration to an area of high concentration.
Both processes involve the movement of solute from an area of
high concentration to an area of low concentration.
In both kinds of movement across a cell membrane, proteins do
not play a role in assisting the passage of compounds and ions
through a membrane.
In both kinds of movement across a cell membrane,...
09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic of all a. Channel proteins can assist polar molecules to cross the plasma membrane by facilitated diffusion b. The gated ion channel can allow ions to pass when stimulated to open. c. The surface of a channel protein in contact with the bilayer would likely have hydrophilic amino acids d. Water plays a role in determining which ions are allowed to pass through an...
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY。 EXERCISE 3-7 Write the appropriate term in each blank from the list below exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its concentration...
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