Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 5, Problem 8RQ
Water moves via osmosis.
- throughout the cytoplasm
- from an area with a high concentration of other solutes to a lower one
- from an area with a high concentration of water to one of lower concentration
- from an area with a low concentration of water to higher concentration
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. A solute cannot move into a cell by crossing the phospholipid bilayer
of the membrane. It can, however, enter through a membrane pro-
tein. The fact that solute molecules are entering the cell MOST
LIKELY indicates that
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the solute is moving against its concentration gradient
the solute molecules are hydrophilic
the cell is in a hypotonic solution
solute concentration is higher inside than outside the cell
itences or clauses with complete thought.
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Table 23: Effect of Osmosis on Red Blood Cells
Concentration of
Concentration of
Internal
Environment
Solute
Outside
the Cell
Water
Inside the
Inside the
Outside
Effect on the Cell
Cell
Cell
the Cell
Hypertonic
Hypotonic
I sotonic
Facilitated Diffusion
OUa to be aided by transport proteins whenever they cross the cell membran
of protein-assisted passive transport is calle
nhonnels th
Since ions and polar molecules cannot diffuse freely through the phospholipid bilayer,
hy dre
Jubutunce, TUr example, how the
When molecules move from areas of high concentration to areas of low
concentration
Label the diagrams of cells using the following terms: diffusion, active transport,
osmosis, facilitated diffusion, or equilibrium. The arrows show the direction of
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High
CO2
levels
8 H20
molecules
25 glucose
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2 H20 molecules
Low CO2 levels
5 glucose molecules
2 H20
molecules
High
protein
levels
10 H20
molecules
10 H2O molecules
Low protein levels
8 H20 molecules
Osmosis Practice Activity
he diffusion of water from an area of high concentration to an area of low concentration.
ences below
helow show the concentration of water and salt inside
Chapter 5 Solutions
Biology 2e
Ch. 5 - Figure 5.12 A doctor injects a patient with what...Ch. 5 - Figure 5.16 Injecting a potassium solution into a...Ch. 5 - Figure 5.19 If the pH outside the cell decreases,...Ch. 5 - Which plasma membrane component can be either...Ch. 5 - Which characteristic of a phospholipid contributes...Ch. 5 - What is the primary function of carbohydrates...Ch. 5 - A scientist compares the plasma membrane...Ch. 5 - Water moves via osmosis. throughout the cytoplasm...Ch. 5 - The principal force driving movement in diffusion...Ch. 5 - What problem is faced by organisms that live in...
Ch. 5 - In which situation would passive transport not use...Ch. 5 - Active transport must function continuously...Ch. 5 - How does the sodium-potassium pump make the...Ch. 5 - What is the combination of an electrical gradient...Ch. 5 - What happens to the membrane of a vesicle after...Ch. 5 - Which transport mechanism can bring whole cells...Ch. 5 - In what important way does receptor-mediated...Ch. 5 - Many viruses enter host cells through receptor-...Ch. 5 - Which of the following organelles relies on...Ch. 5 - Imagine a cell can perform exocytosis, but only...Ch. 5 - Why is it advantageous for the cell membrane to be...Ch. 5 - Why do phospholipids rend to spontaneously orient...Ch. 5 - How can a cell use an extracellular peripheral...Ch. 5 - Discuss why the following affect the rate of...Ch. 5 - Why does water move through a membrane?Ch. 5 - Both of the regular intravenous solutions...Ch. 5 - Describe two ways that decreasing temperature...Ch. 5 - A cell develops a mutation in its potassium...Ch. 5 - Where does the cell get energy for active...Ch. 5 - How does the sodium-potassium pump contribute to...Ch. 5 - Glucose from digested food enters intestinal...Ch. 5 - The sodium/calcium exchanger (NCX) transports...Ch. 5 - Why is it important that there are different types...Ch. 5 - Why do ions have a difficult time getting through...
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- Osmosis Water moving by diffusion across a membrane is called osmosis. Remember, diffusion is the movement of molecules from a high concentration to a lower concentration, in order to reach equilibrium. In the image below, the diamonds represent water and the circles represent solutes. Water will move by osmosis from the side with a higher concentration of water to a side with a lower concentration of water. In other words, water will move by osmosis from the side with a lower concentration of solute to the side with a higher concentration of solute. Water is attracted to solutes. 2. Use the following diagram to answer the questions below. Start by filling in the blanks for the missing % concentrations for beakers B and C. 150ml 100 Beaker A 0% Sugar 100% Water a) What is the solute concentration of: O Beaker A? O Beaker B? 150ml 100 Beaker B % Sugar 90% Water b) What is the solvent concentration of Beaker C? 150ml 100 Beaker C 40% Sugar % Water When we think about solutions in human…arrow_forwardComplete the Cluster Map.arrow_forwardOsmosis Practice Activity Osmosis is the diffusion of water from an area of high concentration to an area of low concentration. Only water moves in osmosis! The diagrams below show the concentration of water and salt inside the cell and the concentration of water and salt surrounding the cell. Complete the sentences below by comparing the concentration of the water inside the cell and the concentration outside the cell. 1. a. Water will flow the cell, out of the cell, in both directions). (into 5% NaCl 95% H20 95% NaCI 5% H20 b. The cell will (shrink, burst, stay the same). a. Water will flow (into the cell. 2. 5% NaCl out of the cell, in both directions). 5% NaCl 95% H20 95% H20 b. The cell will (shrink, burst, stay the same).arrow_forward
- Diffusion and osmosis classification Classify the following characteristics based on whether they are describing diffusion, osmosis, or both. Diffusion Results in an Can occur with equal distribution of solute molecules or without a membrane Always involves the movement of water Requires a semi-permeable membrane Osmosis Involves the movement of gases, ions, and small water soluble molecules Passive form of movement that requires no energy Moves from areas of high concentration to low Both Diffusion and Osmosis Responsible for gas exchange in the lungs concentration A 3 of 15 Next > Cation to open the document "Epicinstaller-13.0.0-fortnite-a8e4f12cada646caa706d8be407be69f (3).msi". tv 22arrow_forwardIdentification.arrow_forwardIdentify whether each method of membrane transport is passive or active by dragging the label to the correct box. Passive Active Receptor-mediated endocytosis Movement down a concentration gradient Movement of molecules from an area of high concentration to an area of low concentration Osmosis Vesicular transport Filtration Pinocytosis Movement up a concentration gradientarrow_forward
- Concentration, Osmosis, and Cell Environments HW Quiz For each of the drawings, label what kind of environment it is in, how you know this, and what is happening to the cell expand and possibly undergo lysis have the vacuole expand and the cell will become turgid This cell is in collapse and become crennated have the vacuole collapse and the cell will become plasmolysed I know this b maintain itself in equilibrium with its environment This cell willarrow_forwardReset Help up During osmosis, water moves higher its concentration gradient. active Diffusion is the movement of solutes from an area of concentration to an area lower of concentration. passive down Osmosis is the movement of a solvent from an area of concentration to an area of concentration across a selectively permeable membrane Diffusion and osmosis are processes.arrow_forwardHow is osmosis different from simple diffusion? osmosis involves the movement of water, simple diffusion involves the movement of solutes simple diffusion utilizes energy in the form of a solute concentration gradient, osmosis utilizes energy in the form of ATP Osimple diffusion moves solutes with their concentration gradient, osmosis moves solutes against their concentration gradient osmosis is a form of active transport, simple diffusion is a form of passive transport Det betalen տներն ոգուarrow_forward
- Please help mearrow_forwardMatchingarrow_forwardTONICITY DRAG THE WORDS INTO THE BLANK SPACES BEL@W TO ACCURATELY COMPLETE THE PARAGRAPH Hypertonic Isotonic Hypotonic Hypertonic Lsotonic Hypotonic animal cell plant cell A Above are a represented plant cell and an animal cell. Refer to the key on slide 5 and fill in the blanks below. (If you find yourself counting solute dots, you're working much too hard!) Assume that the cell membranes are allow only water (not the solutes) to pass through. Because the cytoplasms of the plant and the animal cell have equal concentrations of solutes, we can say that their cytoplasms are to each other. If we put both the plant and the animal cells into Solution A, we would expect no change in the cells, because Solution A is to the cytoplasm of each cell.arrow_forward
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