**Understanding Osmosis in Plant and Animal Cells**This educational module illustrates the effects of osmosis on plant and animal cells in different tonic environments. Follow along to understand how cells respond under isotonic, hypertonic, and hypotonic conditions.**Instructions:**Mark the flow of water with an arrow for cells placed in solutions of differing tonicity. Indicate the resulting changes to both plant and animal cell shapes under each condition.### (a) Environment: Isotonic**Diagram Explanation:**- Isotonic Condition: The solute concentration outside the cell is equal (isotonic) to the inside of the cell.- Illustration shows an equilibrium, suggesting no net movement of water.**Expected Changes:**- Plant Cell Shape: [No Change]- Animal Cell Shape: [No Change]### (b) Environment: Hypertonic**Diagram Explanation:**- Hypertonic Condition: The solute concentration outside the cell is higher (hypertonic) than the inside of the cell.- The illustration demonstrates water molecules moving out of the cell, denoted by arrows pointing outward.**Expected Changes:**- Plant Cell Shape: [Plasmolysis] (The cell membrane pulls away from the cell wall as water exits.)- Animal Cell Shape: [Crenation] (The cell shrinks and appears wrinkled as water exits.)### (c) Environment: Hypotonic**Diagram Explanation:**- Hypotonic Condition: The solute concentration outside the cell is lower (hypotonic) than the inside of the cell.- The illustration shows water molecules moving into the cell, represented by arrows pointing inward.**Expected Changes:**- Plant Cell Shape: [Minor Swelling] (The cell swells but is protected from bursting by its cell wall.)- Animal Cell Shape: [Swelling and Lysis] (The cell may swell and potentially burst as it takes in excess water.)Explore these conditions to gain a deeper understanding of cellular osmoregulation. Use this knowledge to predict cell behavior in varying environmental contexts.

INTRODUCTION Osmosis This is the movement of solvent particles through a semipermeable membrane from…

Mark the flow of water with an arrow for cells that have been placed in solutions of differing tonicity. Indicate what will happen to a plant and animal cell under each of these conditions. Direction of osmosis Plant cell Animal cell shape minor swelling shape The solute concentration outside the cell is isotonic (or equal) to the inside of the cell. No change swelling and lysis plasmolysis crenation Reset Zoom (a) Outside isotonic The solute concentration outside the cell is hypertonic to the inside of the cell. (b) Outside hypertonic The solute concentration outside the cell is hypotonic to the inside of the cell. (c) Outside hypotonic Solute Cytosol ©2018 McGraw-Hill Education.

Mark the flow of water with an arrow for cells that have been placed in solutions of differing tonicity. Indicate what will happen to a plant and animal cell under each of these conditions. Direction of osmosis Plant cell Animal cell shape minor swelling shape The solute concentration outside the cell is isotonic (or equal) to the inside of the cell. No change swelling and lysis plasmolysis crenation Reset Zoom (a) Outside isotonic The solute concentration outside the cell is hypertonic to the inside of the cell. (b) Outside hypertonic The solute concentration outside the cell is hypotonic to the inside of the cell. (c) Outside hypotonic Solute Cytosol ©2018 McGraw-Hill Education.

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 6RE

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Two to three drops of mouse blood samples were placed in three different vials containing 0.07 M NaCl,0.15 M NaCl, and 0.30 M NaCl. A drop from each of the three vials were obtained and put on a slide forobservation under HPO. The effects of the different osmotic concentrations on the cells are shown in figures in your worksheets. Label the cell membrane for each figure. Give a short description (size and cell shape) for each of the RBC samples on the space provided in your worksheet. Compare their appearances with RBCs in the blood smear. Use the following guide questions in providing descriptions for each item. Which preparation has cells that look similar as those in the blood smear? What does this indicate about the movement of water in the cells? In which solution do the cells appear differently from the normal RBCs? What part of the cell could have possibly controlled such movement of water? What is its property that allowed this movement?
;, Consider a spherical cell at body temperature (37°C) that is 10 µm in radius. The concentration of ions inside and outside the cell are given below. Sodium and potassium are the only permeant ions, and the membrane contains proteins that pump in 3 sodium ions for every 2 potassium ions pumped out. [Na*] = ? [K*] = 119mM [Ci] = 8mM [A] = 121mM [Na*] = 120mM [K*] = ? [Cr] = 125MM [glu] = ? (a) Suppose the cell is in osmotic equilibrium, find the 3 unknown concentrations. (b) Suppose the membrane conductance to sodium is 5% that to potassium, find the resting membrane potential via circuit analysis. (c) What would the resting potential be if the membrane were instead permeable only to chloride ions? (d) Suppose the cell was suddenly placed in distilled water, what would happen to it? And, how much external pressure (positive or negative) would be needed to prevent this from happening?
This is a homework question Define osmosis and describe how the first experiment, "Osmosis in Potatoes," demonstrates this molecular transport mechanism.
Given the following cell type and solutions, draw the cell, showing the net direction of osmosis (water flow) and say what state the cell will be in. Choose from the following terms to describe the state of the cell: Turgid, flaccid, plasmolyzed, crenulated (shriveled), lysed (burst), normal. An animal cell with an internal osmolarity of 0.32 M (total concentration of all the solutes in solution) that is placed in a solution of 0.32 M NaCl.
1) We measured weights before and after soaking a potato in water of different salinities to demonstrate osmosis. There are many other types of membrane transport (as we learned from the Amoeba Sisters!), each with their role in maintaining homeostasis and providing energy, communication, and waste removal for the cell. So why dwell on osmosis? There are some practical bigger- picture things to consider. Choose one of the following scenarios. Describe the scenario. Describe the chain of events terms of tonicity_and movement of water into or out of cells represented by the scenario. Describe the predicted outcomes for the cells/organisms involved. What happens when you dry brine a turkey before cooking? ● • What happens to organisms in soil near salted roads when snow melt and rains occur? Why is sugar considered a good preservative? What is the challenge of heavy rains along the Mississippi River for organisms in the Gulf of Mexico? ● • What happens to fruit when you add sugar? ●
Define osmosis and solve simple problems involving osmosis; for example, predict whether cells will swell or shrink under various osmotic conditions.
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 22
The distribution of water is determined by solute concentrations. A hypertonic solution would cause a body cell to shrink in size. Both statements are true. Both statements are false. The first statement is true and the second statement is false. The first statement is false and the second statement is true. Spaced practice question: Consider a membrane protein and its chemistry. Which of the following would describe a channel protein? It is an inorganic compound. It is an example of a globular (functional) protein. It is stable when exposed to an acidic environment. It is an example of a fibrous (structural) protein.
Model 2 - Selectively Permeable Cell Membrane and Simple Diffusion Extracellular Fluid Wwwwww Cytoplasmic Fluid Extracellular Fluid www Cytoplasmic Fluid www w wwwwww www www.x www. www. www www www. ACTE Omw ww ww Type lions Type 2 molecules (glucose) Extracellular Fluid Wwwwwww Cytoplasmic Fluid Extracellular Fluid ww Cytoplasmic Fluid d wwwx w mo AM 8 MO m un www m 8 www www.x www. Summ Type 3 Urea molecules upe 4 oxygen molecules The four diagrams in Model 2 illustrate movement of four types of substances (see the table in Model 1 - the symbols in this model correspond with those from the previous model) across a phospholipid bilayer (extracellular fluid on left and cytoplasmic fluid on right). of 3. Label each diagram in Model 2 with the ion or molecule type (i.e., large/small, polar/nonpolar/charged) based on the information (including the symbols) in Model 1. 4. Assume the substances in Model 2 were on only one side of the membrane to start. The diagrams illustrate what would…
Consider the artificial cell experiment below: Lactose 2.0 M Ca+ = 0.4 M The ion channels in the membrane will allow Ca+ to pass freely, but nothing else. The starting conditions for the experiment are shown. Rewrite the following statement to make it correct: "The calcium ions will move across the membrane because ion channels allow active transport." Lactose = 0.1 M Ca+ = 3.0 M Edit View Insert Format Tools Table 12pt ✓ Paragraph :
What is the role of lysozyme and a low ionic strength extraction buffer? Select all that apply. Cells absorb water from a low ionic strength extraction buffer, by osmosis, swell and lyse, releasing their contents Lysozyme breaks down bonds in the cellulose cell wall of plants, weakening the structure Cells release water into a low ionic strength extraction buffer by osmosis, shrink and lyse, releasing their contents Lysozyme is an enzyme found in lysosomes in cells Lysozyme breaks down bonds in the peptidoglycan cell wall of bacteria, weakening the structure Lysozyme is an antibiotic found in tears, saliva, human milk and mucus.
Liver cells are in contact with the blood and exchange a variety of substances with the blood plasma (the noncellular part of blood). The concentration of water is equal in the cytoplasm of liver cells and in the blood plasma. Explain this observation in terms of membrane permeability and transport mechanisms. Animal cells typically maintain a higher concentration of Na+ outside the cell and a higher concentration of K+ inside the cell via the Na+-K+ pump. The drug ouabain inhibits the activity of the Na+-K+ pump. A nerve cell is incubated in ouabain. Predict what will happen to the concentrations of Na+ and K+ inside and outside the nerve cell as a result.