The intracellular salt content of a red blood cell is about 150 mM. The cell is put in a 500 mM salt beaker. (a) Describe what will happen to the cell in terms of osmosis if the cell membrane is permeable to water but not to ions. (b) Which direction would solutes diff use if the membrane was permeable to ions: into or out of the cell?
Q: A hypothetical cell has a higher concentration of sodium ions outside the cell than inside the cell…
A: A solution is said to be a homogeneous mixture of two or more components in any one phase(solid,…
Q: In the experiment showing osmosis through a semipermeable membrane, 3 corn syrup mixtures are used.…
A: Osmosis is the movement of water from its region of higher concentration to its region of low…
Q: When a semipermeable sac filled with a solution containing 10% glucose is immersed in water, the…
A: Answer: Semipermeable membrane : It is the membrane which allows the passage of some molecules, ions…
Q: If you made a hematocrit in two tubes. Tube A is made of 0.60M NaCl, and Tube B is made of 1.00M of…
A: Introduction Hematocrit is a measure of the size and amount of red blood cells in an individual. Red…
Q: What substance would you most expect to easily pass through a cell membrane (phospholipid layer)…
A: Cell membrane forms boundary of cell. It separates outside environment from inside environment.…
Q: Difference between Osmosis and Diffusion
A: Passive transport is a movement of ions or solvent across cell membranes without the need for energy…
Q: how can osmosis be applied to the physiological principle of a controlled exchange of materials…
A: Osmosis is the transfer of water through a semipermeable layer as indicated by the concentration of…
Q: Construct a graph showing difusión time vs column height: don't forget to label axis. Consider how…
A: Diffusion is the movement of a substance from an area of high concentration to an area of low…
Q: Would it be possible for small ions to passively diffuse (simple diffusion) across a selectively…
A: The plasma membrane is a selectively permeable membrane that regulate the transportation of…
Q: How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it…
A:
Q: How do neutral solutes move across the plasma membrane? Can the polarmolecules also move across it…
A: The plasma membrane separates the cell from the external environment and it controls the movement of…
Q: Explain: what is osmosis? what are hypertonic, hypotonic, and isotonic cells?
A: The passage of a liquid through a semipermeable membrane toward a higher concentration of solute is…
Q: what happens to cells when the concentrations of nonpenetrating solutes across the cell membrane are…
A: Solutes can be penetrating or non-penetrating based on their ability to cross the membrane present…
Q: Ms. Sassa, a biology professor, wanted to demonstrate to her students the applicability of a…
A: Dialysing membrane act as a semipermeable membrane allowing only certain substances to pass through…
Q: Selectively permeable membrane Column A contains 1 Osm solution of glucose and the column B contains…
A: The osmosis is the movement of solvent molecules from lower concentration area or high water…
Q: The osmolarity of physiological saline solution is 0.30 osmol/L. Assuming that the cell membrane is…
A: Solution will be hypotonic as the medium has less amount of solute as compared to the cell.
Q: At equilibrium during osmosis, is equal on both sides of the membrane.
A: Osmosis is process of transport of a solvent through a semipermeable membrane that separates two…
Q: The diffusion coefficient for potassium ions crossing a biological membrane 10 nm thick is 1.0 x…
A: Given values: Diffusion coefficient- 1.0 x 10-11 m2/s thickness - 10 nm = 10 x 10-10m Area - 100 nm…
Q: A concentration gradient for water must be present in cells for osmosis to occur. Which bag…
A:
Q: What is an example of facilitated diffusion and osmosis in the body?
A: Facilitated diffusion is the movement of a molecule from an area of high concentration to an area of…
Q: Where do random motion and active transport occur in cells? How do the velocities of vesicles moving…
A: Vesicles are small structures made up of a lipid bilayer with a liquid inside. These are found…
Q: How does the arrangement of phospholipid molecules in the cell membrane give the membrane selective…
A: The cell membrane is selectively permeable
Q: Which of the following about osmosis is true?
A: Osmosis is one of the methods of the transport of solvent between two cells through a semi-permeable…
Q: In general, what is the relationship between membrane fluidity and membrane permeability?
A: The protective plasma membrane, sometimes also known as the cell membrane, has a bilayer of lipids,…
Q: Which of the following factors would tend to increasemembrane fluidity?(A) a greater proportion of…
A: All the cells are surrounded by a cell membrane. This semi-permeable membrane provides protection to…
Q: How is osmolarity the same inside and outside of the cell if the ions are different on both sides?
A: Cells are surrounded by a semi-permeable cell membrane. The cell membrane is made of a phospholipid…
Q: What would be the tonicity of a solution containing only a highly permeant solute Isotonic,…
A: Introduction A solution is a mixture of solvent and solute molecules that is homogenous. A solvent…
Q: In osmosis, water flows from hypertonic/hypotonic/isotonic solutions to…
A: There are three types of solutions based on the concentration difference of solutes and solvents…
Q: What effect might a solvent such as ethanol have on membrane permeability?
A: The protective plasma membrane, commonly known as the cell membrane, is made up of a bilayer of…
Q: Based on a hypothesis of the osmolarity of potato tissue, what results might be predicted from this…
A: its an osmolarity Lab experiment in which potato is kept in a Succorse solution and there is an…
Q: The osmolarity of plasma is maintained at about 300 mOsM. What would the osmolarity inside a red…
A: To maintain at equilibrium which means neither the fluid or electrolytes will
Q: 1. Ms. Sassa, a biology professor, wanted to demonstrate to her students the applicability of a…
A: Dialysis : It is a process of of separating the molecules present in a solution through a…
Q: A red blood cell has an internal salt concentration of ∼150 mM. The cell is placed in a beaker of…
A: Hypertonicity is the condition, where the solution has a greater amount of solute than inside.
Q: Solution A is hyperosmotic to solution B. If solution A is separatedfrom solution B by a selectively…
A: Osmosis is the process by which there will be a net movement of a solvent through a selectively…
Q: Define the following terms: osmosis, osmolarity, hypertonic, hypotonic, isotonic What.
A: Osmotic Solutions There are three different types of solutions: Isotonic Solution Hypertonic…
Q: Explain to me what factors influence permeability versus solubility?
A: To understand the factors effecting the solubility and permeability it is essential to understand…
Q: Define diffusion. How does this differ from osmosis?
A: Students are typically asked to compare and contrast osmosis and diffusion. The answer to the…
Q: what do osmosis,diffusion,filtration and the movemenet of ions away from like charge all have in…
A: The cell membrane is semi-permeable and envelops the cellular content. it regulates the entry and…
Q: Why are membranes more permeable to nonpolar molecules than to most polar and ionized molecules?
A: The cells consist of cellular organelles that are involved in various functions. The cellular…
Q: What do osmosis, diffusion, filtration, and the movement of ions away from like charge all have in…
A: A particle is a charged iota or atom. It is charged on the grounds that the quantity of electrons…
Q: Which type(s) of vesicular transport is for nonspecific engulfment of fluid and materials from…
A: Receptor-mediated endocytosis: It is a process through which a cell absorbs metabolites,…
Q: Which of the following presents the correct sequence of steps involved in the short-distance…
A: Introduction: Transport of molecules (solutes like protein electrolytes and water) across the plasma…
Q: Piston C Piston D Solution A Solution B Semipermeable membrane Above is a crude cartoon of a…
A: Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane…
Q: An animal cell with an internal osmolarity of 0.32 M (total concentration of all the solutes in…
A: Osmosis Osmosis is a physical process of movement of solvent molecules across a plasma membrane…
The intracellular salt content of a red blood cell is about 150 mM. The cell is put in a 500 mM salt beaker. (a) Describe what will happen to the cell in terms of osmosis if the cell membrane is permeable to water but not to ions. (b) Which direction would solutes diff use if the membrane was permeable to ions: into or out of the cell?
Step by step
Solved in 2 steps
- Assume that a membrane permeable to Na+ but not to Cl- separates two solutions. The concentration of sodium chloride on side 1 is higher than on side 2. Which of the following ionic movements would occur? a. Na+ would move until its concentration gradient is dissipated (until the concentration of Na+ on side 2 is the same as the concentration of Na+ on side 1). b. Cl- would move down its concentration gradient from side 1 to side 2. c. A membrane potential, negative on side 1, would develop. d. A membrane potential, positive on side 1, would develop. e. None of the preceding is correct.A red blood cell has an internal salt concentration of ∼150 mM. The cell is placed in a beaker of 500 mM salt. Solve, (a) Assuming the cell membrane is permeable to water but not to ions, describe what will happen to the cell in terms of osmosis. (b) If the membrane were permeable to ions, in which direction would solutes diff use: into or out of the cell?In an investigation of osmosis, apple cores were submerged in different molarity solutions to determine the unknown osmolarity of the apple. To determine the molarity five uniform apple cores were massed before submerging them in different molarity solutions. After 24 hours the apple cores were massed again. Then the percent change in mass was determined for the five uniform apple cores in each molarity solution. (b) Identify the osmolarity of the apple.
- In an investigation of osmosis, apple cores were submerged in different molarity solutions to determine the unknown osmolarity of the apple. To determine the molarity five uniform apple cores were massed before submerging them in different molarity solutions. After 24 hours the apple cores were massed again. Then the percent change in mass was determined for the five uniform apple cores in each molarity solution. (c) Describe the environmental conditions taking place in each of the six solutions with the apples refer to picture for tableA red blood cell with an intracellular fluid (ICF) concentration of 280 mmol/L, is placed into an environment were the concentration of the extracellular fluid (ECF) is 305 mmol/L. As a result, water will move across the cell/plasma membrane. a) Name the process by which water moves b) Describe the overall direction of movement of the water. Answer choices: (i) From outside the cell to inside the cell (ii) From inside the cell to outside the cell, or (iii) Equally, into and out of the cell iii Explain your reasoning for your answer to part (c). 1In your answer you must describe the environment on both sides of the membrane, and use 3 of the following 4 terms correctly; hypertonic, hypotonic, lower solute concentration, higher solute concentrationn (2pts -Correct use of biological terminology, and correct spelling is essential. Edit View Insert Format Tools Table 12pt v Paragraph BIUA ...A blood cell with a 2% internal solute concentration is placed in a solution that has a 0.2% solute concentration. The solute is impermeable to the plasma membrane. How would you classify the solution compared to the cell – hypotonic, hypertonic or isotonic? Why? (2 pts.) B) Will the solutes move across the membrane? Why or why not? C) What type of transport would occur in this situation – diffusion, facilitated diffusion, osmosis, active transport or bulk transport. Explain. D) What would happen if the cell began to produce a new membrane protein that allowed the solutes to freely move in across the membrane? ould this change your answer to Part C? Explain.
- If you made a hematocrit in two tubes. Tube A is made of 0.60M NaCl, and Tube B is made of 1.00M of NaCl, describe how the cell would respond in these solutions? Which would have a higher rate of osmosis? If the cell is permeable to NaCl, which would have a higher rate of diffusion?In the experiment showing osmosis through a semipermeable membrane, 3 corn syrup mixtures are used. If equal volumes of two solutions (10% corn syrup and 30% corn syrup) were placed in two beakers that were separated by a semipermeable membrane, permeable only to water, and let sit for 1 hour, what would be the expected concentration/s of the two solutions at the end of the time period? Explain using solute concentration, water concentration etc.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
- Soft contact lenses are made from hydrogels, which make them soft and flexible. It is important to clean them daily using a sterile, isotonic cleaning solution. The concentration of solutes in the cleaning solution is the same as the concentration of the hydrogel in the contact lens. What would happen if instead of an isotonic cleaning solution, soft contact lenses are cleaned with water? (A) The soft contact lenses will shrink because it will remove too much water by osmosis. B The soft contact lenses will shrink because too much water is absorbed by osmosis. The soft contact lenses will swell and change shape because too much water is absorbed by osmosis. The soft contact lenses will swell and change shape because too much water is removed by osmosis.Please answer.... a) State which series depcit tubes that were placed in isotonic, hypertonic, and hypotonic environments. b) In the above graph, which tubes appear to show internal turgor pressure counteracting osmosis? Explain how you can tell this by looking at the graph.Define osmosis and describe the effects of placing red blood cells in the following solutions 1, Hypertonic salline solution (3%Nacl) 2, Hypertonic salline solution (0.45%Nacl) 3,Isotonic/normal salline (0.9%Nacl)