Concentration of Water and Solutes in Four Adjacent Cells 1 Water: low Solutes: low Water: high Solutes: low Ocell 1 Ocell 2 cell 3 C Refer to the illustration above. Which cell is most likely to lose both water molecules and solute molecules as the system approaches equilibrium? Ocell 4 21 2 Water: low Solutes: high 4 Water: high Solutes: high

TONICITY DRAGTHE WORDS INTO THE BLANK SPACES BELOW TO ACCURATELY COMPLETE THE PARAGRAPH decreases Hypertonic increases key: Hypotonic solute particle • cell membrane cell wall solute in all solutions, the solvent is H20 solvent A В Solution B is to solution A. This is because solution B has a greater concentration of in it than does solution A. Solution C has no solutes dissolved in it, therefore it is to both Solutions A and B. As the relative concentration of solutes in two solutions increases, of necessity the relative concentration of water in the same two solutions Solution A has a lower concentration of than does Solution C; Solution A is also hypertonic to Sol tion C.

Under which circumstance is the Goldman equation equivalent to the Nernst equation? O when the cell membrane is only permeable to 1 ion O when the concentrations of the ions are equal outside and inside of the cell when the cell membrane is equally permeable to all ions O when there is no charge on the membrane

The data below were collected during a passive membrane transport experiment where two solutes (A and B) were evaluated relative to their separate transport proteins. Transport rate (mmol/min) 0.3 Solute A Solute B Transport rate [S] mM [S] mM (mmol/min) 2.0 2.0 0.5 4.0 0.7 4.0 1.0 6.0 1.0 6.0 1.4 8.0 1.3 8.0 1.6 10.0 1.5 10.0 1.7 12.0 1.7 12.0 1.8 14.0 1.9 14.0 1.9 16.0 2.0 16.0 2.0 18.0 2.0 18.0 2.0 4. Identify the Km for Solute B. Your answer must include the number with one decimal (similar to the numbers in the table) followed by a space and then the units 5. Which transport protein is present in the highest concentration? 6. Which ligand has the greatest affinity for its protein?

When two chambers are separated by a membrane permeable to water but not solute, if water is free to move in either direction without limitation or pressure, then water will move until the concentration of solute on both sides of the chamber is equal move until there is no water on the dilute side move until there is no water on the concentrated side move until the concentration of water on both sides of the chamber is equal

Water molecules tend to diffuse in response to their own concentration gradient. How can water be more or less concentrated?

compared to bag of 0.9% NaCl are dH20,  0.9% solute,  5% solute,      isotonic, hypertonic or hypotonic

The beaker is divided into two compartments (C and D) that has equal volumes of solution separated by an artificial membrane that has a pore size of 23 Å (Angstrom). Explain the movement of solute after eight hours if comparment C has 17 % sucrose while the compartment D has 2 % sucrose (diameter of sucrose molecule = 9 Å (Angstrom))

Which of the following is false concerning osmosis?   Question options:   The net movement of water molecules from a region of lower water potential to a region of higher water potential across a semipermeable membrane.   Individual molecules of water are in constant flux into and out of cells.   The movement of water molecules from a region of higher water potential to a region of lower water potential across a semipermeable membrane.   The effects of osmosis vary between cell types.

How 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 ոգու