The solutions in the two arms of the U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is filled with a solution of 2.0 M sucrose and 1.0 M glucose. Side B is filled with 1.0 M sucrose and 2.0 M glucose. a. Initially, the solution in side A, with respect to that in side B, is what? b. After the system reaches equilibrium, what changes are observed?

The solutions in the two arms of the U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is filled with a solution of 2.0 M sucrose and 1.0 M glucose. Side B is filled with 1.0 M sucrose and 2.0 M glucose. a. Initially, the solution in side A, with respect to that in side B, is what? b. After the system reaches equilibrium, what changes are observed?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter5: Membranes And Transport

Section: Chapter Questions

Problem 2TYK: Which of the following statements is false? Proteins in the plasma membrane can: a. transport ions....

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8. If two solutions with concentrations of 0.2 M sugar and 0.4 M sugar respectively are separated by a semipermeable membrane, during osmosis, what is the direction of the net flow? a. Sugar molecules from the concentrated to the dilute solution b. Sugar molecules from the dilute to the concentrated solution c. Water molecules from the concentrated to the dilute solution d. Water molecules from the dilute to the concentrated solution
Which of the following statements about proteins is correct? a. Proteins are transported to the rough ER for use within the cell. b. Lipids and carbohydrates are added to proteins by the Golgi complex. c. Proteins are transported directly into the cytosol for secretion from the cell. d. Proteins that are to be stored by the cell are moved to the rough ER. e. Proteins are synthesized in vesicles.
Which of the following statements is false? Proteins in the plasma membrane can: a. transport ions. b. transport chloride ions when there are two mutant copies of the cystic fibrosis transmembrane conductance regulator gene. c. recognize self versus foreign molecules. d. allow adhesion between the same tissue cells or cells of different tissues. e. combine with lipids or sugars to form complex macromolecules.
9)Two solutions are separated by a selectively permeable membrane that is not permeable to glucose. On one side of the membrane, solution A contains 10 percent glucose and on the other side, solution B contains 25 percent glucose. Which of the following is true? Select one: a. Solution A is hypertonic. b. The solutions are isotonic. c. Water would move from solution A to solution B. d. Glucose would move from solution B to solution A.
4. To demonstrate the separation between the onion cell wall and plasma membrane, carefully lift the cover slip and add a few grains of salt. Return the cover slip and describe what happens.
7. Give an example of a situation where BIP would be expected to bind your made up protein in the cell 8. Give an example of a protein transport system that moves folded proteins across membranes 9. How does the cell achieve unidirectional transport of proteins into the nucleus? BASE ON PROTEIN
1. Which of the following statements is true? Mitochondria likely originated from an aerobic bacterium engulfed by a pre eukaryotic cell, the signal sequence that directs proteins into mitochondria matrix is a hydrophilic helix; proteins import into mitochondria cross the membrane in folded state; no energy is required for proteins import into mitochondria 2. Which of the following statements about vesicular transport is true? Clathrin is the only coat proteins used in vesicle formation; motor proteins are not needed for vesicular transport; the orientation of transmembrane proteins is not preserved during vesicular transport; cargo proteins do not cross membrane during vesicular transport 3. Which of the following statements regarding the nucleus is true? The nucleus is surrounded by a single layer of membrane, the nuclear envelope is not connected with the ER membrane, proteins of any size can freely diffuse through the nuclear pore complexes
7) Which is the best definition of osmosis?a) movement of molecules from an area of their higher concentration to an area of their lower concentrationb) movement of water across a membrane from an area of high concentration to a lower concentration.c) movement of molecules from an area of their lower concentration to an area of their higher concentration.d) movement of water across a semipermeable membrane from an area of low concentration to a higher water concentration with the use of ATP.e) movement of water across a semipermeable membrane from an area of high concentration to a lower concentration.8) Transcriptional factors are required for transcription in all the following organisms except: a) Protozoa b) Bacteria c) Archaea d) Eukarya e) b & c.9) The composition of the flagellar apparatus is more complex in ___ as compared to Prokaryotes: a) Protozoa b) Bacteria c) Archaea d) Mycota e) a & d
1. In a passive process (passive transport) across a cell's plasma membrane, ______ differences drive the movement; while in an active process, the cell provides ______ to power the transport process. A. concentration, ATP B. ATP, concentration C. differential permeability , driving force D. driving force, differential permeability
6. A researcher isolates and collects a particular cell membrane protein and injects a pure solution of these proteins into a laboratory animal. The laboratory animal most likely ______. A. incorporates the proteins into its own cell membranes B. digests the proteins as a food source C. produces antibodies that bind specifically to that membrane protein D. goes into shock and die
1. Which is the membranous part that transports substance and serves as a site of lipid synthesis? Is it a smooth ER or a rough ER? 2. What is the energy storage of the cell? 3. What are the five parts of a cell that is present in both plant and animal cells? 4. What are the four parts of a cell that serves as the transport system of a cell?
5) What term is used to describe when two solutions have reached a balanced state?IsotonicHypertonicHypotonicTonicity 6) Blood is what kind of solution? Isotonic Hypotonic Hypertonic None of the above