13.Write LEFT or RIGHT to indicate the direction of the movement of water in the following cells Pure water 10% sucrose 15% glucose (85% water) 5% glucose (95% water) 10% fructose 20% fructose (95% water) ☐ 13.1. 13.2. 13.3. 13.4. What type/s of membrane transport is/are shown in the processes above? 13.5. What structure or characteristic gives the biological membrane selective permeability?

13.Write LEFT or RIGHT to indicate the direction of the movement of water in the following cells Pure water 10% sucrose 15% glucose (85% water) 5% glucose (95% water) 10% fructose 20% fructose (95% water) ☐ 13.1. 13.2. 13.3. 13.4. What type/s of membrane transport is/are shown in the processes above? 13.5. What structure or characteristic gives the biological membrane selective permeability?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter5: Structure And Function Of Plasma Membranes

Section: Chapter Questions

Problem 9RQ: The principal force driving movement in diffusion is the. temperature particle size concentration...

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A scientist compares the plasma membrane composition of an animal from the Mediterranean coast with one from the Mojave Desert. Which hypothesis is most likely to be correct? The cells from the Mediterranean coast animal will have more fluid plasma membranes The cells from the Mojave Desert animal will have a higher cholesterol concentration in the plasma membranes The cells’ plasma membranes will be indistinguishable The cells from the Mediterranean coast animal will have a higher glycoprotein content, while the cells from the Mojave Desert animal will have a higher lipoprotein content.
A driving ion moving through a membrane channel in one direction gives energy to actively transport another molecule in the opposite direction. What is this process called? a. facilitated diffusion b. antiport transport c. symport transport d. primary active transport pump e. contransport
What is the primary function of carbohydrates attached to the exterior of cell membranes? identification of the cell flexibility of the membrane strengthening the membrane channels through membrane
Which of the following methods of transport is being used to transfer the substance into the cell in the accompanying graph? a. diffusion down a concentration gradient b. osmosis c. facilitated diffusion d. active transport e. vesicular transport f. It is impossible to tell with the information provided.
The principal force driving movement in diffusion is the. temperature particle size concentration gradient membrane surface area
Using the principle of diffusion, a dialysis machine removes waste solutes from a patients blood. Imagine blood runs through a cylinder wherein diffusion can occur across an artificial selectively permeable membrane to a saline solution on the other side. Which of the following statements is correct? a. Solutes move from lower to higher concentraction. b. The concentration gradient is lower in the patients blood than in the saline solution wash. c. The solutes are transported through a symport in the blood cell membrane. d. The saline solution has a lower concentration gradient of solute than the blood. e. The waste solutes are actively transported from the blood.
7. Which of the following membrane transport proteins would you expect to be the most selective (although not the most rapid)? the bicarbonate ion channel the glucose carrier protein the potassium ion channel the chloride ion channel the sodium ion channel
41. A TRANSPORT MECHANISM ACROSS A MEMBRANE WHERE THE MOVEMENT OF THE SOLUTION IS FROM HIGHER TO LOWER CONCENTRATION UNTIL SUCH TIME THAT EQUILIBRIUM IS ESTABLISHED?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 42. BIOMOLECULES ARE HYDROLYZED FIRST INTO THEIR SIMPLEST FORM BEFORE THEY CAN BE ABSORBED BY THE TISSUES. GLUCOSE ABSORPTION IS THROUGH WHICH OF THE FOLLOWING?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 43. A TRANSPORT MECHANISM THROUGH MEMBRANE WHICH NEEDS ATP?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 44. TRANSPORT MECHANISM ACROSS MEMBRANE OF GASES?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 45. A TRANSPORT MECHANISM IN WHICH SMALLER PARTICLES PASSES THROUGH MEMBRANE BUT NOT THE BIG ONE?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS
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
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.
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
8. Which of the following ion transport functions must be carried out by a pump? a. transport of Na+ from the extracellular space to the cytosol b. transport of glucose from the extracellular space to the cytosol c. transport of K+ from the cytosol to the extracellular space d. transport of Na+ from the cytosol to the nucleus e. transport of Na+ from the cytosol to the extracellular space.