PhysioEx 9.1: Laboratory Simulations In Physiology , 1st Edition Test Bank

Name: PhysioEx 9.1: Laboratory Simulations In Physiology , 1st Edition Test Bank
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ExamName___________________________________MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1)Increasing the pressure above the beaker is analogous to _______.1)A)a decrease in blood volumeB)an increase in blood pressureC)an increase in heart rateD)an increase in solutes found in the bloodAnswer:BExplanation:A)B)C)D)2)Which of the following would decrease the rate of facilitated diffusion?2)A)increasing the amount of ATP availableB)decreasing the amount of ATP availableC)decreasing the number of carrier proteinsD)increasing the number of carrier proteinsAnswer:CExplanation:A)B)C)D)3)Which of the following would result in NO change in osmotic pressure?3)A)Water is moving with its concentration gradient.B)The solutes can diffuse through the pores and the concentration of solutes is the same.C)The concentration of solutes is the same on both sides of the membrane.D)The solutes can diffuse through the pores.Answer:BExplanation:A)B)C)D)4)Which of the following requires a membrane-bound carrier for transport?4)A)simple diffusionB)filtrationC)osmosisD)facilitated diffusionAnswer:DExplanation:A)B)C)D)1

5)Which of the following would increase the rate of facilitated diffusion?5)A)increasing the amount of ATP availableB)decreasing the number of carrier proteinsC)increasing the steepness of the concentration gradientD)decreasing the concentration of solutesAnswer:CExplanation:A)B)C)D)6)Which of the following is NOT a passive process?6)A)filtrationB)vesicular transportC)facilitated diffusionD)osmosisAnswer:BExplanation:A)B)C)D)7)Osmotic pressure is measured in units of _______.7)A)ml/minB)mM/secC)mm HgD)mM/minAnswer:CExplanation:A)B)C)D)8)Which of the following describes the movement of ions by the sodium-potassium pump?8)A)Potassium is moved into the cell.B)Potassium is moved out of the cell and sodium is moved into the cell.C)Potassium is moved out of the cell.D)Sodium is moved into the cell.Answer:AExplanation:A)B)C)D)9)What happens to facilitated diffusion when the protein carriers become saturated?9)A)The protein carriers fall apart.B)The maximum rate of transport will occur.C)The transport rate will increase.D)ATP will be utilized for transport.Answer:BExplanation:A)B)C)D)2

10)In the kidneys, which solutes normally pass through the capillaries?10)A)proteins and glucoseB)proteinsC)red blood cellsD)glucoseE)white blood cellsAnswer:DExplanation:A)B)C)D)E)11)With the experimental conditions set at the 200 MWCO membrane in place, 10 mM glucose and 9mM albumin, which of the following is true?11)A)The net movement of water is away from the albumin.B)The net movement of water is toward the albumin.C)Albumin and glucose diffuse through the membrane.D)The net movement of water is toward the glucose.Answer:BExplanation:A)B)C)D)12)Which of the following describes the concentration of ions when the cell is at rest?12)A)The concentration of potassium and sodium is equal inside and outside the cell.B)The concentration of potassium is higher inside the cell.C)The concentration of potassium is higher outside the cell.D)The concentration of sodium is higher inside the cell.Answer:BExplanation:A)B)C)D)13)Coupled transporters that move solutes in the same direction are called _______.13)A)antiportersB)isoportersC)symportersD)uniportersAnswer:CExplanation:A)B)C)D)3

14)Simple diffusion and facilitated diffusion both _______.14)A)move solutes against their concentration gradientB)require ATPC)utilize a membrane-embedded carrier proteinD)move solutes with their concentration gradientAnswer:DExplanation:A)B)C)D)15)If a membrane is impermeable to solutes, which of the following is true?15)A)Water will move toward the more concentrated solutes.B)Water will move away from the concentrated solutes.C)Osmosis will not occur.D)Water and solutes will move until equilibrium is reached.Answer:AExplanation:A)B)C)D)16)Which of the following statements about facilitated diffusion is FALSE?16)A)The movement of the solute is passive.B)The movement requires a carrier protein.C)The movement of the solute is with its concentration gradient.D)The movement of a given solute usually occurs in both directions (into and out of the cell).Answer:DExplanation:A)B)C)D)17)Which of the following was NOT observed during this activity?17)A)Some solutes were too large to pass through the membrane.B)A residue of solutes remained on the membrane after filtration.C)Increasing the rate of filtration increased the concentration of solutes in the filtrate.D)The 200 MWCO membrane was the largest pore size used.Answer:CExplanation:A)B)C)D)4

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PhysioEx 9.1: Laboratory Simulations In Physiology , 1st Edition Test Bank

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