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

Preview (16 of 134 Pages)

100%

Purchase to unlock

Loading page image...

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

Loading page image...

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

Loading page image...

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

Loading page image...

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

Loading page image...

18)Which of the following resulted in an increase in the filtration rate?18)A)increasing the pressure above the beakerB)increasing the concentration of the solutesC)increasing the pore sizeD)Both increasing the pore size and increasing the pressure above the beaker are correct.E)Both increasing the pressure above the beaker and increasing the concentration of solutes arecorrect.Answer:DExplanation:A)B)C)D)E)19)Which of the following statements about osmosis is FALSE?19)A)It is a type of diffusion.B)It is passive.C)Water moves toward the solution with the lowest concentration of solutes.D)It is specific for the movement of water.Answer:CExplanation:A)B)C)D)20)Which of the following increased the rate of sodium-potassium transport?20)A)increasing the number of membrane pumpsB)decreasing the amount of ATPC)adding glucose to the right beakerD)increasing the amount of ATPAnswer:AExplanation:A)B)C)D)21)Which solute did NOT appear in the filtrate using the 200 MWCO membrane?21)A)glucoseB)sodium chlorideC)ureaD)charcoalE)Glucose, charcoal, sodium chloride and urea appeared in the filtrate.Answer:DExplanation:A)B)C)D)E)5

Loading page image...

22)What is the type of transport supplied by the glucose carriers in the activity?22)A)facilitated diffusionB)active transportC)coupled transportD)endocytosisE)exocytosisAnswer:AExplanation:A)B)C)D)E)23)Which of the following is NOT a reason why a solute would require facilitated diffusion?23)A)The solute is lipid insoluble.B)The solute is too large to pass on its own.C)The solute is hydrophilic.D)The solute directly requires ATP for its transport.Answer:DExplanation:A)B)C)D)24)The presence or absence of a solute in the filtrate depends on _______.24)A)the MWCO of the membraneB)the pore size of the membraneC)the size of the soluteD)the molecular weight of the soluteE)the molecular weight and size of the solute as well as the MWCO and pore size of themembraneAnswer:EExplanation:A)B)C)D)E)25)Which of the following does NOT describe the plasma membrane?25)A)selectively permeableB)differentially permeableC)semipermeableD)impermeableAnswer:DExplanation:A)B)C)D)6

Loading page image...

26)Which of the following is required for filtration?26)A)ATPB)osmotic pressureC)a hydrostatic pressure gradientD)a membrane-embedded protein carrierE)Both a membrane-embedded protein carrier and a hydrostatic pressure gradient are required.Answer:CExplanation:A)B)C)D)E)27)Hypertonicrefers to _______.27)A)the concentration of solutes inside a cellB)the concentration of solutes that a cell is bathed inC)a concentration of solutes that is less than the solutes inside the cellD)a solution that will cause a cell to swellAnswer:BExplanation:A)B)C)D)28)Which of the following is the driving force for the sodium-potassium pump?28)A)ATP hydrolysisB)a hydrostatic pressure gradientC)a concentration gradientD)an electrical gradientAnswer:AExplanation:A)B)C)D)29)A cell is immersed in a beaker of solution. The cell membrane is permeable to water butimpermeable to solutes. If the intracellular concentration is 10 mM and the solution is 20 mM,which of the following is true?29)A)There is no net change in the movement of water into the cell.B)The solution is hypotonic.C)The net movement of water is into the cell.D)The cell will shrink.Answer:DExplanation:A)B)C)D)7

Loading page image...

30)In this activity, the solutes were transported through the dialysis membrane by _______.30)A)active transportB)facilitated diffusionC)osmosisD)simple diffusionAnswer:DExplanation:A)B)C)D)31)When the solutes are evenly distributed throughout a solution, we say the solution has reached_______.31)A)equilibriumB)velocityC)permeabilityD)diffusionAnswer:AExplanation:A)B)C)D)32)The sodium-potassium pump can transport _______.32)A)only if sodium and potassium are availableB)potassium even if sodium is not availableC)sodium even if potassium is not availableD)sodium even if potassium is not available and potassium even if sodium is not availableAnswer:AExplanation:A)B)C)D)33)Which of the following generated osmotic pressure?33)A)glucoseB)albuminC)sodium chlorideD)Sodium chloride, glucose and albumin generated osmotic pressure.Answer:DExplanation:A)B)C)D)34)Which of the following does NOT affect the rate of diffusion through a membrane?34)A)the kinetic energy of the soluteB)the size of the soluteC)the membrane pore sizeD)the concentration of the soluteAnswer:CExplanation:A)B)C)D)8

Loading page image...

35)Through which membrane(s) would sodium chloride diffuse?35)A)100 MWCO and 200 MWCOB)200 MWCO onlyC)50 MWCO, 100 MWCO, and 200 MWCOD)20 MWCO, 50 MWCO, 100 MWCO, and 200 MWCOAnswer:CExplanation:A)B)C)D)36)Which of the following solutes would move the fastest?36)A)ureaB)glucoseC)albuminD)sodiumAnswer:DExplanation:A)B)C)D)37)Which of the following statements about carrier proteins is FALSE?37)A)They are found integrated into the plasma membrane.B)They can become saturated if the maximum transport rate is exceeded.C)They might have to change shape slightly to accommodate a solute.D)They assist in simple diffusion.Answer:DExplanation:A)B)C)D)38)Which of the following can be true of both active transport and facilitated diffusion?38)A)A carrier protein is required.B)Lipid-insoluble solutes can be transported.C)Lipid-insoluble solutes can be transported and a carrier protein is required.D)Cellular energy is required for the transport.E)Solutes can move against their concentration gradient.Answer:CExplanation:A)B)C)D)E)9

Loading page image...

39)What happened when sodium chloride was added as a solute in the left beaker?39)A)Sodium was cotransported with the glucose.B)The transport rate of glucose decreased.C)There was no change in the transport rate of glucose.D)The transport rate of glucose increased.Answer:CExplanation:A)B)C)D)10

Loading page image...

Answer KeyTestname: EX11)B2)C3)B4)D5)C6)B7)C8)A9)B10)D11)B12)B13)C14)D15)A16)D17)C18)D19)C20)A21)D22)A23)D24)E25)D26)C27)B28)A29)D30)D31)A32)A33)D34)C35)C36)D37)D38)C39)C11

Loading page image...

ExamName___________________________________MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1)Which starting length of the muscle provided the maximum total force?1)A)the longest starting lengthB)the shortest starting lengthC)an intermediate starting lengthD)The length of the muscle did not affect the amount of total force produced.Answer:CExplanation:A)B)C)D)2)Which of the following terms are NOT used interchangeably?2)A)in vivo — in the bodyB)muscle cell — muscle fiberC)motor unit — motor neuronD)muscle tension — muscle forceAnswer:CExplanation:A)B)C)D)3)Which of the following is proportional to the amount of tension produced by a skeletal muscle?3)A)the length of the latent periodB)the length of the relaxation phaseC)the number of motor units activatedD)the threshold voltageAnswer:CExplanation:A)B)C)D)4)As the weight increased, the distance the weight was lifted _______.4)A)decreased until the weight was not moved at allB)increasedC)decreasedD)did not changeAnswer:AExplanation:A)B)C)D)1

Loading page image...

5)Which of the following occurs if the load attempted is equal to or greater than the force generatedby a muscle?5)A)Isometric muscle contraction occurs.B)The muscle shortens.C)The muscle lengthens.D)Isotonic muscle contraction occurs.Answer:AExplanation:A)B)C)D)6)Which of the following produced an increase in stimulus intensity?6)A)clicking the mouse in rapid succession and allowing the muscle to completely relax inbetween contractionsB)clicking the mouse in rapid successionC)allowing the muscle to completely relax in between contractionsD)increasing the voltage appliedAnswer:DExplanation:A)B)C)D)7)Which of the following is true of the maximum stimulus frequency?7)A)Muscle has reached maximal tetanic tension.B)Muscle force will decrease.C)No greater muscle force can be generated and muscle force will decrease.D)No greater muscle force can be generated.E)No greater muscle force can be generated and the muscle has reached maximal tetanictension.Answer:EExplanation:A)B)C)D)E)8)Treppe is the phenomenon that results in _______.8)A)a progressive increase in the force generated with repetitive stimulationB)an increase in the stimulation frequencyC)maximal force production by a skeletal muscleD)motor unit recruitmentAnswer:AExplanation:A)B)C)D)2

Loading page image...

9)The resting length of the muscle _______.9)A)occurs when peak tension develops.B)describes the length of the muscle during contraction.C)occurs when the muscle is relaxed.D)describes the muscle during stimulation.Answer:CExplanation:A)B)C)D)10)Which of the following occurs during the latent period of muscle contraction?10)A)An action potential is generated.B)Acetylcholine is released at the axon terminal and an action potential is generated.C)Calcium is released from the sarcoplasmic reticulum.D)Acetylcholine is released at the axon terminal.Answer:CExplanation:A)B)C)D)11)For a weight to be lifted, which of the following must occur?11)A)isotonic muscle contraction with a force less than the loadB)isotonic muscle contraction with a force greater than the loadC)isometric muscle contraction with a force greater than the loadD)either isometric or isotonic muscle contraction with a force greater than the loadE)either isotonic muscle contraction with a force greater than the load or a force less than theloadAnswer:BExplanation:A)B)C)D)E)12)Increasing the applied voltage in the simulation corresponds to which in vivo event?12)A)motor neuron recruitmentB)motor unit recruitmentC)muscle fiber recruitmentD)muscle twitch recruitmentAnswer:BExplanation:A)B)C)D)3

Loading page image...

13)Which of the following is generated when cross-bridges form between actin and myosin?13)A)active force and passive forceB)active force and ATPC)active forceD)ATPE)passive forceAnswer:CExplanation:A)B)C)D)E)14)Which of the following occurs during the latent period of isotonic concentric contraction?14)A)Muscle tension is not produced, and the weight will not move.B)Muscle tension is produced, and the weight will move.C)Muscle tension is produced, and the weight will not move.D)Muscle tension is not produced, and the weight will move.Answer:CExplanation:A)B)C)D)15)Which of the following is NOT a phase of a muscle twitch?15)A)relaxation phaseB)contraction phaseC)latent periodD)shortening phaseAnswer:DExplanation:A)B)C)D)16)When the frequency of stimulation of a muscle is great enough, _______.16)A)full relaxation of the muscle occurs and wave summation resultsB)full relaxation of the muscle occursC)muscle twitches overlapD)wave summation results and muscle twitches overlapE)wave summation resultsAnswer:DExplanation:A)B)C)D)E)4

Preview Mode

This document has 134 pages. Sign in to access the full document!

Report

Study Now!

Document Details

Related Documents

Practice Test Anatomy and Physiology – The Urinary

The Human Body An Orientation

Human Anatomy and Physiology-Cardiovascular Questi

Practice test Lec 8 and 9

Lab 7 Bone, Muscle, and Joints Lab

Chapter 6 Lecture Notes

A and P 1 Lab Bone Module 1

Assessment Task 1

Bio Exam 1 Notes

Atrial Fibrillation

Company

Explore

Study Tools