Skip to content
Exam Guides

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

Achieve top scores with PhysioEx 9.1: Laboratory Simulations In Physiology , 1st Edition Test Bank, a well-crafted guide filled with must-know information, examples, and revision techniques.

Preview 16 of 134 pages

See the first 16 pages exactly as they appear in the document.

  1. Page 1
    Read page 1 as text

    Exam Name___________________________________ 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 volume B) an increase in blood pressure C) an increase in heart rate D) an increase in solutes found in the blood Answer: B Explanation: A) B) C) D) 2) Which of the following would decrease the rate of facilitated diffusion? 2) A) increasing the amount of ATP available B) decreasing the amount of ATP available C) decreasing the number of carrier proteins D) increasing the number of carrier proteins Answer: C Explanation: 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: B Explanation: A) B) C) D) 4) Which of the following requires a membrane-bound carrier for transport? 4) A) simple diffusion B) filtration C) osmosis D) facilitated diffusion Answer: D Explanation: A) B) C) D) 1

  2. Page 2
  3. Page 3
    Read page 3 as text

    5) Which of the following would increase the rate of facilitated diffusion? 5) A) increasing the amount of ATP available B) decreasing the number of carrier proteins C) increasing the steepness of the concentration gradient D) decreasing the concentration of solutes Answer: C Explanation: A) B) C) D) 6) Which of the following is NOT a passive process? 6) A) filtration B) vesicular transport C) facilitated diffusion D) osmosis Answer: B Explanation: A) B) C) D) 7) Osmotic pressure is measured in units of _______. 7) A) ml/min B) mM/sec C) mm Hg D) mM/min Answer: C Explanation: 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: A Explanation: 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: B Explanation: A) B) C) D) 2

  4. Page 4
    Read page 4 as text

    10) In the kidneys, which solutes normally pass through the capillaries? 10) A) proteins and glucose B) proteins C) red blood cells D) glucose E) white blood cells Answer: D Explanation: A) B) C) D) E) 11) With the experimental conditions set at the 200 MWCO membrane in place, 10 mM glucose and 9 mM 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: B Explanation: 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: B Explanation: A) B) C) D) 13) Coupled transporters that move solutes in the same direction are called _______. 13) A) antiporters B) isoporters C) symporters D) uniporters Answer: C Explanation: A) B) C) D) 3

  5. Page 5
    Read page 5 as text

    14) Simple diffusion and facilitated diffusion both _______. 14) A) move solutes against their concentration gradient B) require ATP C) utilize a membrane-embedded carrier protein D) move solutes with their concentration gradient Answer: D Explanation: 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: A Explanation: 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: D Explanation: 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: C Explanation: A) B) C) D) 4

  6. Page 6
    Read page 6 as text

    18) Which of the following resulted in an increase in the filtration rate? 18) A) increasing the pressure above the beaker B) increasing the concentration of the solutes C) increasing the pore size D) 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 are correct. Answer: D Explanation: 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: C Explanation: A) B) C) D) 20) Which of the following increased the rate of sodium-potassium transport? 20) A) increasing the number of membrane pumps B) decreasing the amount of ATP C) adding glucose to the right beaker D) increasing the amount of ATP Answer: A Explanation: A) B) C) D) 21) Which solute did NOT appear in the filtrate using the 200 MWCO membrane? 21) A) glucose B) sodium chloride C) urea D) charcoal E) Glucose, charcoal, sodium chloride and urea appeared in the filtrate. Answer: D Explanation: A) B) C) D) E) 5

  7. Page 7
    Read page 7 as text

    22) What is the type of transport supplied by the glucose carriers in the activity? 22) A) facilitated diffusion B) active transport C) coupled transport D) endocytosis E) exocytosis Answer: A Explanation: 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: D Explanation: A) B) C) D) 24) The presence or absence of a solute in the filtrate depends on _______. 24) A) the MWCO of the membrane B) the pore size of the membrane C) the size of the solute D) the molecular weight of the solute E) the molecular weight and size of the solute as well as the MWCO and pore size of the membrane Answer: E Explanation: A) B) C) D) E) 25) Which of the following does NOT describe the plasma membrane? 25) A) selectively permeable B) differentially permeable C) semipermeable D) impermeable Answer: D Explanation: A) B) C) D) 6

  8. Page 8
    Read page 8 as text

    26) Which of the following is required for filtration? 26) A) ATP B) osmotic pressure C) a hydrostatic pressure gradient D) a membrane-embedded protein carrier E) Both a membrane-embedded protein carrier and a hydrostatic pressure gradient are required. Answer: C Explanation: A) B) C) D) E) 27) Hypertonic refers to _______. 27) A) the concentration of solutes inside a cell B) the concentration of solutes that a cell is bathed in C) a concentration of solutes that is less than the solutes inside the cell D) a solution that will cause a cell to swell Answer: B Explanation: A) B) C) D) 28) Which of the following is the driving force for the sodium-potassium pump? 28) A) ATP hydrolysis B) a hydrostatic pressure gradient C) a concentration gradient D) an electrical gradient Answer: A Explanation: A) B) C) D) 29) A cell is immersed in a beaker of solution. The cell membrane is permeable to water but impermeable 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: D Explanation: A) B) C) D) 7

  9. Page 9
    Read page 9 as text

    30) In this activity, the solutes were transported through the dialysis membrane by _______. 30) A) active transport B) facilitated diffusion C) osmosis D) simple diffusion Answer: D Explanation: A) B) C) D) 31) When the solutes are evenly distributed throughout a solution, we say the solution has reached _______. 31) A) equilibrium B) velocity C) permeability D) diffusion Answer: A Explanation: A) B) C) D) 32) The sodium - potassium pump can transport _______. 32) A) only if sodium and potassium are available B) potassium even if sodium is not available C) sodium even if potassium is not available D) sodium even if potassium is not available and potassium even if sodium is not available Answer: A Explanation: A) B) C) D) 33) Which of the following generated osmotic pressure? 33) A) glucose B) albumin C) sodium chloride D) Sodium chloride, glucose and albumin generated osmotic pressure. Answer: D Explanation: 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 solute B) the size of the solute C) the membrane pore size D) the concentration of the solute Answer: C Explanation: A) B) C) D) 8

  10. Page 10
    Read page 10 as text

    35) Through which membrane(s) would sodium chloride diffuse? 35) A) 100 MWCO and 200 MWCO B) 200 MWCO only C) 50 MWCO, 100 MWCO, and 200 MWCO D) 20 MWCO, 50 MWCO, 100 MWCO, and 200 MWCO Answer: C Explanation: A) B) C) D) 36) Which of the following solutes would move the fastest? 36) A) urea B) glucose C) albumin D) sodium Answer: D Explanation: 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: D Explanation: 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: C Explanation: A) B) C) D) E) 9

  11. Page 11
    Read page 11 as text

    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: C Explanation: A) B) C) D) 10

  12. Page 12
    Read page 12 as text

    Answer Key Testname: EX1 1) B 2) C 3) B 4) D 5) C 6) B 7) C 8) A 9) B 10) D 11) B 12) B 13) C 14) D 15) A 16) D 17) C 18) D 19) C 20) A 21) D 22) A 23) D 24) E 25) D 26) C 27) B 28) A 29) D 30) D 31) A 32) A 33) D 34) C 35) C 36) D 37) D 38) C 39) C 11

  13. Page 13
    Read page 13 as text

    Exam Name___________________________________ 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 length B) the shortest starting length C) an intermediate starting length D) The length of the muscle did not affect the amount of total force produced. Answer: C Explanation: A) B) C) D) 2) Which of the following terms are NOT used interchangeably? 2) A) in vivo — in the body B) muscle cell — muscle fiber C) motor unit — motor neuron D) muscle tension — muscle force Answer: C Explanation: 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 period B) the length of the relaxation phase C) the number of motor units activated D) the threshold voltage Answer: C Explanation: 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 all B) increased C) decreased D) did not change Answer: A Explanation: A) B) C) D) 1

  14. Page 14
    Read page 14 as text

    5) Which of the following occurs if the load attempted is equal to or greater than the force generated by a muscle? 5) A) Isometric muscle contraction occurs. B) The muscle shortens. C) The muscle lengthens. D) Isotonic muscle contraction occurs. Answer: A Explanation: 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 in between contractions B) clicking the mouse in rapid succession C) allowing the muscle to completely relax in between contractions D) increasing the voltage applied Answer: D Explanation: 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 tetanic tension. Answer: E Explanation: A) B) C) D) E) 8) Treppe is the phenomenon that results in _______. 8) A) a progressive increase in the force generated with repetitive stimulation B) an increase in the stimulation frequency C) maximal force production by a skeletal muscle D) motor unit recruitment Answer: A Explanation: A) B) C) D) 2

  15. Page 15
    Read page 15 as text

    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: C Explanation: 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: C Explanation: 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 load B) isotonic muscle contraction with a force greater than the load C) isometric muscle contraction with a force greater than the load D) either isometric or isotonic muscle contraction with a force greater than the load E) either isotonic muscle contraction with a force greater than the load or a force less than the load Answer: B Explanation: A) B) C) D) E) 12) Increasing the applied voltage in the simulation corresponds to which in vivo event? 12) A) motor neuron recruitment B) motor unit recruitment C) muscle fiber recruitment D) muscle twitch recruitment Answer: B Explanation: A) B) C) D) 3

  16. Page 16
    Read page 16 as text

    13) Which of the following is generated when cross-bridges form between actin and myosin? 13) A) active force and passive force B) active force and ATP C) active force D) ATP E) passive force Answer: C Explanation: 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: C Explanation: A) B) C) D) 15) Which of the following is NOT a phase of a muscle twitch? 15) A) relaxation phase B) contraction phase C) latent period D) shortening phase Answer: D Explanation: 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 results B) full relaxation of the muscle occurs C) muscle twitches overlap D) wave summation results and muscle twitches overlap E) wave summation results Answer: D Explanation: A) B) C) D) E) 4

118 more pages in the full document

Unlock it once and it stays in your library, ready to chat with or turn into flashcards.

Unlock the full document

More Anatomy and Physiology study materials

See all

Study this document with CramX

Once it is in your library, every tool can work from it.