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Unformatted text preview: NPB 101 – Sample Final Exam Neuro/Endo/Repro Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Select the incorrect statement regarding the plasma membrane. a. selectively controls movement of molecules between the ECF and the ICF. b. is the barrier that surrounds the blood vessels and separates the blood plasma from the interstitial fluid. c. contains proteins that provide membrane functions. d. has cholesterol to maintain rigidity. e. serves as a mechanical barrier to hold in the contents of the cell. ____ 2. The concentration gradient for Na + a. favors its movement into the cell at resting potential. b. favors its movement out of the cell at resting potential. c. is maintained by the Na +-K + pump. d. Both (a) and (c) above. e. Both (b) and (c) above. ____ 3. Which of the following is responsible for the falling phase of an action potential? a. Na +-K + pump restoring the ions to their original locations b. ATP-ase destroying the energy supply that was maintaining the action potential at its peak. c. opening of Na + gates d. Greatly increased permeability to Na + e. None of these answers. ____ 4. The universal energy currency in cells is a. glucose. b. insulin. c. glycogen. d. myosin. e. ATP. ____ 5. Select the correct statement about diffusion. a. the chemical gradient of a substance does not affect its initial rate of net diffusion. b. it depends on random (thermal) motion of molecules. c. during diffusion, there is a net movement of molecules from an area of lower concentration to an area higher concentration. d. its rate increases as the temperature decreases. e. it involves active forces. ____ 6. Extrusion of materials to the exterior of the cell through the plasma membrane is called a. pinocytosis b. endocytosis c. exocytosis d. phagocytosis e. All of these answers. ____ 7. The two systems concerned with the control of body functioning are a. endocrine and lymphatic. b. nervous and respiratory. c. nervous and endocrine. d. circulatory and endocrine. e. endocrine and respiratory. ____ 8. The blind spot a. is the point on the retina at which the optic nerve leaves and blood vessels pass through. b. contains no rods or cones....
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This note was uploaded on 01/30/2012 for the course BIS 101/102 taught by Professor Etzler during the Spring '10 term at UC Davis.
- Spring '10