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Transcript
Section 3.5: Active Transport, Endocytosis and Exocytosis Quiz Name___________________________Class___________________ Date__________ CLEARLY circle the best answer for each question, or write in the correct answer in the blank provided. 10 points each! 1. a. b. c. d. Unlike passive transport, active transport requires concentration gradients. diffusion. energy from the cell. vesicles. 2. a. b. c. d. Which process uses proteins to move molecules against a concentration gradient? active transport passive transport endocytosis phagocytosis 3. a. b. c. d. Cells use active transport proteins to obtain molecules they need. break down molecules. engulf large particles. detect the charge of molecules. 4. a. b. c. d. A membrane-bound sac used to transport substances into and out of cells is a pump. macrophage. lysosome. vesicle. 5. The process in which a cell membrane engulfs large particles through vesicles is called ________________________. 6. The process in which a cell membrane expels substances out of a cell through vesicles is called ___________________. 7. a. b. c. d. Which process is used to release insulin from pancreatic cells into the bloodstream? exocytosis endocytosis active transport passive transport 8. This word literally means “cell eating.” _______________________________. Review from 3.4: 9. The difference in the concentration of dissolved particles from one location to another is called a. concentration gradient b. concentrated solution c. saline solution d. dynamic gradient 10. Diffusion results from a. the energy produced by the cell. b. the natural motion of particles c. transport proteins through the cell membrane. d. none of the above