Cellular Transport Review Key

Name Block Cellular Transport Review OSMOSIS: Label the pictures below (isotonic, hypertonic, or hypotonic environments) hypotonic hypertonic isotonic 1. hypertonic tonic means there is a GREATER concentration of solute molecules OUTSIDE the cell than 2. hypo inside tonic means there is a LOWER concentration of solute molecules OUTSIDE the cell than 3. 150 tonic means there is the SAME concentration of solute molecules outside the cell as inside. MULTIPLE CHOICE: Circle the answer(s) that best completes the sentence. 1. The substance that dissolves to make a solution is called the A. diffuser B. solvent Csolute D. concentrate 2. During diffusion molecules tend to move A. up the concentration gradient B down the concentration gradient C. from an area of lower concentration to an area of higher concentration D. in a direction that doesn't depend on concentration 3. When the concentration of a solute is the same throughout a system, the system has reached A. maximum concentration B. homeostasis osmotic pressure D. equilibrium 4. The diffusion of water across a selectively permeable membrane is called A. active transport facilitated diffusion Cosmosis D. phagocytosis 5. Phagocytosis, pinocytosis, and exocytosis are all kinds of transport active B. passive 6. Energy for active transport comes from a cell's A. Golgi complex nucleus Cmitochondria D. lysosomes 7. transport requires energy from ATP to move substances across membranes. Passive B. Active 8. A cell must expend energy to transport substances using A. diffusion B. facilitated diffusion Cosmosis D. Indocytosis 9. White blood cells engulf, digest, and destroy invading bacteria using A. Facilitated diffusion pinocytosis C. phagocytosis D. osmosis 10. The carrier proteins that help in facilitated diffusion are proteins. peripheral B. Antegral 11. All of the following are kinds of passive transport EXCEPT A. diffusion B. facilitated diffusion osmosis D. phagocytosis 12. Endocytosis that brings in small dissolved molecules (solutes) and fluids is called A pinocytosis B. phagocytosis C. facilitated diffusion D. osmosis 13. The pressure exerted by water moving during osmosis is called pressure. A. tonic B. diffusion selectively permeable D. omotic 14. Placing an animal cell in a hypotonic solution will cause water to Amove into the cell B. move out of the cell 15. When molecules move DOWN the concentration gradient it means they are moving from an area of low concentration to an area of higher concentration B. an area of high concentration to an area of lower concentration 16. Gases like Na+ and K+ move across cell membranes using endocytosis B. Jon channels C. diffusion D. facilitated diffusion Completion: Complete the transport terms. 1. Active transport requires_E_NERGY to move molecules across membranes. 2. ATP is the molecule that provides the energy for active transport. 3. Golgi bodies use EXOCYTOSI Sto release molecules outside the cell. 4. DIFFUSIONmoves oxygen and carbon dioxide molecules from a high concentration to a low concentration across membranes, 5. This organelle converts glucose into ATP for active transport is the MITOCHONDRIA 6. Water moves across membranes by OSMOSIS 7. A small membrane sac used to transport substances during exocytosis & endocytosis -VESICLE 8. Kind of endocytosis that takes in small dissolved molecules (solutes) or fluids. PINOCYTOSIS 9. PASSIVE transport does NOT REQUIRE energy. 10. During FACILITATED diffusion carrier proteins grab glucose molecules, change shape, and flip to the other side of the membrane, like a revolving door. 11. A CHANNEL protein is an integral membrane protein that helps move molecules across a cell membrane. 12. A cell placed in an ISOTONIC solution neither swells or shrinks because the concentration of molecules outside the cell is the same as inside.. 13. A solution in which there is a HIGHER concentration of molecules OUTSIDE the cell than inside -HYPERTONIC 14. A CONCENTRATION GRADIENT forms whenever there is a difference in concentration between one place and another. 15.Pinocytosis, phagocytosis, and Na'-K' pumps are all kinds of ACTIVE transport because they use energy to move substances across membranes. 16. A solution in which the concentration of molecules outside the cell is LOWER than inside -HYPOTONIC 17. A SODIUM-POTASSIUM PUM Duses ATP to move three Na ions out of a cell while it moves two Kions in. 3