<p> Cell Membrane and Transport Study Guide</p><p>1. What does hydrophobic mean? ______</p><p>2. What does hydrophilic mean? ______</p><p>3. What part of the membrane is hydrophobic? ______What part is hydrophilic? ______</p><p>4. What structure is found within the cell membrane to help transport substances from one side to the other? ______</p><p>5. What are any channels and/or pumps within the membrane made out of? ______</p><p>6. What are three components of phospholipids ? a. b. c. 7. Can materials like gases, water, and small particles pass through the cell wall? ______</p><p>8. Substances like water and dissolved particles are constantly passing through the cell membrane to maintain a cell’s ______.</p><p>9. ______proteins help regulate what can enter and leave a cell.</p><p>10. The ability of the cell membrane to allow certain molecules to come into the cell while keeping other molecules out is called ______.</p><p>11. Name the two types of transport proteins. ______and ______</p><p>12. What proteins form channels to allow molecules to pass through? ______</p><p>13. What proteins change shape to allow molecules to pass through? ______</p><p>14. The ability of the cell membrane to be flexible and move like the flow of water is called the ______.</p><p>15. Diffusion is the movement of molecules from an area of ______concentration to an area of ______concentration.</p><p>16. Do molecules constantly move and collide with each other or do they never collide? ______</p><p>17. In an isotonic solution, do particles ever stop moving across the membrane? ______</p><p>18. What kind of transport does not require energy? ______</p><p>19.When water moves into a cell, it is in a ______solution. 20.When water leaves a cell, it is in a ______solution.</p><p>21.What happens to the shape of a cell placed in a hypotonic solution? ______</p><p>22.What happens to the shape of a cell placed in a hypertonic solution? ______</p><p>23.What kind of transport requires energy? ______</p><p>24.The diffusion of water is called ______.</p><p>25. Name three types of passive transport. ______, ______, and ______.</p><p>26.When the concentration of dissolved substances is greater inside the cell than outside the cell it is a ______solution.</p><p>27.When the concentration of dissolved substances is greater outside the cell than inside it is a ______solution.</p><p>28.When the concentration of dissolved substances inside a cell equals the concentration outside a cell it is a ______solution.</p><p>29.Passive transport is the movement of particles from an area of ______concentration to an area of ______concentration.</p><p>30.Active transport is the movement of particles from an area of ______concentration to an area of ______concentration.</p><p>31.What are three things that affect the speed of diffusion? ______, ______, and ______.</p><p>32.The ______is an unequal distribution of particles.</p><p>33.Will a cell swell or shrink when placed in pure water? ______in saltwater? ______</p><p>34.Does passive transport occur with or against the concentration gradient? ______</p><p>35.Does active transport occur with or against the concentration gradient? ______</p><p>36.Does facilitated diffusion require transport proteins? ______Does simple diffusion require transport proteins? ______</p><p>37.Name two types of active transport. ______and ______</p><p>38.______is the process where a cell engulfs material.</p><p>39.______is the process where a cell expels or secretes materials.</p><p>40.What are two things that both passive and active transport do? a. b.</p>