Download Cell Transport SG

Name ________________________________________________________________ Cellular Transport Quiz Study Guide Concentration of Solutions Passive Transport Active Transport -­‐What is concentration of -­‐What is it? -­‐When do cells use active solutions? -­‐What are the three types? Explain transport? -­‐Writing concentration of a each. -­‐How does active transport work? solution in a ratio -­‐Why does it happen? -­‐What types of molecules use -­‐Writing concentration of a -­‐Does it require energy? active transport to get into or out solution in a percent -­‐How is the concentration of the cell? -­‐Be able to compare solutions and gradient involved? -­‐Unique shapes of binding sites on determine which is the most -­‐Which types of molecules are transport proteins and molecules concentrated and which is the always allowed across the -­‐Does it require energy? most dilute membrane? Which are not always -­‐Be able to determine the percent allowed? concentration of a solution Key Terms: Key Terms: Key Terms: Concentration Diffusion Active Transport Solute vs. Solvent Osmosis Transport Proteins Concentrated vs. Dilute Facilitated Diffusion ATP Percent Concentration Hypertonic Concentration Gradient Hypotonic Binding Sites Isotonic Endocytosis Concentration Gradient Exocytosis Passive Transport Vesicle Net Movement Transport Proteins Equilibrium Studying Resources: -­‐Sketch Notes on Solutions -­‐Video + Guided Notes on Osmosis and Diffusion -­‐Presentation on Facilitated Diffusion and Active Transport -­‐Worksheets -­‐Practice Questions -­‐This Study Guide -­‐The videos and presentations of all of these topics are available on my website under the “Presentations and Guided Notes” tab. (http://www.brookwood.edu/seventh_grade/science/presentations_and_guided_notes) Practice Questions 1. BIG PICTURE – complete the following sentence. Active Transport and Passive Transport describe: 2. In the image below, identify the following things: Solute, Solvent, Semipermeable Membrane, where the solute is in HIGH concentration, where it is in low concentration, and then draw arrows to show the movement of the solute. 3. Is this showing osmosis or diffusion? How do you know? 4. Match the definition to the term from the box: 1. _____ Release of wastes or cell products from inside to outside a cell a. Diffusion 2. _____ Diffusion of water molecules through a selectively permeable b. Equilibrium membrane c. Exocytosis 3. _____ Solution where the water is more concentrated outside of the d. Osmosis cell e. Active Transport f. Hypertonic 4. _____ Continuous movement of particles but no overall change in concentration 5. _____ Movement of particles from an area of higher concentration to one of lower concentration 6. _____ Movement of molecules into or out of the cell that requires the use of energy 5. Determine the percent concentration of the following solutions. (NaCl = salt) A. 45 grams of NaCl in 1000 mL of water = ____________________________________________ B. 3 grams of NaCl in 20 mL of water = ____________________________________________ C. 34 grams of NaCl in 500 mL of water = ____________________________________________ D. 78 grams of NaCl in 800 mL of water = ____________________________________________ Which is the most Concentrated: Which is the most Dilute: How do you know? 6. Compare and Contrast Active and Passive Transport: Use the pictures on the left to answer the questions on the right. 7. After digestion (HINT: glucose is a LARGE molecule and the cell needs it!) a. Which side has the higher concentration of glucose – blood = glucose molecule or cell? _________________________________ b. Which way will the glucose go? _________________________________ blood cell c. Does this require energy? ________________________ d. Is this active or passive transport? ____________________________ 8. Plant cell after being over-­watered. Water rushes into the plant cell’s vacuole. Is this diffusion or osmosis? ____________________________________________ 9. Plant cell after not being watered lately, so it has begun to wilt: a. Which way will the water go -­‐ into the vacuole, or out of the vacuole? _____________________________________________________________________ b. By what process will the water move? _____________________________________________________________________ c. What is the name for the pressure caused by a vacuole inside a plant cell? _____________________________________________________________________ 10. An amoeba engulfs a particle of food. a. Does this require energy? _____________________________________________ b. Is this active or passive transport? ___________________________________ c. Is this endocytosis or exocytosis? _____________________________________ 11. An amoeba expels waste. a. Does this require energy? __________________________________________ b. Is this active or passive transport? ________________________________ c. Is this endocytosis or exocytosis? __________________________________ 12. Red bloods cells placed in beaker of water a. Will water move from the red blood cells to the beaker of water, or from the beaker of water to the red blood cells: ____________________________________________________________________________ b. Which has the higher concentration of water, the beaker of water or the red blood cells? ____________________________________________________________________________ c. Does this require energy? _______________________________________________ d. Is this diffusion or osmosis? ____________________________________________ 13. Complete the table below: Isotonic
Hypotonic Hypertonic
STATEMENT
Solution
Solution
Solution
1. The concentration of the water in the solution is lower
than the concentration of water inside the cell.
2. When a cell is placed in this solution, water will enter
the cell by osmosis causing it to swell.
3. The concentration of the water in the solution is the
same as the concentration inside the cell.
4. The concentration of the water in the solution is higher
than the concentration inside the cell.
5. When this solution is injected into the body no cell
disruption occurs because no net movement occurs.
6. Putting a plant in this solution will result in water loss
and cause the plant to wilt.
7. The cell will shrivel when placed in this type of solution.
8. When a cell is placed in this type of solution, there will
be equal amounts of water moving in and out of the cell
at equal rates.
14. What happens to animal cells if they are put in fresh water? Why? 15. Why don’t plant cells burst if a lot of water diffuses into them? 16. Salt water crabs have the same proportion of salt in their cells as the water that they live in. Considering this, what would happen to the cells of a crab if you put it in fresh water, why? 17. Directions: 1. Fill in the missing concentration of water or solute (must add up to 100%). 2. Draw an arrow to show the net movement of water. 3. Label the type of solution hypertonic, hypotonic, or isotonic on the line below the picture. 1.
15% solute 2. 18% solute 10% solute ____________________
3.
____________________
4. 95% H2O 85% H2O ____________________
10% solute 15% solute 15% solute ____________________