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Transcript
Unit 4: Cells Chapter 4 1. Distinguish between the detail seen and the size of the field of view when viewing a specimen under low verses high power. 2. What limits how big a cell can be and how small? 3. What are the differences between a light microscope, a TEM, and an SEM? What are each used for? Be able to tell from a micrograph which type of microscope was the image taken from. 4. Be able to sketch the structure of the plasma membrane making sure to include the following a. Phospholipid bilayer b. Arrangement of hydrophobic tails and hydrophilic heads c. Proteins 5. Describe the function of plasma membrane 6. Be able to identify on a diagram the structures listed on the cell structure handout 7. Identify which structures from above are found in prokaryotic cells. Identify which are found in eukaryotic cells. Identify those found in plants and those found in animal cells 8. Describe the different types of cell/cell junctions and give examples of where they are found (tight junctions, gap junctions, anchoring junctions, plasmodesmata 9. List organelles that are “membrane bound” 10. Describe the components of the endomembrane system that would be involved in secreting a protein hormone into the blood. (what are they and how do they play a role in this process). Describe how they would produce a lipid that is secreted. How would they make the hydrolytic enzymes of a lysosome? Chapter 5: sections 5.1 – 5.9 1. Describe the function of the various membrane proteins: integrin, glycoproteins, transport proteins, enzymes, receptors 2. Describe the movement of materials across membrane a. Passive transport (describe in terms of concentration of molecules and energy) b. Diffusion (describe in terms of concentration of molecules and energy) c. Facilitated diffusion (describe in terms of concentration of molecules and energy and why this is different from simple diffusion above) d. Active transport (describe in terms of concentration of molecules and energy) e. Exocytosis/endocytosis (what is happening?) f. Explain receptor mediated endocytosis and give an example of something that is taken into the cell in this way. 3. What materials can pass through the phospholipids? 4. Which need to be transported through proteins? 5. Which have to pass by exocytosis/endocytosis? 6. Describe the concentration of solutes in Hypertonic, hypotonic, isotonic solutions. 7. If a cell is placed into each to the types of solutions above, where does the water move (into the cell out of the cell) and what happens to the size of the cell? 8. What type of cells would have turgor pressure? Explain Labs/activities : Best shaped cell?, Osmosis Lab, microscope activity Unit 4: Cells Agenda and Reading Assignments Date Class Homework Mon: 11/11 Cell Structures Tue 11/12 Cell structures Wed 11/13 Reading quiz 4.1-4.5 Microscope activity Thurs 11/14 Microscope activity Fri 11/15 Cell analogy Mon 11/18 Agar cubes Tues 11/19 Membrane structure/ Transport Read 4.1-4.5 Take notes Read 4.1-4.5 Take notes Finish Cell structures worksheet Read 4.6-4.16 Take notes 4.6-4.16 Take notes 4.6-4.16 Take notes 4.17-4.18 4.21-2.22 Take notes 5.1-5.9 Take notes Wed 11/20 Transport across a membrane Pre-lab 5.1-5.9 Take notes Thurs 11/21 Fri 11/22 Reading quiz 5.1-5.9 Osmosis lab Osmosis lab Mon 11/25 Organelle relationships Tues 11/26 Test Lab Study Lab Study Lab study Lab due Tues after Thanksgiving