Alumno.l 4:07 p. m 56 % UNIT 2 REVIEW Chapter 6: 1. Compare the resolution of the light microscope with that of the electron microscope 2. What part of the cell is best yisualized with a scanning electron microscope? 3. What part of the cell is best yisualized with a transmission electron microscope? 4. Explain the process of cell fractionation 5. Which organelle is isolated at the slowest speed on a centrifuge? Which organelle is isolated last after stepwise increase in centrifuge speed? 6. What organelles do prokaryotic and eukaryotic cells have in common? 7. Know the location and function of the following organelles: nuclear envelope, endoplasmic reticulum, Golgi Complex. lysosome, vesicles, vacuoles mitochondria, chloroplasts. peroxisome, centrioles/centrosome, cilia/flagella. cytoskeletal elements, cell wall and extracellular matrix 8. Know the four types of intercellular junctions and what function they have in cells Chapter 7: 1. Describe the molecules contained within the cell membrane and their functions 2. What is the function of the cell membrane? 3. What is meant by the electr.ochemical gradient and why is it important for the action of the cell membrane? 4. Why is the plasma membrane selectively permeable? 5. Know the difference between the three types of passive transport the cell? Understand the concepts of hypertonic, hypotonic and isotonic solutions? What is physiological saline concentration of most cells? 6. Explain active transport and how the sodium/potassium pump makes ATP? 7. Describe the four type of yesicle medicate transport Chapter 9: 1. Understand what is meant by REDOX reactions? (LEO and GER) 2. Which sugar begins the process of Glycolysis and what is the product? How much energy is produced? Does Glycolysis require oxygen? Where does it OCcur in the cell? 3. What sugar enters the Krebs Cycle and what is the product of this cycle? How much ATP is generated in the Krebs Cycle? Does this process require oxygen. Where does the cycle occur in the cell? 4. What is the function of the Electron Transport Chain? Where is it located in the cell? What is transported through the chain and what is transported across the membrane? 5. What is ATP synthase and why is it important? How does it relate to the terms chemiosmosis and the electrochemical gradient? 6. Understand the total energy produced through cellular respiration? Know the difference between Chapter 10: 1. Distinguish between autotrophs and heterotrophs 2. Know the function of stomata, yeins, chloroplasts. thylakoids