Biology 102/103 Lab3:Cell Structure and Function Question # 00049759 Posted By: steve_jobs Updated on: 02/20/2015 03:08 PM Due on: 02/28/2015 Subject Biology Topic General Biology Tutorials: 1 See full Answer Question Your Full Name: Biology 102/103Lab3:Cell Structure and FunctionINSTRUCTIONS:· On your own and without assistance, complete thisLab 3Answer Sheet electronically and submit it via theAssignments Folder by the date listed in theCourse Schedule (underSyllabus).· To conduct your laboratory exercises, use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering the questions.· Save your Lab 3 Answer Sheet in the following format: LastName_Lab3 (e.g., Smith_Lab3).· You should submit your document as a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility.Pre-Lab Questions1. Identify three major similarities and differences between prokaryotic and eukaryotic cells.2. Where is the DNA housed in a prokaryotic cell? Where is it housed in a eukaryotic cell?3. Identify three structures which provide support and protection in a eukaryotic cell.Experiment 1: Cell Structure and FunctionLabel each of the arrows in the following slide image:Post-Lab Questions1. What is the difference between the rough and smooth endoplasmic reticulum?2. Would an animal cell be able to survive without mitochondria? Why or why not?3. What could you determine about a specimen if you observed a slide image showing the specimen with a cell wall, but no nucleus or mitochondria?4. Hypothesize why parts of a plant, such as the leaves, are green, but other parts, such as the roots, are not. Use scientific reasoning to support your hypothesis.Experiment 2: Osmosis - Direction and Concentration GradientsData Tables and Post-Lab AssessmentTable 3: Sucrose Concentration vs. Tubing PermeabilityTable 3: Sucrose Concentration vs. Tubing PermeabilityBand Color% Sucrose in Beaker% Sucrose in BagInitial Volume (mL)Final Volume (mL)Net Displacement (mL)YellowRedBlueGreenHypothesis:Post-Lab Questions1. For each of the tubing pieces, identify whether the solution inside was hypotonic, hypertonic, or isotonic in comparison to the beaker solution in which it was placed.2. Which tubing increased the most in volume? Explain why this happened.3. What do the results of this experiment this tell you about the relative tonicity between the contents of the tubing and the solution in the beaker?4. What would happen if the tubing with the yellow band was placed in a beaker of distilled water?5. How are excess salts that accumulate in cells transferred to the blood stream so they can be removed from the body? Be sure to explain how this process works in terms of tonicity.6. If you wanted water to flow out of a tubing piece filled with a 50% solution, what would the minimum concentration of the beaker solution need to be? Explain your answer using scientific evidence.7. How is this experiment similar to the way a cell membrane works in the body? How is it different? Be specific with your response. Rating: 4.9/5
Solution: UMUC Biology 102/103 Lab3:Cell Structure and Function