(3rd ed.) Page 1BIO 100 LAB SIGN OFF PAGE - UNIT 2Name ___________________________Please staple all of your lab pages for this Unit together with this page as the top. You will use this page to get your Labs for Unit 2 signed off by the Biology Learning Center staff. You need to have all of the following steps initialed by a staff member before you will be allowed to take theUnit 2 Exam.After you have obtained all of your sign offs for this Unit, be sure that a BLC staff member indicates on your Lab Card that you are OK to take the Unit 2 Exam. Also, keep this sign off page, along with your completed lab worksheets, as proof of your lab completion. If your Lab Card indicates that you have not completed the required Labs for this Unit, and you feel that you have, it is up to you to provide proof that you have indeed done the Labs. Keep this page!___________ Unit 2, Step 2A (Building Biological Molecules - Carbohydrates)___________ Unit 2, Step 2B (Building Biological Molecules - Lipids)___________ Unit 2, Step 2C (Building Biological Molecules - Proteins)___________ Unit 2, Step 2D (Microscope - practice with the letter “e”)___________ Unit 2, Step 2E (Microscope - Plant Cells: Elodea)___________ Unit 2, Step 2F (Microscope - Animal Cells: human cheek cells)*BLC Staff: After the student receives his/her last initial on this page, please record that he/she has completed the required lab signoffs for this unit.NOTE: DO NOT ATTEMPT ANY OF THESE LABS UNTIL AFTER YOU HAVE READ THE TEXTBOOK CHAPTER AND VIEWED THE CORRESPONDING STUDY GUIDE!(3rd ed.) Page 2THEY PROVIDE THE NECESSARY BACKGROUND INFORMATION.Unit 2, STEP 2A-C: “Building Biological Molecules” lab This lab must be done in the Biology Learning Center. The instructions are located in Unit 2, Step 2 (A-C), of the BIO 100 Course Website. As you complete each part of the lab, take your results to the front desk in the Biology Learning Center for a sign off (you will be prompted whento do so).To begin, go to Biology 100 Course Website, click on the Unit 2 link on the Course Content page,scroll down to find Step 2, and then click on the link to “Building Biological Molecules” lab instructions. Follow the instructions on the website, build your molecules, and fill in all of the required information on your worksheets as you complete the lab. Note: you will be working at acomputer station in the BLC with instructions on the computer screen in front of you, so there is no need to print out the lab instructions from the website. (You only need to print these lab worksheets)Step 2, Part A: Carbohydrates1. What type of molecules were the two separate glucose units that you started with? (Hint: werethey monosaccharides, disaccharides, or polysaccharides?) 2. What type of molecule did you make when you formed maltose? (Hint: was it a monosaccharide, disaccharide, or polysaccharide?) 3. In order to join the two glucose units together to form maltose, what molecule needed to be removed (Hint: what was left over)? 4. Name another molecule, besides maltose, that is composed of two carbohydrate subunits.TAKE YOUR MALTOSE MOLECULE, WATER MOLECULE, AND COMPLETED WORKSHEETS TO THE FRONT DESK FOR A SIGNOFF BY A STAFF MEMBER BEFORE YOU MOVE ON TO PART B. (Unit 2, Step 2A)(3rd ed.) Page 3Step 2, Part B: Lipids5. What are the names of the two different molecules that you used to build a molecule of triglyceride (or fat)? Also indicate how many of each molecule you used? 6. Are triglycerides hydrophobic or hydrophilic molecules? (Hint: this information was covered earlier in the lab activity when you were creating your functional groups; although the glycerol has some oxygens, the long fatty acid chains containing only carbons and hydrogens make the triglyceride nonpolar)7. Do triglycerides (fats) readily dissolve in water (yes or no)?8. Name two other types (categories) or examples of lipids, besides the triglyceride (fat). TAKE YOUR TRIGLYCERIDE, 3 WATER MOLECULES, AND COMPLETED WORKSHEETS TO THE FRONT DESK FOR A SIGNOFF BY A STAFF MEMBER BEFORE YOU MOVE ON TO PART C. (Unit 2, Step 2B)Step 2, Part C: Proteins9. What are the monomer subunits or “building blocks” of proteins called (2 words)? (Hint: there are 20 different ones; you made two examples, alanine and glycine; we are looking for the general term to describe the 20 different examples) 10. What is the specific name of the bond that is formed between two linked amino acids? (Hint: itis formed between the carboxyl group of one amino acid and the amino group of the other amino acid) 11. Show the staff member the following parts of your dipeptide:-point to an amino group-point to a carboxyl group(3rd ed.) Page 4-point to the peptide bond between the two linked amino acids-point to an R group (what your book calls a “side” group)12. Does every amino acid have the same R group, or does it vary for the 20 different amino acids? TAKE YOUR DIPEPTIDE, WATER MOLECULE, AND COMPLETED WORKSHEETS TO THE FRONT DESK FOR A SIGNOFF BY A STAFF MEMBER BEFORE YOU MOVE ON TO PART D. DON’T FORGET THAT YOU WILL BE ASKED TO IDENTIFY THE PARTS OF YOUR DIPEPTIDE AS INDICATED IN QUESTION #11.(Unit 2, Step 2C)______________________________________________________________________________Unit 2, STEP 2D-F: “Using the Microscope to Study Cells” lab This lab must be done in the Biology Learning Center. The instructions are located in Unit 2, Step 2 (D-F), of the BIO 100 Course Website. As you complete each part of the lab, take your results to the front desk in the Biology Learning Center for a sign off (you will be prompted whento do so). NOTE: YOU WILL BE ASKED TO SHOW US EACH SLIDE UNDER YOUR(3rd ed.) Page 5MICROSCOPE, ONE AT A TIME. THUS, DO NOT MOVE ON TO THE NEXT SLIDE UNTIL AFTER YOU HAVE BEEN CHECKED OFF FOR THE CURRENT ONE! Otherwise, you will be asked to focus your slides again. No exceptions!To begin, go to Biology 100 Course Website, click on the Unit 2 link on the Course Content page,scroll down to find Step 2, and then click on the link to “Using the Microscope to Study Cells” lab instructions. Follow the instructions on the website, focus your slides, and fill in all of the required information on your worksheets as you