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Transcript
Name _______________________________ Period ________ Date ____________________ Macromolecules Interactive Tutorial Directions: Explore the macromolecules in the “Tree of Life” by clicking on the squares with pictures, noticing the basic features of the macromolecules you find. Throughout this interactive activity answer the questions below as they will help you understand the different structures and functions of biological molecules. Follow the link http://www.concord.org/~btinker/workbench_web/unitIV_revised/tree_life_wrkst.html You will also need your notes and textbook Carbohydrates: click on From maple syrup to sucrose 1. Sucrose is made of two _________ = __________and ____________ 2. Two monomers combine through a process known as __________ to make a ____________. 3. Draw the molecular structures for glucose and fructose. Glucose: Fructose: 4. What is the name of the process resulting in disaccharide formation? (refer to your notes) 5. What specifically happens in this reaction? 6. Name the three important roles of carbohydrates. 9. What is the most common monosaccharide? Why is this monosaccharide so important to our daily functioning? 10. What are the elements found in carbohydrates? Click on the Link: From Tree Trunk to cellulose: 11. Cellulose comprises about ________of all vegetable matter; 90 % of _________ is thin cellulose fibers such as these 12. Explain the cross linkage between the monomers in cellulose (Draw the structural components of cellulose). Provide an explanation explaining the reason why cellulose structure is so complex. Cellulose: 13. _____________ is a major structural material of which plants are made. 14. Cellulose is a _____________ molecule composed of __________ or more _____________ molecules strung together. 15. Every stick in this drawing of a polysaccharide chain represents a ____________________ between two carbon atoms. Click on the Link: From leaf to Starch: 16. ________ are insoluable in water and thus can serve as storage depots of glucose. Plants convert excess glucose into __________ for storage. 17. Draw a polymer of starch consisting entirely of glucose monomers: Starch: Lipids: Click on the link “from an iguana to phospholipids” 18. This cell membrane is constructed largely of _____________ (made of fats) arranged in a ________________. 19. a. Draw and label a phospholipid bilayer. Label which regions are hydrophobic and hydrophilic. (Use your notes) Phospholipid Bilayer: b. Draw and explain the difference between a saturated and unsaturated fatty acid. ( use your notes) Saturated Fatty Acid: Unsaturated Fatty Acid: 20. How are glycerol and fatty acids “connected” to make a triglyceride? (Hint: watch the animation http://www.biotopics.co.uk/as/lipidcondensation.html 21. Compare and contrast unsaturated fatty acids with saturated fatty acids. (notes) 22. Use the following website to help you answer the question: http://telstar.ote.cmu.edu/biology/MembranePage/index2.html a. Describe the structure of the steroids. b. Cholesterol is an example of a steroid. State two functions of cholesterol. Click on from Monkey to protein 23. These______________, or____________, carry oxygen from our lungs to all parts of the body. 24. Each hemoglobin is made of four separate globin strands, and each contains a flat disk, a _____ carrying ______. The iron attracts oxygen, holds on to it, and releases it where it is needed. 25. Amino acids can link together in a _____fashion, and make various shapes, including folds. a. what does this mean? 26. Draw one amino acid