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Transcript
Name__________________________________________________________________________ Honors Biology MACROMOLECULE WEBQUEST LIPIDS http://www.wisc-online.com/objects/index_tj.asp?objid=AP13204 1. Lipids are ___________________molecules that are insoluble in water. 2. What are fatty acid chains? 3. Define saturated fatty acids 4. In what structures are phospholipids found? 5. What is cholesterol used for in our bodies? From www.chem4kids.com Click on biochemistry Click on lipids 6. What are the two main parts of a lipid? 7. Explain what makes a fat saturated or unsaturated? 8. How does the basic structure of a steroid differ from other macromolecules such as carbohydrates? 9. What is the role of waxes? 10. Compare the energy values of a carbohydrate molecule versus a fat molecule. PROTEINS http://www.wisc-online.com/objects/index_tj.asp?objid=AP13304 1. Proteins comprise what percentage of our body cells? _______ 2. What are proteins built from? 3. How many amino acids do we have in our bodies? ______ 1 4. The primary structure of an amino acid is based upon what? CARBOHYDRATES http://www.wisc-online.com/objects/index_tj.asp?objid=AP13104 1. Carbohydrates are what kind of molecules? 2. What elements are found in carbohydrates? ______________ 3. What is the ratio of Carbon to Hydrogen to Oxygen? ________ 4. Carbohydrates comprise what percentage of our body cells? ________ 5. List 4 monosaccharides 6. What is the smallest carbohydrate called? 7. Disaccharides include what sugar molecules? 8. Polysaccharides include what molecules? 9. Sugars are mainly providing living things with ________. NUCLEIC ACIDS www.chem4kids.com 1. What are nucleic acids? 2. What is the monomer unit of a Nucleic Acid? 3. What is a double helix? 4. What are the three parts to a nucleotide? 2 5. What is the full name of DNA? 6. What part of DNA provides the code for proteins? 7. Genetic variation is based on the A. Sugars B. Hydrogen Bonds C. Phosphate groups D. Nitrogen Bases ENZYMES http://www.biologyinmotion.com/minilec/wrench.html Or you can use www.chem4kids.com 1. What are enzymes? 2. Without enzymes, would most chemical reaction still occur? 3. Without enzymes, what would happen to the rate of chemical reactions? 4. Enzymes are (choose one) a. Lipids c. Proteins b. Carbohydrates d. Nucleic acids 16. Enzymes act as catalysts – what does that mean? 17. Describe this picture of enzyme function in your own words 3 SOME GOOD FUN…. Part A: Go to http://www.phschool.com/science/biology_place/biocoach/bioprop/monomers.html Click through the tutorial until you have covered all concepts 1-6. This is an excellent tutorial. Allow yourself to make the most of it and let it “tutor” you on macromolecules!! Take the “self-quiz” at the end. Part B: Go to http://molo.concord.org/database/activities/226.html Click on “Go to Activity” (the computer may ask to “allow” access, if so…”allow” it) Read first general prompt and then click “next” Read prompt about polymers and then click “next” “Zoom” (by clicking) on ALL organisms in/around Tree of LIfe. Leaves Parrot Bee Spider web Monkey Iguana Syrup Frog Worm Bacteria Human You will do this “zoom” many times on each organism. You will click on actual icon on tree, then again to cellular level, and then click on the blue highlighted in molecular level, and still even further. JUST KEEP CLICKING until you can’t go any further. Read the tutorials about each one. Now, test yourself! Go answer all the questions in part a, b, c, d, e. 4 5