1. What is the structural difference between fat and oil? 2. Write a balanced chemical equation for the preparation of a

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1 What Is The Structural Difference Between Fat And Oil 2 Write A Balanced Chemical Equation For The Preparation Of A 1 (37.2 KiB) Viewed 22 times

1 What Is The Structural Difference Between Fat And Oil 2 Write A Balanced Chemical Equation For The Preparation Of A 2 (37.67 KiB) Viewed 22 times

1. What is the structural difference between fat and oil? 2. Write a balanced chemical equation for the preparation of a typical soap from fat. Use R for the alkyl group of the fat. Show the reaction between it and sodium hydroxide. Draw the reaction arrow and then draw the structure of the products (glycerol and soap.) 3. For typical soaps, what do the "R" groups in the previous equation consist of? 4. Circle the portion of the soap molecule below that is water-soluble. Why is this portion water-soluble? Loo Na 5. Circle the portion of the soap molecule below that is fat-soluble. Why is this portion fat- soluble? O Lorem Na
6. Write a brief paragraph about how soap works (water and oil do not mix, yet soap dissolves in both.) Describe how soap functions to remove grease or oil. Questions: Proteins 1. All amino acids contain which two functional groups? and 2. The structural formulas of amino acids are the same except a. carboxyl group c. alpha car b. amino group d. side (R) group 3. The peptide bonds that link amino acids in a protein are a. ester bonds c. ether bonds b. amide bonds d. glycosidic bonds 4. At pH<5, the zwitterions for alanine (pl=6) will have a. a net positive charge c. a net negative charge b. an overall charge of zero d. low solubility in water 5. Draw Fischer projections(vertical with the most oxidized Cat the top) for L-alanine (R =- CH), L-serine (R =-CH2OH) and L- methionine (R = -CH2CH.SCH) in their zwitterion form. L-alanine L-serine L-methionine 6. Draw the correct structure for the tripeptides, Ser-Ala-Asp and Ala-Gly-Ser R= Ala: -CH Ser: -CH2OH Asp:CHCOOH Gly: -H Ser-Ala-Asp: Ala-Gly-Ser: 2