1. What happens to electrons in an oxidation reaction? Electrons are shared equally. Electrons are shared but not equally. Electrons are gained. Electrons are lost. Electrons are sometimes shared equally. a. b. C. d. e. 2. Nucleic acids are polymers of ... sugars amino acids lipids nucleotides starch 3. Which term best describes blood, which has a pH of 7.4? weakly acidic weakly basic strongly acidic strongly basic neutral a. b. C. d. e. a. b. C. d. e. 4. Which process involves the addition of water to compounds?
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- 1. Define what a decomposition reaction is: htaction in n 9 2. Synthesis reactions that use water in the reaction are ddralion Rodton 3. Collectively decomposition reactions are referred to as Calalomiomm C. Reversible Reactions 1. A chemical reaction in which the reaction can proceed from or from to to D. Oxidation-Reduction Reactions 1. Chemical reactions that result from the exchange of olootarce 2. The loss of an electron by a reactant is referred to as 3. refers to the gain of an electron by a reactant. E. Energy 1. Stored energy that is not doing work is called 2. Energy that is actually working and moving matter is 3. Mechanical Energy ina a. Results from the otal amnn of CoienH al and 4. Chemical Energy a. Potential energy stored 5. Heat Energy a. Energy that flows Speed of Chemical Reactions a. The activation energy is b. Substances that increase the rate of chemical reactions without being 6. used up in the reaction are called 1. Enzymes are Created by of ty C Page 3 of91. Melting point: what happens when the carbon chain length of fatty acids become shorter? increased melting point decrease melting point no change 2. Why do lipids with long chain fatty acids have lower saponification value? they are linear in structure, thus it is difficult to saponify they have lower number of carboxyl group per 1 gram of sample they require less amount of KOH during titration they require less HCL during back titration 3. Halogenation depends on which concept? presence of double bond in the glycerol portion presence of double bond in the fatty acid portion presence of carboxylic acid groups reactivity of potassium ionsadenine molecule ii. NH2 N- НО-Р—О—Р—О—Р—О. ОН ОН ОН i. Phosphate chain ОН ОН iii ribose sugar
- 15. Rank the solubility of the following fatty acids in water. A. C<E<B<D<F<A B. A<F<D<B<E<C C. C<E<B<F<D<A D. A<D<F<B<E<C 16. Using the same information in no. 15, rank the solubility of the fatty acids in hexane.* A. C<E<B<D<F<A B. A<F<D<B<E<C C. C<E<B<F<D<A D. A<D<F<B<E<CSphingolipids do I. contain a glycerol core with a phosphocholine headgroup. II. contain a modified sphingosine. III. usually has a ceramide moiety IV. function as a precursor to sterols. O II, IV O II, II O , II, II O I, II, IVe. 12.. Name both of the molecules below, and circle/ identify which of the following two molecules has lower free energy. I 0- O O O O -P-O O™ N H₂N OH OH no fofo HO- O- OH OH NH₂ N S N OH OH
- 3. Consider the reaction: H3C-(CH₂) H H C—C—C—SCOA HH H₂C-(CH₂) a. What kind of reaction is being performed here? b. What enzyme performs this reaction? -C—C—C—SCOA H H c. What cofactors, if any, are required for this reaction?A. Storage form of metabolic fuel B: Have e protective function in bacteria, plant, and insects C. The structural component of membranes D. Exhibit increased catalytic activity ANSWER: RATIO: 6. Saturated fatty acids tend to be more A. Solid B. Liquid ANSWER: RATIO: 7. Which of the following statements regarding unsaturated fats is true? A. Unsaturated fats contain carbon-carbon double bonds. B. Unsaturated fats are liquid at room temperature. C. Unsaturated fats have fewer hydrogens per carbon than a salurated fat with the same number of carbons. D. All of the above ANSWER: RATIO: 8. Types of omega-3-fatty acids. Select all that apply. A. Linoleic acid B. Linolenic acid C. Eicosapentaenoic acid (EPA) D. Docosahexaenoic acid (DHA) ANSWER: RATIO: 9. A type of omega-3 fatty acid that is found in plant oils. A. Linoleic acid B. Linolenic acid C. Eicosapentaenoic acid (EPA) D. Docosahexaenoic acid (DHA) ANSWER: RATIO: 10. The following is true about ergosterol, EXCEPT: (Select all that…1. Explain how temperature and pH affect enzyme activity from a biochemical standpoint. What are the changes in enzymes caused by these physical factors? 2. Enzymes perform best at 37C, which is the average cell temperature. What does this say about the significance of controlling one's body temperature?
- If the following structure undergoes oxidation reaction, which of the product(s) will form: CH3 H3C CH2 CH2 CH-OH OA This molecule cannot go through oxidation reaction. OB. Ketone OC. Aldehyde & Carboxylic acid O D.Ether and water OE Aldehydes onlyThe Industrial process for forming methanol involvės a čatalyst: Catalyst CO + 2H2 High p.T CH;OH Draw molecular pictures showing the course of this reaction. Draw Your Solution Suggest how the catalyst might make it easier for these reactions to occur. Hydrogen gas the catalyst's surface as Hatoms, which then react with co molecules more than direct reaction of CO molecules with H2 molecules. Bonds that must be broken for this reaction to * molecule. single bondis) and : bond(s) and Occur are i * bond(s) in the H- e bond(s). Bonds that are formed are C- H- eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer5. Consider the reaction: | OH H H₂C-(CH₂) C C—C—SCOA HH H₂C-(CH₂) a. What kind of reaction is being performed here? b. What enzyme performs this reaction? OHO C—C—C—SCOA c. What cofactors, if any, are required for this reaction? H