Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Which of the following is true about condensation reactions?
A. Condensation reactions are invariably exergonic.
B. Condensation reactions involve the depolymerizion of macromolecules.
C. Condensation reactions involve the loss of the elements of water.
D. A typical condensation reaction is the formation of ADP from ATP and inorganic phosphate.
Use the drawing to answer the following:
a. Label the bases as A, c, G, or T
b. Draw in the Hydrogen bonds
c. Circle one Glycosidic bond
d. Star one Phosphodiester linkage
17. 1- Butanol was converted into butyl propanoate by reaction with an excess of propanoic acid. What is the name of this reaction?
A.
Acid-base reaction
B.
Base hydrolysis
C.
Acid hydrolysis
D.
Esterification
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- What structures are found in sterol molecules Select one: a. Waxes b. Double helixes c. Molecular rings d. Proteinsarrow_forwardThe model below shows a chemical reaction that takes place in cells. B Which statement correctly describes the details of the reaction shown above? A A polymer is built from monomers as water is removed. U HO-1 2 3 с HO- 1 2 3 H HO D H₂O A lipid polymer is built from monomers as water is removed. A polymer is hydrolyzed into its component monomers as water is added. Adhesion is occurring between water molecules. -Harrow_forwardMatch each reaction description to the type of enzyme that catalyzes the reaction. 1. Oxidation and reduction of compounds 2. Transfers a functional group from one compound to another compound 3. Utilizes water to break bonds within a compound 4. Addition/removal of a group of atoms and bonds within a compound 5. Forms a bond between two compounds A. Ligase B. Transferase C. Hydrolase D. Oxidoreductase E. Isomerase F. Lyasearrow_forward
- You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use? A. Test for the ability to reduce Cu2+. Only lactose will react. B. Test both for solubility in water. Sucrose is very soluble; lactose is only minimally soluble. C. React each with bromine (Br2) water. Only sucrose will react. D. Dissolve each in water and record the pH. Lactose is far more acidic than sucrose. Termites and cows have bacteria in their digestive tracts that can obtain glucose from plant cellulose because they have enzymes that can attack A. α-D-glucoside. B. β-D-glucoside. C. cellulose branch points. D. hydrogen bonds in cellulose fibrils. The chemical name for table sugar is ________ and it is a ________. A. lactose; disaccharide…arrow_forwardWhich of the following best describes this reaction ? Choose one: O A. redox O B. condensation C. hydrolysisarrow_forwardWhat is the chemical mechanism by which cells make polymers from monomers? A. Phosphodiester linkages B. Hydrolysis C. Ionic bonding D. Dehydration reactionarrow_forward
- What is true about lipids? A. They are polar and therefore soluble in polar solvents B They are polar and therefore soluble in nonpolar solvents C. They are nonpolar solvents D. They are nonpolar and therefore soluble in polar solventsarrow_forwardWould water be produced or used up when proteins break apart into amino acids? Explain your answer by describing the reaction.arrow_forwardA (-) charge in the transition state can be stabilized by a catalyst, which is usually a(n): a. Anion b. Base Oc. Nucleophile Od. Acidarrow_forward
- Peptide bonds are formed via what type of reaction? A. Condensation B. Hydrolysis C. Oxidation-Reduction D. None of the abovearrow_forwardDefine the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e. sphingomyelinarrow_forward2) dehydration reaction means ? A. molecules are breaking down by adding water. B. molecules are breaking down by removing water. C. forming a macromolecule by adding water. D. forming a macromolecule by removing water.arrow_forward
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