Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2.L1, Problem 14MCQ
14. A phospholipid contains
a. three fatty acids bound to glycerol
b. three fatty acids, a glycerol, and a phosphate
c. two fatty acids and a phosphate bound to glycerol
d. three cholesterol molecules bound to glycerol
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What are the components of a phospholipid? SELECT ALL THAT APPLY
A. A polar phosphate group
B. Three fatty acid chains
C. Nonpolar fatty acid chains
D. A nonpolar glycerol backbone
The major lipid components of cell membranes are:
OA. sphingolipids
O B. prostaglandins
O c. phosphoglycerides
D. terpenoids
34
1. Phospholipids have ____ fatty acids while triglycerides _____ fatty acids. A. one and two B. three and two C. two and one D. two and three
2. Which one of the following is / are function (s) of lipids? A. Insulation B. Cell membrane structure C. Energy storage D. All of the above
3. The term polyunsaturated fatty acid refers to ____ A. A fatty acid in which all carbons are bonded to hydrogens (only single bonds) B. A fatty acid in which more than one double bond exists C. A fatty acid in which only one double bond exists D. None of the above
4. Cholesterol is an example of a __________ A. Phospholipid B. Triglyceride C. Sterol D. Diglyceride 5. What is the role of bile acids?
A. Digestion of fat to diglyceride and two fatty acids B. Digestion of fat to monoglyceride and two fatty acids C. Transportation of fats through the blood D. Emulsification of fats
Chapter 2 Solutions
Foundations in Microbiology
Ch. 2.1 - Prob. 1ELOCh. 2.1 - Prob. 2ELOCh. 2.1 - Prob. 3ELOCh. 2.1 - Prob. 4ELOCh. 2.1 - Prob. 5ELOCh. 2.1 - Prob. 1CYPCh. 2.1 - Prob. 2CYPCh. 2.1 - Prob. 3CYPCh. 2.1 - Prob. 4CYPCh. 2.1 - Prob. 5CYP
Ch. 2.1 - Prob. 6CYPCh. 2.2 - Prob. 6ELOCh. 2.2 - Prob. 7ELOCh. 2.2 - Prob. 8ELOCh. 2.2 - Prob. 9ELOCh. 2.2 - Prob. 10ELOCh. 2.2 - Prob. 11ELOCh. 2.2 - 7. Explain how the concepti of molecules and...Ch. 2.2 - Prob. 8CYPCh. 2.2 - Prob. 9CYPCh. 2.2 - Prob. 10CYPCh. 2.2 - Prob. 11CYPCh. 2.2 - Prob. 12CYPCh. 2.2 - Prob. 13CYPCh. 2.2 - Prob. 14CYPCh. 2.3 - Prob. 12ELOCh. 2.3 - 13. Explain solutes, solvents, and hydration.Ch. 2.3 - Prob. 14ELOCh. 2.3 - 15. Describe the pH scale and how it was derived;...Ch. 2.3 - Prob. 15CYPCh. 2.3 - Prob. 16CYPCh. 2.3 - 17. What properties of water make it an effective...Ch. 2.3 - Prob. 18CYPCh. 2.3 - 19. What determines whether a substance is an acid...Ch. 2.4 - 16. Describe the chemistry of carbon and the...Ch. 2.4 - Prob. 17ELOCh. 2.4 - Prob. 18ELOCh. 2.4 - Prob. 20CYPCh. 2.4 - Prob. 21CYPCh. 2.4 - Prob. 22CYPCh. 2.4 - 23. What are functional groups?Ch. 2.4 - Prob. 24CYPCh. 2.5 - 19. Define carbohydrate and know the functional...Ch. 2.5 - Prob. 20ELOCh. 2.5 - 21. Discuss the functions of carbohydrates in...Ch. 2.5 - Prob. 25CYPCh. 2.5 - Prob. 26CYPCh. 2.5 - 27. What are some of the functions of...Ch. 2.6 - 22. Define lipid, triglyceride, phospholipid,...Ch. 2.6 - 23. Describe how an ester bond is formed.Ch. 2.6 - Prob. 24ELOCh. 2.6 - 28. Draw simple structural molecules of...Ch. 2.7 - 25. Describe the structures of peptides and...Ch. 2.7 - 26. Characterize the four levels of protein...Ch. 2.7 - 27. Summarize some of the essential functions of...Ch. 2.7 - Prob. 29CYPCh. 2.7 - 30. Differentiate between a peptide, a...Ch. 2.7 - 31. Explain what causes the various levels of...Ch. 2.7 - 32. What functions do proteins perform in a cell?Ch. 2.8 - 28. Identify a nucleic acid and differentiate...Ch. 2.8 - Prob. 29ELOCh. 2.8 - 30. Explain how the DNA code may be copied, and...Ch. 2.8 - 33. Describe a nucleotide and a polynucleotide,...Ch. 2.8 - 34. Name the two purines and the three...Ch. 2.8 - 35. What are the functions of RNA?Ch. 2.8 - 36.What is ATP, and how does it function in cells?Ch. 2.L1 - 1. The smallest unit of matter with unique...Ch. 2.L1 - 2. The charge of a proton is exactly balanced by...Ch. 2.L1 - Prob. 3MCQCh. 2.L1 - Prob. 4MCQCh. 2.L1 - Prob. 5MCQCh. 2.L1 - Prob. 6MCQCh. 2.L1 - Prob. 7MCQCh. 2.L1 - 8. An atom that can donate electrons during a...Ch. 2.L1 - 9. In a solution of NaCl and water, NaCl is the...Ch. 2.L1 - 10. A solution with a pH of 2 than a solution with...Ch. 2.L1 - 11. Fructose is a type of a. disaccharide b....Ch. 2.L1 - 6. Bonds in which atoms share electrons are...Ch. 2.L1 - 13. How is our understanding of microbiology...Ch. 2.L1 - 14. A phospholipid contains a. three fatty acids...Ch. 2.L1 - 15. Proteins are synthesized by linking amino...Ch. 2.L1 - 16. The amino acid that accounts for disulfide...Ch. 2.L1 - 17. DNA is a hereditary molecule that is composed...Ch. 2.L1 - 18. What is meant by the term DMA replication? a....Ch. 2.L1 - 19. Proteins can function as a. enzymes b....Ch. 2.L1 - 20. RNA plays an important role in what biological...Ch. 2.L1 - 1. Which of the following has not been a major...Ch. 2.L1 - 2. What was a significant result of the Mars...Ch. 2.L1 - Prob. 3CSRCh. 2.L1 - Prob. 1WCCh. 2.L1 - Prob. 2WCCh. 2.L1 - Prob. 3WCCh. 2.L1 - Prob. 4WCCh. 2.L1 - Prob. 5WCCh. 2.L1 - 6. Why are hydrogen bonds relatively weak?Ch. 2.L1 - 7. What kind of substances will be expected to be...Ch. 2.L1 - Prob. 8WCCh. 2.L1 - Prob. 9WCCh. 2.L1 - 10. What makes the amino acids distinctive, and...Ch. 2.L1 - Prob. 11WCCh. 2.L1 - Prob. 12WCCh. 2.L1 - 6. Bonds in which atoms share electrons are...Ch. 2.L2 - Prob. 1CTCh. 2.L2 - Prob. 2CTCh. 2.L2 - Prob. 3CTCh. 2.L2 - 4. Distinguish between polar and ionic compounds.Ch. 2.L2 - 5. Is galactose an aldehyde or a ketone sugar?Ch. 2.L2 - 6. a. How many water molecules are released when a...Ch. 2.L2 - Prob. 7CTCh. 2.L2 - Prob. 8CTCh. 2.L2 - Prob. 1VC
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- A group of C20 lipids that contain a five-membered ring with two long side chains. OA. sphingolipids B. prostaglandins O c. phosphoglycerides O D. terpenoids 19arrow_forward12. Which type of lipid contains at least one ester linkage in its structure? A. Wax B. sphingolipid C. Triglyceride D. Both A and B E. Both A and C F. Both B and Carrow_forwardA fatty acid has one double covalent bond betweencarbon atoms.a. cholesterol c. phospholipid e. saturatedb. monounsaturated d. polyunsaturatedarrow_forward
- 14. What type of lipid contains two fatty acids in its structure? A. Wax B. Sphingolipid C. Steroid D. Glycerophospholipid E. Triglyceridearrow_forward1. Which one is classified as signaling lipid a. TAG b. Cholesterol c. Bile d. Eicosanoids 2. Which on is compound lipid? a. phospholipids b. coconut oil c. lard d. beeswax 3. What is the functional group in fatty acid structure? a. palmitic acid b. oleic acid c. linoleic acid d. myristic acidarrow_forwardMatch the following descriptions with the correct lipid-based compounds: Cholesterol Sphingolipids Phosphoacylgycerol Glycerophospholipids Fatty acyls…arrow_forward
- of the following is incorrect about the sphingolipids? a. The backbone is sphingosine which has an amine group to which a fatty acid can be attac ▸ b. The sphingophospholipids have a phosphate group with an alcohol attached c. They are components of membranes Od. The cerebrosides have oligosaccharides as head groupsarrow_forward1. Carbohydrates a. Are only ketoses b. Have one carboxyl group C. Serve as a fuel d. Are only polysaccharides 2. Lipids: a. Are Hydrophilic b. Contains monomers c. Are divided into 3 types d. Phospholipids can function as signaling molecules 3. Proteins: a. Function depends on the structure b. Monomers are the nucleotides c. Can be denatured by physical and chemical changes d. Tertiary structure has Vander Waals interactions formed between R groups of amino acids 4. Nucleic acids: a. Are polymers of nucleotides b. DNA and RNA are the same c. DNA contains URACIL base d. RNA is a double helix B- True or False: 1) Genes consist of DNA which belongs to the class of nucleic acids 2) The process of hydrogenating vegetable produces only saturated fats 3) The monomers of proteins are nucleotides 4) Phospholipids are formed by 1 glycerol and 3 fatty acids 5) Unsaturated fats contain 1 or more double bonds between carbon atomsarrow_forwardMatch the following descriptions with the correct lipid-based compounds: v Cholesterol A. regulates calcium and phosphorus metabolism and deposition in bones v Sphingolipids B. prevents the attack of peroxides on unsaturated fatty acids in membrane v Phosphoacylgycerol C. usually found on the cell surface of blood cells for cell recognition v Glycerophospholipids D. building block of complex lipids v Fatty acyls E. serve as storage fat in the liver and muscles v Glycerolipids F. bulky & rigid and fits into membrane lipids disrupting membrane regularity v Gangliosides G. plays a role in vision and the development of nervous system H. involved in metabolism and signalling I. abundant in nervous system J. control cell permeability K. synthesized from isoprene units and used by plants for growth and odor v Terpenes v Vitamin A Vitamin D Vitamin Earrow_forward
- 36. Which of the following is true concerning phospholipids? A. The "head" of the phospholipid molecules possess an affinity for water. B. The "tails" of the phospholipid molecules possess an affinity for water. C. The fatty acid tails of the molecule possess an affinity for water. D. The "head" of the molecule possesses an affinity for fats.arrow_forwardSphingolipids can contain of all of the following except A. glycerol. B. sphingosine. C. phosphocholine. D. a mono- or oligosaccharide.arrow_forward1. These fatty acids contain no double bond along the chain. a. unsaturated fatty acid b. saturated fatty acid c. polyunsaturated fatty acid d. monounsaturated fatty acids 2. The general formula of a fatty acid when completely saturated. a. CnH2n0 b. CnH3n02 c. CnH2n02 d. CnH2n03 3. Which of the following is TRUE about trans- fatty acid? a. It is produced when unsaturated fatty acids undergone hydrogenation. b. Consumption of trans fatty acids is now known to be detrimental to health. c. Major sources includes processed product, fast food products, cakes, and other bakery products. d. All of the above 4. The melting points of even-numbered carbon fatty acids increase with chain length. Furthermore, melting point decreases according to unsaturation. a. Both statements are correct. b. The first statement is correct, but the second statement is incorrect. c. The first statement is incorrect, but the second statement is correct. d. Both statements are incorrect. 5. Which of the following…arrow_forward
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