Name __________________________________________________ Period 6
CH3 reading questions
8/27/2014
Answers Here
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Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. Hydrogenation is a chemical process that
a. turns liquid oil to solid fats.
b. turns amino acids into proteins.
c. turns DNA into lipids.
d. creates stable alternative energy sources.
e. does none of these.
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2. A single atom of carbon may form up to ____ covalent bonds with other atoms.
a. 2
d. 5
b. 3
e. 6
c. 4
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3. Although carbon dioxide contains carbon, it is not considered an "organic" compound because
a. it is not found in the earth's crust.
b. it is not present in living cells.
c. the carbon atom is not bonded to at least one hydrogen atom.
d. the carbons are not in chains or rings.
e. it is too small.
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4. An OH group is a(n) ____ group.
a. carboxyl
b. hydroxyl
c. amino
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5. An NH2 group is a(n) ____ group.
a. carboxyl
b. hydroxyl
c. amine
d. methyl
e. carbonyl
d. methyl
e. carbonyl
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6. The figure above illustrates a ____ reaction that produces two _____ and a ____.
a. condensation; hydroxyls; polymer
b. condensation; water molecules; polymer
c. cleavage; water molecules; monomer
d. rearrangement; water molecules; polymer
e. rearrangement; hydrogen ions; polymer
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7. What kind of reaction produces large molecules by linking small molecules?
a. oxidation
d. hydrolysis
b. reduction
e. decarboxylation
c. condensation
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8. Monosaccharides may be characterized by all EXCEPT which of the following?
a. a ketone group
b. carbon, hydrogen, and oxygen in a 1:2:1 ratio
c. a backbone of five to six carbon atoms
d. one carbonyl group
e. the presence of glycerol and fatty acids
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9. Fructose and glucose are
a. isotopes.
b. monosaccharides.
c. disaccharides.
d. six-carbon sugars.
e. both monosaccharides and six-carbon sugars.
____ 10. Oligosaccharides include
a. sucrose.
b. glucose.
c. fructose.
d. lactose
e. both sucrose and lactose.
____ 11. Glucose and fructose
a. form rings with the same number of carbon atoms.
b. both have two oxygen atoms as part of their ring structure.
c. are alike in that both have identical functional groups.
d. contain the same number of hydrogen atoms and hydroxyl groups.
e. are disaccharides.
____ 12. Glucose and sugars in DNA and RNA
a. have the same number of carbon atoms.
b. have the same structural formulas.
c. are the two components of sucrose.
d. are monosaccharides.
e. are both components of RNA.
____ 13. Sucrose is composed of
a. two molecules of fructose.
b. two molecules of glucose.
c. a molecule of fructose and a molecule of glucose.
d. a molecule of fructose and a molecule of galactose.
e. a monosaccharide and a disaccharide.
____ 14. Glycogen is a polysaccharide used for energy storage by
a. animals.
d. bacteria.
b. plants.
e. archaea.
c. protistans.
____ 15. Cellulose is
a. a polysaccharide found in cell walls of plants.
b. a component of cell membranes.
c. an oligosaccharide.
d. formed by hydrolysis of monosaccharides.
e. a component of invertebrate exoskeletons.
____ 16. Which of the following does NOT describe some aspect of polysaccharides?
a. energy storage
b. straight or branched chain
c. glucose subunits
d. contain only carbon, hydrogen, and oxygen atoms
e. produced by condensation reactions
____ 17. Which of the following is NOT true of polysaccharides?
a. composed of many linked monosaccharides
b. may be straight and unbranched or highly branched
c. most likely made of glucose molecules if they are one of the natural
polysaccharides
d. may be insoluble because of their large size and structure
e. are formed by cleavage reactions
____ 18. Which of the following does not belong?
a. phospholipids
b. polysaccharides
c. unsaturated fats
d. steroids
e. saturated fats
____ 19. Triglycerides are
a. carbohydrates.
b. nucleotides.
c. proteins.
d. neutral fats.
e. amino acids.
____ 20. In the figure above, the honeycomb on which the bee is standing, is made up primarily of which of
the following:
a. carbohydrates
d. lipids
b. nucleotides
e. amino acids
c. proteins
____ 21. The dotted areas in the figure above indicate where ____ reactions will occur to produce ____ and
____.
a. condensation; covalent bonds; hydroxyl ions
b. electron transfer; covalent bonds; water molecules
c. condensation; covalent bonds; water molecules
d. cleavage; covalent bonds; hydrogen ions
e. condensation; ionic bonds; hydrogen ions
____ 22. Steroids
a. have no fatty-acid component.
b. consist of four rings.
c. may have different numbers, types, and positions of functional groups attached to
them.
d. are a specialized type of lipid.
e. are described by all of these.
____ 23. Cholesterol
a. has a rigid backbone of four carbon rings.
b. is the most common steroid in animal tissue.
c. is a lipid without a fatty-acid component.
d. is needed to produce sexual development and maturity.
e. is all of these.
____ 24. ____ are long-chain fatty acids attached to long-chain alcohols.
a. Triglycerides
b. Phospholipids
c. Sterols
d. Waxes
e. Most neutral fats
____ 25. Polyunsaturated fats
a. have fewer hydrogen atoms than do saturated fats.
b. are more characteristic of animal fats than plant fats.
c. have no double bonds.
d. are solid at room temperature.
e. are none of these.
____ 26. Lipids
a. yield less energy per gram than do carbohydrates.
b. include cartilage and chitin.
c. include fats consisting of one fatty-acid molecule and three glycerol molecules.
d. are composed of monosaccharides.
e. are none of these.
____ 27. All steroids have
a. the same number of double bonds.
b. one or more fatty acids.
c. four rings of carbon to which other atoms are attached.
d. the same functional groups.
e. the same number and positions of double bonds.
____ 28. The sequence of amino acids is the ____ structure of proteins.
a. primary
b. secondary
c. tertiary
d. quaternary
e. stereo
____ 29. The interaction of several polypeptide chains in a hemoglobin molecule is its ____ structure.
a. primary
d. quaternary
b. secondary
e. combined
c. tertiary
____ 30. The figure above illustrates one possible ____ structure of ____.
a. primary; proteins
d. secondary; proteins
b. primary; carbohydrates
e. tertiary; proteins
c. primary; lipids
____ 31. Denaturation of proteins may result in all of the following EXCEPT
a. breakage of hydrogen bonds.
b. loss of three-dimensional structure.
c. removal of R groups from amino acids.
d. alteration of enzyme activity.
e. endangerment of a cell's life.
____ 32. Which of the following is NOT found in every nucleotide?
a. ribose
d. a double-ring base
b. a phosphate group
e. nitrogen
c. a single-ring base
____ 33. The figure above illustrates a(n)
a. FAD coenzyme.
b. cytosine nucleotide.
c. thymine nucleotide.
d. ATP molecule.
e. adenine nucleotide.
____ 34. Which molecule is incorrectly matched with its monomer?
a. fat; fatty acid
d. glycogen; glucose
b. starch; ribose
e. nucleic acids; nucleotide
c. protein; amino acid
Matching
Matching. Choose the one most appropriate item from its description.
a. a six-carbon sugar
b. found in DNA and RNA
c. principal components of cell membranes
d. affect metabolic reaction rates
____ 35. enzymes
____ 36. glucose
____ 37. nucleotide coenzymes
____ 38. phospholipids
Classification. The following are chemical functional groups that may be part of a biologically
active molecule. Answer the questions by matching the items with the most appropriate group.
a. COOH
e.
f. PO43
b. CH3
g. CHO
c. NH2
d. OH
____ 39. the group that is acidic
____ 40. the group that occurs repeatedly in sugars
____ 41. the carbonyl group of fructose
____ 42. the group on the amino-terminal end of proteins
____ 43. the group on the carboxyl-terminal end of proteins
____ 44. the group that distinguishes glucose from fructose
____ 45. the group typical of energy carriers such as ATP
Classification. The following are basic building blocks of biopolymers. Match the building blocks
with the statements below.
a. amino acid
b. glucose
c. glycerol
d. fatty acid
e. nucleotide
____ 46. the monomers of a polypeptide chain
____ 47. Which two units combine in various ways to form lipids?
a. a and b
b. a and c
c. b and c
d. b and d
e. c and d
CH3 reading questions
Answer Section
MULTIPLE CHOICE
1. ANS: A
PTS: 1
TOP: FEAR OF FRYING
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
2. ANS: C
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
TOP: ORGANIC MOLECULES
3. ANS: C
PTS: 1
TOP: ORGANIC MOLECULES
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
4. ANS: B
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
TOP: MOLECULES OF LIFE-FROM STRUCTURE TO FUNCTION
5. ANS: C
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
TOP: MOLECULES OF LIFE-FROM STRUCTURE TO FUNCTION
6. ANS: B
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
TOP: MOLECULES OF LIFE-FROM STRUCTURE TO FUNCTION
7. ANS: C
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension
TOP: MOLECULES OF LIFE-FROM STRUCTURE TO FUNCTION
8. ANS: E
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Analysis
TOP: CARBOHYDRATES
9. ANS: E
PTS: 1
TOP: CARBOHYDRATES
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
10. ANS: E
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension
TOP: CARBOHYDRATES
11. ANS: D
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension
TOP: CARBOHYDRATES
12. ANS: D
PTS: 1
TOP: CARBOHYDRATES
DIF: Moderate
OBJ: Bloom's Taxonomy: Analysis
13. ANS: C
PTS: 1
TOP: CARBOHYDRATES
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
14. ANS: A
PTS: 1
TOP: CARBOHYDRATES
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
15. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension
TOP: CARBOHYDRATES
16. ANS: D
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Analysis
TOP: CARBOHYDRATES
17. ANS: E
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Analysis
TOP: CARBOHYDRATES
18. ANS: B
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Analysis
TOP: GREASY, OILY--MUST BE LIPIDS
19. ANS: D
PTS: 1
DIF: Moderate
TOP: GREASY, OILY--MUST BE LIPIDS
OBJ: Bloom's Taxonomy: Knowledge
20. ANS: D
PTS: 1
DIF: Moderate
TOP: GREASY, OILY--MUST BE LIPIDS
OBJ: Bloom's Taxonomy: Knowledge
21. ANS: C
PTS: 1
DIF: Difficult
TOP: GREASY, OILY--MUST BE LIPIDS
OBJ: Bloom's Taxonomy: Evaluation
22. ANS: E
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension
TOP: GREASY, OILY--MUST BE LIPIDS
23. ANS: E
PTS: 1
DIF: Difficult
TOP: GREASY, OILY--MUST BE LIPIDS
OBJ: Bloom's Taxonomy: Knowledge
24. ANS: D
PTS: 1
DIF: Difficult
TOP: GREASY, OILY--MUST BE LIPIDS
OBJ: Bloom's Taxonomy: Knowledge
25. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension
TOP: GREASY, OILY--MUST BE LIPIDS
26. ANS: E
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension
TOP: GREASY, OILY--MUST BE LIPIDS
27. ANS: C
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Knowledge | Bloom's Taxonomy: Comprehension
TOP: GREASY, OILY--MUST BE LIPIDS
28. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
TOP: PROTEINS--DIVERSITY IN STRUCTURE AND FUNCTION
29. ANS: D
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge
TOP: PROTEINS--DIVERSITY IN STRUCTURE AND FUNCTION
30. ANS: D
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension
TOP: PROTEINS--DIVERSITY IN STRUCTURE AND FUNCTION
31. ANS: C
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Analysis
TOP: WHY IS PROTEIN STRUCTURE SO IMPORTANT?
32. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Analysis
TOP: NUCLEIC ACIDS
33. ANS: E
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension
34. ANS: B
PTS: 1
TOP: NUCLEIC ACIDS
DIF: Difficult
TOP: NUCLEIC ACIDS
OBJ: Bloom's Taxonomy: Analysis
MATCHING
35. ANS: D
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge | Bloom's Taxonomy: Comprehension
36. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge | Bloom's Taxonomy: Comprehension
37. ANS: B
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge | Bloom's Taxonomy: Comprehension
38. ANS: C
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Knowledge | Bloom's Taxonomy: Comprehension
39. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
40. ANS: D
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
41. ANS: E
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
42. ANS: C
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
43. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
44. ANS: G
PTS: 1
DIF: Difficult
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
45. ANS: F
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
46. ANS: A
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification
47. ANS: E
PTS: 1
DIF: Moderate
OBJ: Bloom's Taxonomy: Comprehension | Bloom's Taxonomy: Application
MSC: Classification