Test Bank for
Foundations in
Microbiology 8thEditio
Chapter 02 Testbank
Student: ___________________________________________________________________________
, Test Bank For Talaro's Foundations in Microbiology
Test Bank For Talaro's Foundations in Microbiology
8. A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution. If chemical analysis was
performed to identify the contents of each beaker, which of the following would be found in the beaker of DNA but not in the
beaker with glucose?
A. amino acids
B. hydrogen and oxygen atoms
C. nitrogen and phosphorus
D. fatty acids
E. carbon atoms
9. C6H12O6 + C6H12O6→ C12 H22O11 + H2O represents
A. formation of a peptide bond.
B. a decomposition reaction.
C. denaturatio
n.
D. formation of a polysaccharide. E.
dehydration synthesis.
10. The atomic number equals the number of __________ an atom possesses.
A. neutrons
B. protons
C. protons plus electrons
D. neutrons plus protons
E. electrons plus protons
11. If carbon has an atomic number of 6 and an atomic mass of 14, how many neutrons does it have?
A. 6
B. 7
C. 8
D. 1
4
E. impossible to determine
12. The neutrons of an atom are
A. always equal to the number of protons in an
atom.
, B. found in the nucleus.
C. used to determine atomic number.
D. positively charged.
E. moving in pathways called orbitals.
13. Which of the following represents an exchange reaction?
A. AB → A + B
B. A + B → AB
C. X + Y → XYD
D. AB + XY ↔ AX + BY
E. None of the choices are correct.
14. Jim needs to prepare one liter of a 4% NaCl solution. How much NaCl should he weigh out?
A. 0.4 grams
B. 4.
grams C.
40 grams D.
400 grams
E. None of the choices are correct.
15. How many times more acidic is a solution with a pH of 3 than a solution with a pH of 6?
A.
3
B. 1
0
C. 100 0 D.
3
6 E
.6
3
16. Which of the following carbohydrates is found in dairy?
A. lactose
B. sucrose
C. maltose
D. glucose
E. fructose
17. Which of the following is the stored form of carbohydrates in animals?
A. glycogen
B. maltose C. starc h
D. cellulose
E. galactose
18. All of the following are correct about triglycerides, except
A. they are insoluble in water.
B. they are a concentrated source of energy.
C. when they are unsaturated they are solid.
, D. they dissolve in nonpolar solvents.
E. they are digested by lipases.
19. The type of chemical bond linking amino acids together is a(n)
A. glycosidic bond.
B. peptide bond. C. ester bond. D. ionic bond. E. hydrogen bond.
20. The a helix and b-pleated sheet are examples of
A. primary structure.
B. secondary structure. C.
tertiary
structure. D.
quaternary
structure. E. gamma
structures.
21. The polynucleotide strands of DNA are linked along their length by __________ bonds between the bases.
A. covalent
B. ionic
C. Van der Waals D. doubl e
E. hydroge n
22. Which of the following examples are NOT hydrophobic?
A. Glucos e
B. Vegetable oil
C. Butter
D. Cholesterol
E. Choices B, C, and D are correct
23. A covalent bond is formed between an anion and a cation.
True False
24. Electrons that participate in chemical bonding are typically located closest to the nucleus.
True False
25. Only charged atoms can form ionic bonds.
True False
26. Water molecules are nonpolar molecules.
True False
1. Anything that occupies space and has mass is called
A. an
electron.
Foundations in
Microbiology 8thEditio
Chapter 02 Testbank
Student: ___________________________________________________________________________
, Test Bank For Talaro's Foundations in Microbiology
Test Bank For Talaro's Foundations in Microbiology
8. A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution. If chemical analysis was
performed to identify the contents of each beaker, which of the following would be found in the beaker of DNA but not in the
beaker with glucose?
A. amino acids
B. hydrogen and oxygen atoms
C. nitrogen and phosphorus
D. fatty acids
E. carbon atoms
9. C6H12O6 + C6H12O6→ C12 H22O11 + H2O represents
A. formation of a peptide bond.
B. a decomposition reaction.
C. denaturatio
n.
D. formation of a polysaccharide. E.
dehydration synthesis.
10. The atomic number equals the number of __________ an atom possesses.
A. neutrons
B. protons
C. protons plus electrons
D. neutrons plus protons
E. electrons plus protons
11. If carbon has an atomic number of 6 and an atomic mass of 14, how many neutrons does it have?
A. 6
B. 7
C. 8
D. 1
4
E. impossible to determine
12. The neutrons of an atom are
A. always equal to the number of protons in an
atom.
, B. found in the nucleus.
C. used to determine atomic number.
D. positively charged.
E. moving in pathways called orbitals.
13. Which of the following represents an exchange reaction?
A. AB → A + B
B. A + B → AB
C. X + Y → XYD
D. AB + XY ↔ AX + BY
E. None of the choices are correct.
14. Jim needs to prepare one liter of a 4% NaCl solution. How much NaCl should he weigh out?
A. 0.4 grams
B. 4.
grams C.
40 grams D.
400 grams
E. None of the choices are correct.
15. How many times more acidic is a solution with a pH of 3 than a solution with a pH of 6?
A.
3
B. 1
0
C. 100 0 D.
3
6 E
.6
3
16. Which of the following carbohydrates is found in dairy?
A. lactose
B. sucrose
C. maltose
D. glucose
E. fructose
17. Which of the following is the stored form of carbohydrates in animals?
A. glycogen
B. maltose C. starc h
D. cellulose
E. galactose
18. All of the following are correct about triglycerides, except
A. they are insoluble in water.
B. they are a concentrated source of energy.
C. when they are unsaturated they are solid.
, D. they dissolve in nonpolar solvents.
E. they are digested by lipases.
19. The type of chemical bond linking amino acids together is a(n)
A. glycosidic bond.
B. peptide bond. C. ester bond. D. ionic bond. E. hydrogen bond.
20. The a helix and b-pleated sheet are examples of
A. primary structure.
B. secondary structure. C.
tertiary
structure. D.
quaternary
structure. E. gamma
structures.
21. The polynucleotide strands of DNA are linked along their length by __________ bonds between the bases.
A. covalent
B. ionic
C. Van der Waals D. doubl e
E. hydroge n
22. Which of the following examples are NOT hydrophobic?
A. Glucos e
B. Vegetable oil
C. Butter
D. Cholesterol
E. Choices B, C, and D are correct
23. A covalent bond is formed between an anion and a cation.
True False
24. Electrons that participate in chemical bonding are typically located closest to the nucleus.
True False
25. Only charged atoms can form ionic bonds.
True False
26. Water molecules are nonpolar molecules.
True False
1. Anything that occupies space and has mass is called
A. an
electron.
