Instant Download with all chapters and Answers
Sample Chapters
*you will get test bank in PDF in best viewable format after buy*
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
1)
Which of the following statements about the atom C is false?
1) _______
A) Its atomic weight is 12.
B) It has 12 neutrons in its nucleus.
C) It has 6 protons in its nucleus.
D) It has 6 electrons orbiting the nucleus.
E) Its atomic number is 6.
Table 2.1
O C H
2) Using the information in Table 2.1, calculate the molecular weight of
ethanol, C2H5OH.
2) _______
A) 46
B) 96
C) 34
D) 33
E) Can’t tell
3) Antacids neutralize acid by the following reaction. Identify the salt.
Mg(OH)2 + 2HCl → MgCl2 + H2O
3) _______
A) HCl
B) Mg(OH)2
C) MgCl2
D) H2O
E) None of the above
4) Which of the following statements is false? 4) _______
A) Water freezes from the top down.
B) Salts readily dissolve in water.
C) Water is a polar molecule.
D) Water molecules are formed by hydrolysis.
E) Water is a part of a dehydration reaction.
5) Which of the following is the type of bond holding and ions in
KI?
5) _______
A) Covalent bond
B) Hydrogen bond
C) Ionic bond
6) Which of the following is the type of bond between molecules of water
in a beaker of water?
6) _______
A) Ionic bond
B) Hydrogen bond
C) Covalent bond
7) What is the type of bond holding hydrogen and oxygen atoms in the
H2O molecule?
7) _______
A) Covalent bond
B) Hydrogen bond
C) Ionic bond
8) Identify the following reaction: Glucose + Fructose → Sucrose + Water 8) _______
A) Dehydration synthesis reaction
B) Reversible reaction
C) Exchange reaction
D) Hydrolysis reaction
E) Ionic reaction
9) Identify the following reaction: Lactose + H2O → Glucose + Galactose 9) _______
A) Exchange reaction
B) Ionic reaction
C) Reversible reaction
D) Hydrolysis reaction
E) Dehydration synthesis reaction
10) Identify the following reaction: HCl + NaHC → NaCl + C 10) ______
A) Hydrolysis reaction
B) Exchange reaction
C) Ionic reaction
D) Reversible reaction
E) Dehydration synthesis reaction
11) Identify the following reaction: OH ⇌ + O 11) ______
A) Ionic reaction
B) Dehydration synthesis reaction
C) Exchange reaction
D) Reversible reaction
E) Hydrolysis reaction
12) Which type of molecule contains the alcohol glycerol? 12) ______
A) Protein B) Lipid
C) Nucleic acid D) Carbohydrate
13) Which type of molecule is composed of (CH2O) units? 13) ______
A) Carbohydrate B) Protein
C) Nucleic acid D) Lipid
14) Which type of molecule contains groups? 14) ______
A) Carbohydrate B) Lipid
C) Protein D) Nucleic acid
15) Which type of molecule NEVER contains a phosphate group? 15) ______
A) Protein B) Carbohydrate
C) Nucleic acid D) Lipid
16) Which of
the
followin
g
statemen
ts about
the atom
O is
false?
16) ___
___
A) It has 8 electrons in its nucleus.
B) It has 8 protons in its nucleus.
C) It has 8 neutrons in its nucleus.
D) Its atomic weight is 16.
E) Its atomic number is 8.
Table 2.1
O C H
17) Using the information in Table 2.1, calculate the number of moles in 92
grams of ethanol, C2H5OH.
17) ______
A) 1
B) 2
C) 3
D) 4
E) Can’t tell
18) The following chemical reaction is used to remove chlorine from water.
What type of reaction is it?
HClO + Na2SO3 → Na2SO4 + HCl
18) ______
A) Reversible synthesis reaction
B) Exchange synthesis reaction
C) Hydrolysis synthesis reaction
D) Ionic synthesis reaction
E) Dehydration synthesis reaction
19) Which of the following pairs is mismatched? 19) ______
A) MgSO4 ⇌ Mg2+ + SO4
2- salt
B) HF ⇌ H+ + F- acid
C) H2SO4 ⇌ 2H+ + SO4
2- acid
D) KH2PO4 ⇌ K+ + H2PO4
– acid
E) NaOH ⇌ Na+ + OH- base
Table 2.2
Refer to these reactions to answer the question below.
20) Which of the following statements about the reactions in Table 2.2 is
false?
20) ______
A) They are reversible reactions.
B) They are ionization reactions.
C) They are dissociation reactions.
D) They are exchange reactions.
E) They occur when the reactants are dissolved in water.
21) What is the type of bond between the hydrogen of one molecule and the
nitrogen of another molecule?
21) ______
A) Covalent bond
B) Hydrogen bond
C) Disulfide bond
D) Ionic bond
E) Hydrophobic bond
22) What is the type of bond between carbon, hydrogen, and oxygen atoms
in organic molecules?
22) ______
A) Hydrogen bond
B) Covalent bond
C) Ionic bond
23) What is the type of bond between ions in salt? 23) ______
A) Hydrogen bond
B) Ionic bond
C) Covalent bond
24) Identify the following reaction: O + ⇌ 24) ______
A) Exchange reaction
B) Dehydration synthesis reaction
C) Reversible reaction
D) Hydrolysis reaction
E) Covalent reaction
25) Identify the following reaction: Glycine + Lysine → Dipeptide + H2O 25) ______
A) Reversible reaction
B) Hydrolysis reaction
C) Exchange reaction
D) Covalent reaction
E) Dehydration synthesis reaction
26) Identify the following reaction: Sucrose + O → Glucose + Fructose 26) ______
A) Reversible reaction
B) Covalent reaction
C) Hydrolysis reaction
D) Exchange reaction
E) Dehydration synthesis reaction
27) Structurally, ATP is most like which type of molecule? 27) ______
A) Nucleic acid B) Lipid
C) Protein D) Carbohydrate
28) What do genes consist of? 28) ______
A) Carbohydrates B) Nucleic acids
C) Lipids D) Proteins
29) Which molecule is composed of a chain of amino acids? 29) ______
A) Protein B) Nucleic acid
C) Carbohydrate D) Lipid
30) Which are the primary molecules making up plasma membranes in
cells?
30) ______
A) Lipids B) Carbohydrates
C) Nucleic acids D) Proteins
31) The antimicrobial drug imidazole inhibits sterol synthesis. This would
most likely interfere with
31) ______
A) Fungal cell walls.
B) Eukaryotic plasma membranes.
C) Bacterial cell walls.
D) Genes.
E) Prokaryotic plasma membranes.
Figure 2.1
32) In Figure 2.1, which is an alcohol? 32) ______
A) a B) b C) c D) d E) e
33) Which compound in Figure 2.1 is an ester? 33) ______
A) a B) b C) c D) d E) e
34) Which compound in Figure 2.1 is an organic acid? 34) ______
A) a B) b C) c D) d E) e
Figure 2.2
35) Use Figure 2.2 to answer the following question. Archaea differ from
bacteria in the composition of the cell membrane lipids. Archaea have
ether-bonded lipids, shown in part ________ of Figure 2.2, and bacteria
have ester-bonded lipids, shown in part ________ of Figure 2.2.
35) ______
A) c; d B) b; a C) d; c D) b; c E) a; d
Figure 2.3
36) What kind of bond is at the arrow in Figure 2.3? 36) ______
A) Hydrogen bond
B) Peptide bond
C) Ionic bond
D) Single covalent bond
E) Double covalent bond
Figure 2.4
37) What kind of bond is at the arrow in Figure 2.4? 37) ______
A) Peptide bond
B) Double covalent bond
C) Disulfide bridge
D) Ionic bond
E) Hydrogen bond
38) An E. coli culture that has been growing at 37°C is moved to 25°C.
Which of the following changes must be made in its plasma membrane?
38) ______
A) The viscosity must increase.
B) The number of phosphate groups must increase.
C) The number of saturated chains must increase.
D) The number of unsaturated chains must increase.
E) No changes are necessary.
39) Assume Saccharomyces cerevisiae is grown in a nutrient medium
containing the radioisotope 35S. After a 48-hour incubation, the 35S
would most likely be found in the S. cerevisiae’s
39) ______
A) Lipids.
B) Nucleic acids.
C) Carbohydrates.
D) Water.
E) Proteins.
40) Assume Saccharomyces cerevisiae is grown in a nutrient medium
containing the radioisotope 32P. After a 48-hour incubation, the 32P
would most likely be found in the S. cerevisiae’s
40) ______
A) Proteins.
B) Cell wall.
C) Plasma membrane.
D) Carbohydrates.
E) Water.
41) Starch, dextran, glycogen, and cellulose are polymers of 41) ______
A) Amino acids.
B) Glucose.
C) Nucleic acids.
D) Acids.
E) Fatty acids.
42) Which of the following is a base? 42) ______
A) NaOH → Na+ + OHB) H2CO
C) C2H5OCOOH → H+ + C2H5OCO
D) C2H5OH
E) H2O → H+ + OH43) Two glucose molecules are combined to make a maltose molecule. What
is the chemical formula for maltose?
43) ______
A) C12H22O11
B) C6H12O6
C) C3H6O3
D) C12H24O12
E) C12H23O10
44) Desulfovibrio bacteria can perform the following reaction: S6- → S2-.
These bacteria are
44) ______
A) Synthesizing sulfur. B) Oxidizing sulfur.
C) Reducing sulfur. D) Hydrolyzing sulfur.
45) Oil-degrading bacteria are naturally present in the environment but
cannot degrade an oil spill fast enough to avoid ecological damage.
How can the actions of these bacteria be sped up?
45) ______
A) Provide sugar as a carbon source.
B) Provide nitrogen and phosphorus.
C) Add NaCl.
D) Add water.
E) Provide oil for them.
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
46) Describe how the properties of phospholipids make these molecules well suited for
plasma membranes.
Figure 2.5
47) Use Figure 2.5 to answer the following question. Starch, cellulose, dextran, and
glycogen are polysaccharides. How are they similar? To what are their different
properties due? Why can’t an enzyme that hydrolyzes starch degrade cellulose?
1) B
2) A
3) C
4) D
5) C
6) B
7) A
8) A
9) D
10) B
11) D
12) B
13) A
14) C
15) B
16) A
17) B
18) B
19) D
20) D
21) B
22) B
23) B
24) A
25) D
26) C
27) A
28) B
29) A
30) A
31) B
32) C
33) D
34) A
35) B
36) A
37) A
38) D
39) E
40) C
41) B
42) A
43) A
44) B
45) B
46)
47)