, CLICK HERE p
Multiple Choice Questions p p
1. Cellular foundations p
Pages: 3-4 Difficulty: 1 Ans: C
p p p p
In a bacterial cell, the DNA is in the:
p p p p p p p p
A) cell envelope. p
B) cell membrane. p
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellular foundations p
Page: 4 Difficulty: 1 Ans: E
p p p
A major change occurring in the evolution of eukaryotes from prokaryotes was the develo
p p p p p p p p p p p p p
A) DNA.
B) photosynthetic capability. p
C) plasma membranes. p
D) ribosomes.
E) the nucleus. p
3. Cellular foundations p
Page: 4 Difficulty: 1 Ans: B
p p p
In eukaryotes, the nucleus is enclosed by a double membrane called the:
p p p p p p p p p p p
A) cell membrane. p
B) nuclear envelope. p @thebo
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellular foundations p
Page: 4 Difficulty: 1 Ans: C
p p p
The dimensions of living cells are limited, on the lower end by the minimum number o
p p p p p p p p p p p p p p p
necessary for function, and on the upper end by the rate of diffusion of solutes such a
p p p p p p p p p p p p p p p p p
Except for highly elongated cells, they usually have lengths and diameters in the range o
p p p p p p p p p p p p p p
A) 0.1 µm to 10 µm.
p p p p
B) 0.3 µm to 30 µm.
p p p p
C) 0.3 µm to 100 µm.
p p p p
D) 1 µm to 100 µm.
p p p p
,2
5. Cellular foundations
p
Page: 5 p Difficulty: 2 Ans: B p p
The bacterium E. coli requires simple organic molecules for growth and energy—it is the
p p p p p p p p p p p p p
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
6. Cellular foundations
p
Page: 10 Difficulty: 2 Ans: B
p p p
Which one of the following has the cellular components arranged in order of increasing s
p p p p p p p p p p p p p p
A) Amino acid < protein < mitochondrion < ribosome
p p p p p p p
B) Amino acid < protein < ribosome < mitochondrion
p p p p p p p
C) Amino acid < ribosome < protein < mitochondrion
p p p p p p p
D) Protein < amino acid < mitochondrion < ribosome
p p p p p p p
E) Protein < ribosome < mitochondrion < amino acid
p p p p p p p
7. Cellular foundations
p
Page: 11 Difficulty: 2 Ans: A
p p p
The three-dimensional structure of macromolecules is formed and maintained primarily
p p p p p p p p p
noncovalent interactions. Which one of the following is not considered a noncovalent i
p p p p p p p p p p p p p
A) carbon-carbon bonds p
B) hydrogen bonds p
C) hydrophobic interactions p
D) ionic interactions
p
E) van der Waals interactions
p p p
8. Chemical foundations p
Page: 12 Difficulty: 2 Ans: E
p p p
Which one of the following is not among the four most abundant elements in living orga
p p p p p p p p p p p p p p p
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
E) Phosphorus
9. Chemical foundations p
Page: 13 Difficulty: 1 Ans: B
p p p
The four covalent bonds in methane (CH 4) are arranged around carbon to give which on
p p p p p p p p p p p p p p p
following geometries?
p p
A) linear
, 10. Chemical foundations p
Page: 14 Difficulty: 1 Ans: B
p p p
What functional groups are present on this molecule?
p p p p p p p
A) ether and aldehyde
p p
B) hydroxyl and aldehyde p p
C) hydroxyl and carboxylic acidp p p
D) hydroxyl and ester p p
E) hydroxyl and ketone p p
11. Chemical foundations p
Page: 16 Difficulty: 1 Ans: D
p p p
The macromolecules that serve in the storage and transmission of genetic information are
p p p p p p p p p p p p
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. p
E) proteins.
12. Chemical foundations p
Page: 17 Difficulty: 1 Ans: D
p p p
Stereoisomers that are nonsuperimposable mirror images of each other are known as:
p p p p p p p p p p p
A) anomers.
B) cis-trans isomers. p
C) diastereoisomers.
D) enantiomers.
E) geometric isomers. p
13. Chemical foundations p
Page: 20 Difficulty: 3 Ans: E
p p p
The enzyme fumarase catalyzes the reversible hydration of fumaric acid to l-malate, bu
p p p p p p p p p p p p
catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an examp
p p p p p p p p p p p p p p p p
A) biological activity. p
B) chiral activity.
p
C) racemization.
D) stereoisomerization.
E) stereospecificity.
Multiple Choice Questions p p
1. Cellular foundations p
Pages: 3-4 Difficulty: 1 Ans: C
p p p p
In a bacterial cell, the DNA is in the:
p p p p p p p p
A) cell envelope. p
B) cell membrane. p
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellular foundations p
Page: 4 Difficulty: 1 Ans: E
p p p
A major change occurring in the evolution of eukaryotes from prokaryotes was the develo
p p p p p p p p p p p p p
A) DNA.
B) photosynthetic capability. p
C) plasma membranes. p
D) ribosomes.
E) the nucleus. p
3. Cellular foundations p
Page: 4 Difficulty: 1 Ans: B
p p p
In eukaryotes, the nucleus is enclosed by a double membrane called the:
p p p p p p p p p p p
A) cell membrane. p
B) nuclear envelope. p @thebo
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellular foundations p
Page: 4 Difficulty: 1 Ans: C
p p p
The dimensions of living cells are limited, on the lower end by the minimum number o
p p p p p p p p p p p p p p p
necessary for function, and on the upper end by the rate of diffusion of solutes such a
p p p p p p p p p p p p p p p p p
Except for highly elongated cells, they usually have lengths and diameters in the range o
p p p p p p p p p p p p p p
A) 0.1 µm to 10 µm.
p p p p
B) 0.3 µm to 30 µm.
p p p p
C) 0.3 µm to 100 µm.
p p p p
D) 1 µm to 100 µm.
p p p p
,2
5. Cellular foundations
p
Page: 5 p Difficulty: 2 Ans: B p p
The bacterium E. coli requires simple organic molecules for growth and energy—it is the
p p p p p p p p p p p p p
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
6. Cellular foundations
p
Page: 10 Difficulty: 2 Ans: B
p p p
Which one of the following has the cellular components arranged in order of increasing s
p p p p p p p p p p p p p p
A) Amino acid < protein < mitochondrion < ribosome
p p p p p p p
B) Amino acid < protein < ribosome < mitochondrion
p p p p p p p
C) Amino acid < ribosome < protein < mitochondrion
p p p p p p p
D) Protein < amino acid < mitochondrion < ribosome
p p p p p p p
E) Protein < ribosome < mitochondrion < amino acid
p p p p p p p
7. Cellular foundations
p
Page: 11 Difficulty: 2 Ans: A
p p p
The three-dimensional structure of macromolecules is formed and maintained primarily
p p p p p p p p p
noncovalent interactions. Which one of the following is not considered a noncovalent i
p p p p p p p p p p p p p
A) carbon-carbon bonds p
B) hydrogen bonds p
C) hydrophobic interactions p
D) ionic interactions
p
E) van der Waals interactions
p p p
8. Chemical foundations p
Page: 12 Difficulty: 2 Ans: E
p p p
Which one of the following is not among the four most abundant elements in living orga
p p p p p p p p p p p p p p p
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
E) Phosphorus
9. Chemical foundations p
Page: 13 Difficulty: 1 Ans: B
p p p
The four covalent bonds in methane (CH 4) are arranged around carbon to give which on
p p p p p p p p p p p p p p p
following geometries?
p p
A) linear
, 10. Chemical foundations p
Page: 14 Difficulty: 1 Ans: B
p p p
What functional groups are present on this molecule?
p p p p p p p
A) ether and aldehyde
p p
B) hydroxyl and aldehyde p p
C) hydroxyl and carboxylic acidp p p
D) hydroxyl and ester p p
E) hydroxyl and ketone p p
11. Chemical foundations p
Page: 16 Difficulty: 1 Ans: D
p p p
The macromolecules that serve in the storage and transmission of genetic information are
p p p p p p p p p p p p
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. p
E) proteins.
12. Chemical foundations p
Page: 17 Difficulty: 1 Ans: D
p p p
Stereoisomers that are nonsuperimposable mirror images of each other are known as:
p p p p p p p p p p p
A) anomers.
B) cis-trans isomers. p
C) diastereoisomers.
D) enantiomers.
E) geometric isomers. p
13. Chemical foundations p
Page: 20 Difficulty: 3 Ans: E
p p p
The enzyme fumarase catalyzes the reversible hydration of fumaric acid to l-malate, bu
p p p p p p p p p p p p
catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an examp
p p p p p p p p p p p p p p p p
A) biological activity. p
B) chiral activity.
p
C) racemization.
D) stereoisomerization.
E) stereospecificity.
