1
Page 1
cx
,1. In a bacterial cell, the DNA is in the:
cx cx cx cx cx cx cx cx
A) cell envelope. cx
B) cell membrane. cx
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was th
cx cx cx cx cx cx cx cx cx cx cx cx
e development of:
cx cx
A) DNA.
B) photosynthetic capability. cx
C) plasma membranes. cx
D) ribosomes.
E) the nucleus. cx
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
cx cx cx cx cx cx cx cx cx cx cx
A) cell membrane. cx
B) nuclear envelope. cx
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number
cx cx cx cx cx cx cx cx cx cx cx cx cx cx cx
of biomolecules necessary for function, and on the upper end by the rate of diffusion
cx cx cx cx cx cx cx cx cx cx cx cx cx cx cx
of solutes such as oxygen. Except for highly elongated cells, they usually have lengths
cx cx cx cx cx cx cx cx cx cx cx cx cx c
and diameters in the range of:
x cx cx cx cx cx
A) 0.1 m to 10 m. cx cx cx cx
B) 0.3 m to 30 m. cx cx cx cx
C) 0.3 m to 100 m. cx cx cx cx
D) 1 m to 100 m. cx cx cx cx
E) 1 m to 300 m. cx cx cx cx
5. Which group of single-
cx cx cx
celled microorganisms has many members found growing in extreme environment
cx cx cx cx cx cx cx cx cx
s?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
cx cx cx cx cx
Page 2 cx
,2
6. The bacterium E. coli requires simple organic molecules for growth and energy—
cx cx cx cx cx cx cx cx cx cx cx
it is therefore a:
cx cx cx
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
cx cx cx cx cx
A) mitochondria, chromatin, endoplasmic reticulum cx cx cx
B) peroxisomes, lysosomes, plasma membrane cx cx cx
C) proteasomes, peroxisomes, lysosomes cx cx
D) mitochondria, endoplasmic reticulum, peroxisomes cx cx cx
E) All of the answers are correct.
cx cx cx cx cx
8. Which list has the cellular components arranged in order of INCREASING size?
cx cx cx cx cx cx cx cx cx cx cx
A) amino acid < protein < mitochondrion < ribosome
cx cx cx cx cx cx cx
B) amino acid < protein < ribosome < mitochondrion
cx cx cx cx cx cx cx
C) amino acid < ribosome < protein < mitochondrion
cx cx cx cx cx cx cx
D) protein < amino acid < mitochondrion < ribosome
cx cx cx cx cx cx cx
E) protein < ribosome < mitochondrion < amino acid
cx cx cx cx cx cx cx
9. The three-
cx
dimensional structure of macromolecules is formed and maintained primarily through
cx cx cx cx cx cx cx cx cx cx
noncovalent interactions. Which one of the following is NOT considered a noncovale
cx cx cx cx cx cx cx cx cx cx cx
nt interaction?
cx
A) carbon-carbon bonds cx
B) hydrogen bonds cx
C) hydrophobic interactions cx
D) ionic interactions cx
E) van der Waals interactions
cx cx cx
10. Which element is NOT among the four most abundant in living organisms?
cx cx cx cx cx cx cx cx cx cx cx
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page 3 cx
, 3
11. The four covalent bonds in methane (CH4) are arranged around carbon to give whic
cx cx cx cx cx cx cx cx cx cx cx cx cx
h geometry?
cx
A) linear
B) tetrahedral
C) trigonal bipyramidal cx
D) trigonal planar cx
E) trigonal pyramidal cx
12. What functional groups are present on this molecule?
cx cx cx cx cx cx cx
A) ether and aldehyde
cx cx
B) hydroxyl and aldehyde cx cx
C) hydroxyl and carboxylic acid
cx cx cx
D) hydroxyl and ester cx cx
E) hydroxyl and ketone cx cx
13. The macromolecules that serve in the storage and transmission of genetic informatio
cx cx cx cx cx cx cx cx cx cx cx
n are:
cx
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. cx
E) proteins.
14. Stereoisomers that are nonsuperimposable mirror images of each other are known as:
cx cx cx cx cx cx cx cx cx cx cx
A) anomers.
B) cis-trans isomers. cx
C) diastereoisomers.
D) enantiomers.
E) geometric isomers. cx
15. The catalog of all proteins functioning in a cell is the:
cx cx cx cx cx cx cx cx cx cx
A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.
Page 4 cx
Page 1
cx
,1. In a bacterial cell, the DNA is in the:
cx cx cx cx cx cx cx cx
A) cell envelope. cx
B) cell membrane. cx
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was th
cx cx cx cx cx cx cx cx cx cx cx cx
e development of:
cx cx
A) DNA.
B) photosynthetic capability. cx
C) plasma membranes. cx
D) ribosomes.
E) the nucleus. cx
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
cx cx cx cx cx cx cx cx cx cx cx
A) cell membrane. cx
B) nuclear envelope. cx
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number
cx cx cx cx cx cx cx cx cx cx cx cx cx cx cx
of biomolecules necessary for function, and on the upper end by the rate of diffusion
cx cx cx cx cx cx cx cx cx cx cx cx cx cx cx
of solutes such as oxygen. Except for highly elongated cells, they usually have lengths
cx cx cx cx cx cx cx cx cx cx cx cx cx c
and diameters in the range of:
x cx cx cx cx cx
A) 0.1 m to 10 m. cx cx cx cx
B) 0.3 m to 30 m. cx cx cx cx
C) 0.3 m to 100 m. cx cx cx cx
D) 1 m to 100 m. cx cx cx cx
E) 1 m to 300 m. cx cx cx cx
5. Which group of single-
cx cx cx
celled microorganisms has many members found growing in extreme environment
cx cx cx cx cx cx cx cx cx
s?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
cx cx cx cx cx
Page 2 cx
,2
6. The bacterium E. coli requires simple organic molecules for growth and energy—
cx cx cx cx cx cx cx cx cx cx cx
it is therefore a:
cx cx cx
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
cx cx cx cx cx
A) mitochondria, chromatin, endoplasmic reticulum cx cx cx
B) peroxisomes, lysosomes, plasma membrane cx cx cx
C) proteasomes, peroxisomes, lysosomes cx cx
D) mitochondria, endoplasmic reticulum, peroxisomes cx cx cx
E) All of the answers are correct.
cx cx cx cx cx
8. Which list has the cellular components arranged in order of INCREASING size?
cx cx cx cx cx cx cx cx cx cx cx
A) amino acid < protein < mitochondrion < ribosome
cx cx cx cx cx cx cx
B) amino acid < protein < ribosome < mitochondrion
cx cx cx cx cx cx cx
C) amino acid < ribosome < protein < mitochondrion
cx cx cx cx cx cx cx
D) protein < amino acid < mitochondrion < ribosome
cx cx cx cx cx cx cx
E) protein < ribosome < mitochondrion < amino acid
cx cx cx cx cx cx cx
9. The three-
cx
dimensional structure of macromolecules is formed and maintained primarily through
cx cx cx cx cx cx cx cx cx cx
noncovalent interactions. Which one of the following is NOT considered a noncovale
cx cx cx cx cx cx cx cx cx cx cx
nt interaction?
cx
A) carbon-carbon bonds cx
B) hydrogen bonds cx
C) hydrophobic interactions cx
D) ionic interactions cx
E) van der Waals interactions
cx cx cx
10. Which element is NOT among the four most abundant in living organisms?
cx cx cx cx cx cx cx cx cx cx cx
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page 3 cx
, 3
11. The four covalent bonds in methane (CH4) are arranged around carbon to give whic
cx cx cx cx cx cx cx cx cx cx cx cx cx
h geometry?
cx
A) linear
B) tetrahedral
C) trigonal bipyramidal cx
D) trigonal planar cx
E) trigonal pyramidal cx
12. What functional groups are present on this molecule?
cx cx cx cx cx cx cx
A) ether and aldehyde
cx cx
B) hydroxyl and aldehyde cx cx
C) hydroxyl and carboxylic acid
cx cx cx
D) hydroxyl and ester cx cx
E) hydroxyl and ketone cx cx
13. The macromolecules that serve in the storage and transmission of genetic informatio
cx cx cx cx cx cx cx cx cx cx cx
n are:
cx
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. cx
E) proteins.
14. Stereoisomers that are nonsuperimposable mirror images of each other are known as:
cx cx cx cx cx cx cx cx cx cx cx
A) anomers.
B) cis-trans isomers. cx
C) diastereoisomers.
D) enantiomers.
E) geometric isomers. cx
15. The catalog of all proteins functioning in a cell is the:
cx cx cx cx cx cx cx cx cx cx
A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.
Page 4 cx
