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