m j
, Test Bank: Lehninger Principles of Biochemistry, 8th
mj mj mj mj mj mj
Edition, David L. Nelson Chapters 1-28.
mj mj mj mj mj mj
1. In a bacterial cell, the DNA is in
mj mj mj mj mj mj mj
the:
mj
A) cell envelope. m j
B) cell membrane. m j
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was
mj mj mj mj mj mj mj mj mj mj mj
m the j
development of: m j
A) DNA.
B) photosynthetic capability. m j
C) plasma membranes. m j
D) ribosomes.
E) the nucleus. m j
3. In eukaryotes, the nucleus is enclosed by a double membrane called
mj mj mj mj mj mj mj mj mj mj
the:
m j
A) cell membrane. m j
B) nuclear envelope. m j
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the
mj m j m j m j m j mj m j m j mj m j m j mj
minimum number of biomolecules necessary for function, and on the
m j mj m j m j m j m j m j m j m j m j
upper end by the rate of diffusion of
m j m j m j m j m j mj mj mj
solutes such as oxygen. Except for highly elongated cells, they usually have lengths
mj mj mj mj mj mj mj mj mj mj mj mj
and diameters in the range of:
m j mj mj mj mj mj
A) 0.1 m to 10 m. m j m j m j m j
B) 0.3 m to 30 m. m j m j m j m j
C) 0.3 m to 100 m. m j m j m j m j
D) 1 m to 100 m. m j m j m j m j
E) 1 m to 300 m. m j m j m j m j
Page 2 m j
,5. Which group of single-celled microorganisms has many members found growing
mj mj mj mj mj mj mj mj mj
m in j
extreme environments? m j
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.m j m j m j m j m j
6. The bacterium E. coli requires simple organic molecules for growth and
mj m j mj mj m j mj m j m j m j m j
energy— it is
m j mj mj
therefore a: mj
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
m j m j m j m j m j
A) mitochondria, chromatin, endoplasmic m j m j
reticulum m j
B) peroxisomes, lysosomes, plasma membrane mj m j m j
C) proteasomes, peroxisomes, lysosomes m j m j
D) mitochondria, endoplasmic reticulum, mj mj
peroxisomesmj
E) All of the answers are correct.
m j m j m j m j m j
8. Which list has the cellular components arranged in order of
mj mj mj mj mj mj mj mj mj
INCREASING size?
m j m j
A) amino acid < protein < mitochondrion < ribosome
m j m j m j m j m j m j m j
B) amino acid < protein < ribosome < mitochondrion
m j m j m j m j m j m j m j
C) amino acid < ribosome < protein < mitochondrion
m j m j m j m j m j m j m j
D) protein < amino acid < mitochondrion < ribosome
m j m j m j m j m j m j m j
E) protein < ribosome < mitochondrion < amino acid
m j m j m j m j m j m j m j
9. The three-dimensional structure of macromolecules is formed and maintained
mj mj mj mj mj mj mj mj
primarily through noncovalent interactions. Which one of the following is
mj m j m j m j m j mj mj mj mj m j
NOT considered a
m j mj mj
noncovalent interaction? m j
Page 3 m j
, A) carbon-carbon bonds mj
B) hydrogen bonds m j
C) hydrophobic interactions m j
D) ionic interactions m j
E) van der Waals interactions
m j m j m j
10. Which element is NOT among the four most abundant in living
mj mj mj mj mj mj mj mj mj mj
m organisms?
j
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
11. The four covalent bonds in methane (CH4) are arranged around carbon to
mj m j m j m j m j mj m j m j m j m j mj
give which
m j mj
geometry?
A) linear
B) tetrahedral
C) trigonal bipyramidal mj
D) trigonal planar mj
E) trigonal pyramidal mj
12. What functional groups are present on this
mj mj mj mj mj mj
molecule?
mj
A) ether and aldehyde
mj m j
B) hydroxyl and aldehyde m j m j
C) hydroxyl and carboxylic acidm j mj m j
D) hydroxyl and ester m j m j
E) hydroxyl and ketone m j m j
13. The macromolecules that serve in the storage and transmission of genetic
mj mj mj mj mj mj mj mj mj mj
m information
j
are:
A) carbohydrates.
Page 4 m j