MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
1. Which of these is considered to be the smallest unit of life?
a) the nucleus
b) the mitochondrion
c)a plasmid
d) the cell
e) a prion: d) The smallest unit of life is *the cell*.
2. The
study of microbiology includes all of the following EXCEPT .
a) plants
b) viruses
c) bacteria
d) fungi
e) algae: a) The study of microbiology includes all of the following EXCEPT *plants*.
3. What percent of the dry weight of the cell is composed of DNA?
a) 2 - 5
b) 12 -15
c)25 - 30
d) 35 -40
e) 50 - 55: a) *2-5* % of the dry weight of the cell is composed of DNA
4. What are the three Domains of life?
a) Monera, Animals, and Plants
b) Bacteria, Archaea, and Eukarya
c) Prokaryote, Eukaryote, and Fungi
, MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
d) Animals, Plants, and Bacteria
e)Prokaryote, Eukaryote, Archaea: b) *Bacteria, Achaea, and Eukarya* are the three Domains
of life.
5. Which of the characteristics of life is not displayed by any individual
organ-ism?
a) metabolism
b) growth
, MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
c) reproduction
d) evolution
e) response
f) homeostasis: d) *Evolution* is NOT a characteristic of life displayed by any individual organism.
6. Viruses are considered "nonliving" for all of the following reasons
EXCEPT that they:
a) need a host cell for replication.
b) are metabolically inert.
c) possess DNA that can evolve.
d) do not maintain internal homeostasis.
e) are not responsive to environmental changes.: c) Viruses are considered
"nonliving" for
all of the following reasons EXCEPT that they *possess DNA that can evolve*.
7. Which is a macromolecular difference between the Domains
Bacteria and Archaea?
a) Archaea contain a nucleus and Bacteria do not.
b) Bacteria contain DNA and Archaea do not.
c) Bacteria contain a plasma membrane and Archaea do not.
d) Bacteria cell wall contains peptidoglycan and the Archaea cell wall
does not.
e) Archaea contain multiple types of RNA polymerase and Bacteria has only
one type.: d) A macrobolecular ditterence between the Domains Bacteria and Archaea is that
*Bacteria cell wall
, MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
contains peptidoglycan and the Archaea cell wall does not*.
8. The size and shapes of Archaean cells suggest relatedness to:
a) Bacteria
b) Prokaryotes
c) Eukaryotes
d) All other life forms
e) No other life forms; their sizes and shapes are unique: a) the size and shapes of
Archaean cells suggest relatedness to *Bacteria*
1. Which of these is considered to be the smallest unit of life?
a) the nucleus
b) the mitochondrion
c)a plasmid
d) the cell
e) a prion: d) The smallest unit of life is *the cell*.
2. The
study of microbiology includes all of the following EXCEPT .
a) plants
b) viruses
c) bacteria
d) fungi
e) algae: a) The study of microbiology includes all of the following EXCEPT *plants*.
3. What percent of the dry weight of the cell is composed of DNA?
a) 2 - 5
b) 12 -15
c)25 - 30
d) 35 -40
e) 50 - 55: a) *2-5* % of the dry weight of the cell is composed of DNA
4. What are the three Domains of life?
a) Monera, Animals, and Plants
b) Bacteria, Archaea, and Eukarya
c) Prokaryote, Eukaryote, and Fungi
, MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
d) Animals, Plants, and Bacteria
e)Prokaryote, Eukaryote, Archaea: b) *Bacteria, Achaea, and Eukarya* are the three Domains
of life.
5. Which of the characteristics of life is not displayed by any individual
organ-ism?
a) metabolism
b) growth
, MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
c) reproduction
d) evolution
e) response
f) homeostasis: d) *Evolution* is NOT a characteristic of life displayed by any individual organism.
6. Viruses are considered "nonliving" for all of the following reasons
EXCEPT that they:
a) need a host cell for replication.
b) are metabolically inert.
c) possess DNA that can evolve.
d) do not maintain internal homeostasis.
e) are not responsive to environmental changes.: c) Viruses are considered
"nonliving" for
all of the following reasons EXCEPT that they *possess DNA that can evolve*.
7. Which is a macromolecular difference between the Domains
Bacteria and Archaea?
a) Archaea contain a nucleus and Bacteria do not.
b) Bacteria contain DNA and Archaea do not.
c) Bacteria contain a plasma membrane and Archaea do not.
d) Bacteria cell wall contains peptidoglycan and the Archaea cell wall
does not.
e) Archaea contain multiple types of RNA polymerase and Bacteria has only
one type.: d) A macrobolecular ditterence between the Domains Bacteria and Archaea is that
*Bacteria cell wall
, MICROBIOLOGY - TEST BANK QUESTIONS AND ANSWERS
contains peptidoglycan and the Archaea cell wall does not*.
8. The size and shapes of Archaean cells suggest relatedness to:
a) Bacteria
b) Prokaryotes
c) Eukaryotes
d) All other life forms
e) No other life forms; their sizes and shapes are unique: a) the size and shapes of
Archaean cells suggest relatedness to *Bacteria*
