BIOL 1002 REAL EXAM 2025 PRACTICE QUESTIONS
AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP
WITH 300 EXAM PRACTICE QUESTIONS AND
CORRECT VERIFIED ANSWERS
Bacterial cell walls contain ________, which makes them different from other organisms.
a) celluloses
b)starch
c) chitin
d) pectin
e) peptidoglycan
e) peptidoglycan
While examining a hot spring, you find something you haven't seen before. It has a cell membrane,
but the cell wall lacks peptidoglycan. It contains both DNA and RNA. The DNA is circular. It would be
classified as a(n)
a) fungus
b) archaea
c) prion
d) bacterium
d) virus
b) archaea
What differentiates gram-positive bacteria from gram-negative bacteria?
a) The appearance of colonies
b) The means of locomotion
c) Nutrient requirements
d) The use of oxygen
e) The way the cell wall stains
e) The way the cell wall stains
,In which of these environments would you normally find prokaryotes?
a) A single drop of seawater
b) An animal's intestinal tract
c) A spoonful of soil
d) Human skin
e) All of the above
e) All of the above
In terms of abundance, which of the following is Earth's predominant form of life?
a) prokaryotes
b) plants
c) reptiles
d) archaea
e) animals
a) prokaryotes
What is a major difference between the domains, Bacteria and Archaea?
a) the use of RNA polymerase for RNA synthesis
b) the presence of a plasma membrane
c) the use of ribosomes in protein synthesis
d) DNA as the genetic material
e) peptidoglycan in the cell wall of bacteria but not the archaea
e) peptidoglycan in the cell wall of bacteria but not the archaea
(Peptidoglycan is a polysaccharide that strengthens the cell wall of bacteria and is not found in
archaea)
,The rapid and inexpensive routine laboratory procedure used to classify the bacterial world into two
major groups is called the __________.
a) Gram stain
b) use of electrophoresis to distinguish unique proteins
c) DNA sequencing
d) centrifugation
e) microscopy
a) gram stain
Which of the following genera contains spherically shaped bacteria?
a) Bacillus
b) Micrococcus
c) Treponema
d) Escherichia
e) Borrelia
b) Micrococcus
Life as we know it cannot flourish on the moon but it might be possible for it to survive. What life
form on Earth might survive on the moon?
a) archaea
b) bacterial endospores
c) reptiles
d) spherical bacteria
d) protists
b) bacterial endospores
(Dormant endospores can survive even extreme environmental condition)
Which of the following statements best describes the end result of bacterial conjugation?
, a) One cell has lost a plasmid, while the other cell has gained one
b) The two cells have had an equal exchange of plasmids
c) One cell has given a copy of a plasmid to another cell and kept one copy for itself
d) One cell has lost a chromosome, while the other has gained one.
c) One cell has given a copy of a plasmid to another cell and kept one copy for itself
From which cell does the sex pilus originate during bacterial conjugation?
a) The donor cell
b) The recipient cell
c) Both the donor cell and the recipient cell
a) The donor cell
We have an expert-written solution to this problem!
T/F: During bacterial conjugation, the recipient cell receives a single-stranded loop of DNA
T
(One strand of the plasmid enters the recipient cell; this strand must be replicated in the recipient
cell to produce a double-stranded plasmid that can replicate independently of the bacterial
chromosome)
We have an expert-written solution to this problem!
Which structure helps bacteria to attach within the tissues that they will infect?
a) Nucleoid
b) Capsule
c) Cell wall
d) Flagella
b) capsule
(The gelatinous capsule that covers some bacteria helps them attach to the tissues that they will
infect)
AND CORRECT ANSWERS/ BIOLOGY 1002 LSU PREP
WITH 300 EXAM PRACTICE QUESTIONS AND
CORRECT VERIFIED ANSWERS
Bacterial cell walls contain ________, which makes them different from other organisms.
a) celluloses
b)starch
c) chitin
d) pectin
e) peptidoglycan
e) peptidoglycan
While examining a hot spring, you find something you haven't seen before. It has a cell membrane,
but the cell wall lacks peptidoglycan. It contains both DNA and RNA. The DNA is circular. It would be
classified as a(n)
a) fungus
b) archaea
c) prion
d) bacterium
d) virus
b) archaea
What differentiates gram-positive bacteria from gram-negative bacteria?
a) The appearance of colonies
b) The means of locomotion
c) Nutrient requirements
d) The use of oxygen
e) The way the cell wall stains
e) The way the cell wall stains
,In which of these environments would you normally find prokaryotes?
a) A single drop of seawater
b) An animal's intestinal tract
c) A spoonful of soil
d) Human skin
e) All of the above
e) All of the above
In terms of abundance, which of the following is Earth's predominant form of life?
a) prokaryotes
b) plants
c) reptiles
d) archaea
e) animals
a) prokaryotes
What is a major difference between the domains, Bacteria and Archaea?
a) the use of RNA polymerase for RNA synthesis
b) the presence of a plasma membrane
c) the use of ribosomes in protein synthesis
d) DNA as the genetic material
e) peptidoglycan in the cell wall of bacteria but not the archaea
e) peptidoglycan in the cell wall of bacteria but not the archaea
(Peptidoglycan is a polysaccharide that strengthens the cell wall of bacteria and is not found in
archaea)
,The rapid and inexpensive routine laboratory procedure used to classify the bacterial world into two
major groups is called the __________.
a) Gram stain
b) use of electrophoresis to distinguish unique proteins
c) DNA sequencing
d) centrifugation
e) microscopy
a) gram stain
Which of the following genera contains spherically shaped bacteria?
a) Bacillus
b) Micrococcus
c) Treponema
d) Escherichia
e) Borrelia
b) Micrococcus
Life as we know it cannot flourish on the moon but it might be possible for it to survive. What life
form on Earth might survive on the moon?
a) archaea
b) bacterial endospores
c) reptiles
d) spherical bacteria
d) protists
b) bacterial endospores
(Dormant endospores can survive even extreme environmental condition)
Which of the following statements best describes the end result of bacterial conjugation?
, a) One cell has lost a plasmid, while the other cell has gained one
b) The two cells have had an equal exchange of plasmids
c) One cell has given a copy of a plasmid to another cell and kept one copy for itself
d) One cell has lost a chromosome, while the other has gained one.
c) One cell has given a copy of a plasmid to another cell and kept one copy for itself
From which cell does the sex pilus originate during bacterial conjugation?
a) The donor cell
b) The recipient cell
c) Both the donor cell and the recipient cell
a) The donor cell
We have an expert-written solution to this problem!
T/F: During bacterial conjugation, the recipient cell receives a single-stranded loop of DNA
T
(One strand of the plasmid enters the recipient cell; this strand must be replicated in the recipient
cell to produce a double-stranded plasmid that can replicate independently of the bacterial
chromosome)
We have an expert-written solution to this problem!
Which structure helps bacteria to attach within the tissues that they will infect?
a) Nucleoid
b) Capsule
c) Cell wall
d) Flagella
b) capsule
(The gelatinous capsule that covers some bacteria helps them attach to the tissues that they will
infect)
