6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
BIOL 2051 ACTUAL EXAM 3 2025-2026 \\ALL POSSIBLE
QUESTIONS AND COMPLETE QUESTIONS AND ACCURATE
DETAILED ANSWERS \VERIFIED ANSWERS \COMPLETE
EXAM ALREADY GRADED A+
Which does NOT happen C and D
during reverse transcription
PCR?
A. Primers anneal (attach)
themselves to each of
the DNA chain
B. The annealed primer is
getting extended with via
action of DNA polymerase
C. Antibody interacts with
antigen
D. cDNA is synthesized
based on RNA template
E. A double strand
separates into two
chains under the
temperature c
Which two important B
nutrient cycles are DO
NOT have a redox nature
(i.e., only
include precipitation and
dissolution, and NO change
in redox state of
elements)?
1/37
,6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
A. Sulfur and Calcium
B. Calcium and Silica
C. Carbon and Silica
D. Nitrogen and Phosphorous
E. Carbon and Nitrogen
Staphylococcus aureus factors E
include all except ___
A. Staphylococcal
superantigen exotoxins
such as toxic shock syndrome
toxin (TSST-1)
B. Exfoliation toxin
C. Hemolysin toxin
D. Coagulase exoenzyme
E. Special toxin that helps it
to support its intracellular
parasite life style
What is NOT true about C
Rubella?
A. Caused by a virus from
a toga virus group
B. Signs and symptoms
are similar to measles,
but milder
C. Vaccine is unavailable
D. Airborne disease
E. Very infectious due to the
fact that viral particles
remains infective for long
periods in dried mucus
2/37
,6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
You are a doctor and you B
encounter a patient with a
characteristic round pitch-
black lesion on his neck
(with surrounding tissue
edema) and fever, who
works with cattle on a daily
bases. You hypothesize
that the person has _________
A. Gas gangrene
B. Cutaneous Anthrax
C. Respiratory Anthrax
D. Chlamydia
E. Zika
Match Antibiotics with their Sulfa drugs
mechanisms of action
Inhibit synthesis of major
metabolite (like folic acid
precursor synthesis)
Match Antibiotics with their Platensimycin
mechanisms of action
Inhibit lipid biosynthesis
Match Antibiotics with their Rifampin
mechanisms of action
Interfere with transcription
Which group of organisms E
perform
ammonification and other
processes by which the
complex organic matter is
decomposed, and major
elements are returned to
their simple state (i.e., NH3,
CO2, N2)?
3/37
, 6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
A. photoautotrophs
B. predacious heterotrophs
C. facultative phototrophs
D. chemolithoautotrophs
E. saprotrophic heterotrophs
Influenza virus is able to C
make huge " leaps" in its
evolution from times to
times by
successfully " jumping" from
an animal host to a human (
such as swine flu) , due to
___________
A. Being dormant
B. Suttle capsid
proteins subunit
modification
C. Genetic shift
D. Genetic drift
E. Gradual variation
Important planktonic group of C
organisms
called foraminifera play
major role as a sink for
calcium, since _.
A. They use Ca/K symport
B. Their nucleus require Ca
C. Their shells made of calcium
carbonate
D. .Their flagellae require Ca
E. Their mitochondria run
on calcium carbonate
4/37
BIOL 2051 ACTUAL EXAM 3 2025-2026 \\ALL POSSIBLE
QUESTIONS AND COMPLETE QUESTIONS AND ACCURATE
DETAILED ANSWERS \VERIFIED ANSWERS \COMPLETE
EXAM ALREADY GRADED A+
Which does NOT happen C and D
during reverse transcription
PCR?
A. Primers anneal (attach)
themselves to each of
the DNA chain
B. The annealed primer is
getting extended with via
action of DNA polymerase
C. Antibody interacts with
antigen
D. cDNA is synthesized
based on RNA template
E. A double strand
separates into two
chains under the
temperature c
Which two important B
nutrient cycles are DO
NOT have a redox nature
(i.e., only
include precipitation and
dissolution, and NO change
in redox state of
elements)?
1/37
,6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
A. Sulfur and Calcium
B. Calcium and Silica
C. Carbon and Silica
D. Nitrogen and Phosphorous
E. Carbon and Nitrogen
Staphylococcus aureus factors E
include all except ___
A. Staphylococcal
superantigen exotoxins
such as toxic shock syndrome
toxin (TSST-1)
B. Exfoliation toxin
C. Hemolysin toxin
D. Coagulase exoenzyme
E. Special toxin that helps it
to support its intracellular
parasite life style
What is NOT true about C
Rubella?
A. Caused by a virus from
a toga virus group
B. Signs and symptoms
are similar to measles,
but milder
C. Vaccine is unavailable
D. Airborne disease
E. Very infectious due to the
fact that viral particles
remains infective for long
periods in dried mucus
2/37
,6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
You are a doctor and you B
encounter a patient with a
characteristic round pitch-
black lesion on his neck
(with surrounding tissue
edema) and fever, who
works with cattle on a daily
bases. You hypothesize
that the person has _________
A. Gas gangrene
B. Cutaneous Anthrax
C. Respiratory Anthrax
D. Chlamydia
E. Zika
Match Antibiotics with their Sulfa drugs
mechanisms of action
Inhibit synthesis of major
metabolite (like folic acid
precursor synthesis)
Match Antibiotics with their Platensimycin
mechanisms of action
Inhibit lipid biosynthesis
Match Antibiotics with their Rifampin
mechanisms of action
Interfere with transcription
Which group of organisms E
perform
ammonification and other
processes by which the
complex organic matter is
decomposed, and major
elements are returned to
their simple state (i.e., NH3,
CO2, N2)?
3/37
, 6/11/25, 12:38 PM BIOL 2051 Exam 3 possible questions
A. photoautotrophs
B. predacious heterotrophs
C. facultative phototrophs
D. chemolithoautotrophs
E. saprotrophic heterotrophs
Influenza virus is able to C
make huge " leaps" in its
evolution from times to
times by
successfully " jumping" from
an animal host to a human (
such as swine flu) , due to
___________
A. Being dormant
B. Suttle capsid
proteins subunit
modification
C. Genetic shift
D. Genetic drift
E. Gradual variation
Important planktonic group of C
organisms
called foraminifera play
major role as a sink for
calcium, since _.
A. They use Ca/K symport
B. Their nucleus require Ca
C. Their shells made of calcium
carbonate
D. .Their flagellae require Ca
E. Their mitochondria run
on calcium carbonate
4/37
