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BIOL 1105 Final Exam Review Questions with 100- correct answers(graded A+)
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BIOL 1105 Final Exam Review Questions with 100- correct answers(graded A+)
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BIOL 1105 Final Exam ReviewQuestions with 100% correct
answers(graded A+)
According to the Second law of Thermodynamics...
a. heat energy is used to do cellular work
b. energy cannot be created or destroyed
c. entropy is increasing
d. disorder converts to order - answer c
What is the function of a promoter sequence?
A. The promoter is where the primer for RNA polymerase is found
B. The promoter serves as a binding site for RNA polymerase
C. The promoter binds to tRNA so that translation can begin
D. The promoter serves no major function - answer B
a molecule that __________ an electron is said to be reduced and will
have __________ energy than its oxidized form
a. gains, more
b. loses, more
c. gains, less
d. loses, less - answer a
,What is the function of the 5' cap added to eukaryotic mRNA?
A. It allows the mRNA to fold
B. It protects the mRNA from degradation
C. It removes the non-coding sequences
D. It recruits RNA polymerase - answer B
what types of reactions use energy to synthesize molecules?
a. anabolic
b. catabolic
c. exergonic
d. gibbs - answer a
A _______ mutation will change a functional codon to a stop codon.
A. Silent
B. Missense
C. Frameshift
D. Nonsense - answer D
the energy in chemical bonds represents:
a. potential energy
b. kinetic energy
c. lost energy
d. free energy - answer a
,Unlike DNA polymerase, RNA polymerase adds nucleotides in the 3'
to 5' direction.
True
False - answer False
in exergonic reactions, the products of the reaction have __________
free energy compared to the reactants.
a. less
b. more
c. equivalent
d. zero - answer a
Proteins are synthesized from the ____-terminus to the ____-terminus.
A. 5', 3'
B. 3', 5'
C. N, C
D. C, N - answer C
NADH is the __________ form of NAD+
a. reduced
b. oxidized
c. smaller
d. inert - answer a
A single gene can be both positively and negatively controlled.
, True
False - answer True
Which of the following would favor transcription of the lac operon?
A. The presence of lactose and the absence of glucose
B. The presence of both lactose and glucose
C. CAP activator protein and lac repressor bound to the operon
D. The absence of both glucose and lactose - answer A
an energy-producing reaction in which the final electron acceptor is
molecular oxygen (O2) is termed __________.
a. fermentation
b. aerobic respiration
c. anaerobic respiration
d. the Krebs cycle - answer b
the first stage of cellular respiration, __________, occurs with or
without oxygen present.
a. pyruvate oxidation
b. the Kreb's cycle
c. glycolysis
d. electron transport/ chemiosmosis - answer c
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