MBIO 3400 TTU Zak Exam 2 questions
with verified solutions
For an aerobic bacterium, what is the function of the electron transport chain? -
correct answer ✔✔to oxidize NADH+ and produce ATP
Which of the following statements best describes chromosomal replication in
bacteria? - correct answer ✔✔all are correct
Which of the following molecules involved in protein synthesis contains a codon? -
correct answer ✔✔mRNA
In the Lactose Operon Model, what happens when lactose is present in the
environment of a bacterium that can use lactose as a carbon source? - correct
answer ✔✔transcription of the B-glactosidase gene is turned on
The RNA that carries the genetic message of DNA to synthesize a protein describes
the production of - correct answer ✔✔messenger RNA
Why can one not reliably predict the sequence of nucleotides on an mRNA by
determining the amino acid sequence of proteins? - correct answer ✔✔an amino
acid can be coded for by more than one condon
Short pieces of DNA that are produced on the lagging strand - correct answer
✔✔Okazaki fragments
, In DNA replication, one strand of each molecule comes from the original
molecule. We say that this type of molecular copying is termed: (1) - correct
answer ✔✔semi-conservative (1)
In the presence of oxygen, Pyruvic Acid is metabolized completely to CO2 in which
metabolic pathways in bacteria? - correct answer ✔✔the Kreb's Cycle
For an aerobic bacterium the Chemiosmotic Mechanism refers to: - correct
answer ✔✔the use of a porton gradient that is created across the cell membrane
during electron transport to gereate ATP
What is the Proton Motive Force? - correct answer ✔✔the charge difference that
is generated in electron transport across the plasma membrane
Why are some bacteria able to carry out anaerobic respiration? - correct answer
✔✔some bacteria use other oxidized compounds such as NO3 or SO4 to act as
the terminal electron acceptor
In fungi, electron transport is associated with which of the following structures? -
correct answer ✔✔the mitochondrion
Rho factors are responsible for what aspect of RNA production? - correct answer
✔✔they bind to a specific region of the RNA transcript and move towards the
RNA polymerase and forcing the polymerase off of the DNA
The leading strand in DNA replication in bacteria is copied? - correct answer ✔✔5
to 3' direction
with verified solutions
For an aerobic bacterium, what is the function of the electron transport chain? -
correct answer ✔✔to oxidize NADH+ and produce ATP
Which of the following statements best describes chromosomal replication in
bacteria? - correct answer ✔✔all are correct
Which of the following molecules involved in protein synthesis contains a codon? -
correct answer ✔✔mRNA
In the Lactose Operon Model, what happens when lactose is present in the
environment of a bacterium that can use lactose as a carbon source? - correct
answer ✔✔transcription of the B-glactosidase gene is turned on
The RNA that carries the genetic message of DNA to synthesize a protein describes
the production of - correct answer ✔✔messenger RNA
Why can one not reliably predict the sequence of nucleotides on an mRNA by
determining the amino acid sequence of proteins? - correct answer ✔✔an amino
acid can be coded for by more than one condon
Short pieces of DNA that are produced on the lagging strand - correct answer
✔✔Okazaki fragments
, In DNA replication, one strand of each molecule comes from the original
molecule. We say that this type of molecular copying is termed: (1) - correct
answer ✔✔semi-conservative (1)
In the presence of oxygen, Pyruvic Acid is metabolized completely to CO2 in which
metabolic pathways in bacteria? - correct answer ✔✔the Kreb's Cycle
For an aerobic bacterium the Chemiosmotic Mechanism refers to: - correct
answer ✔✔the use of a porton gradient that is created across the cell membrane
during electron transport to gereate ATP
What is the Proton Motive Force? - correct answer ✔✔the charge difference that
is generated in electron transport across the plasma membrane
Why are some bacteria able to carry out anaerobic respiration? - correct answer
✔✔some bacteria use other oxidized compounds such as NO3 or SO4 to act as
the terminal electron acceptor
In fungi, electron transport is associated with which of the following structures? -
correct answer ✔✔the mitochondrion
Rho factors are responsible for what aspect of RNA production? - correct answer
✔✔they bind to a specific region of the RNA transcript and move towards the
RNA polymerase and forcing the polymerase off of the DNA
The leading strand in DNA replication in bacteria is copied? - correct answer ✔✔5
to 3' direction
