Chapters 7, 8, 9 Quiz Questions Flashcards
Substrates must be brought into the cell to be used for growth metabolism. One method modifies the substrate as it is brought into the cell. This method allows bacteria to use a variety of sugars and is called
ABC Transport
Group translocation
simple diffusion
ion-coupled transport
facilitated diffusion
Group translocation
The feeder pathway autotrophs use to fix carbon is called
Glycolysis
The Citric acid cycle
The Entner Duodoroff Pathway
Fermentation
The Calvin cycle
The Calvin cycle
A cell is unable to synthesize the amino acid cysteine. Assuming the cell could survive, which element would you expect it would have the most difficulty assimilating?
P
N
C
S
O
S
The first amino acid incorporated into bacterial proteins is:
Methionine
Tyrosine
N-Formylmethionine
Arginine
Tryptophan
N-Formylmethionine
Bacteria can protect their DNA using proteins that may cut up foreign DNA. What are these proteins called?
Ribozymes
Restriction endonucleases
RNA polymerases
DNA polymerases
Flippases
Restriction endonucleases
Penicillin is an antibiotic that targets the cell wall synthesis of bacteria. What exactly does penicillin bind to prevent growth?
Bam complex
Undecaprenylphosphate
Transpeptidase
Lipid A
Murein
Transpeptidase
Which protein complex is responsible for incorporating proteins specifically into the outer membrane of gram-negative bacteria?
Sec proteins
Bam complex
HsiB/HsiC
ABC transporter
ClpV complex
Bam complex
Which secretory system forms a phage-related contractile structure (like inserting a needle) for the injection of effector proteins (like toxins) into target cells?
Type I
Type VI
Type II
Type IV
Type III
Type VI
Which of the following is a TRUE difference between prokaryotic and eukaryotic DNA, RNA, and Protein synthesis.
Eukaryotes have 70S ribosomes, while prokaryotes have 80S ribosomes for protein synthesis.
Eukaryotes may have operons to control gene expression, but prokaryotes do not.
Prokaryotes couple transcription and translation, while eukaryotes do not.
Prokaryotes use DNA polymerase to replicate DNA and eukaryotes do not have DNA polymerases.
Eukaryotes use sigma factors to recognize promoters and prokaryotes do not
Prokaryotes couple transcription and translation, while eukaryotes do not.
Which of the following is not targeted by any antimicrobial agent?
Murein production
Large subunit of prokaryotic ribosome
All of the answers are targets of at least one antimicrobial agent.
DNA gyrase
Small subunit of prokaryotic ribosome
RNA polymerase
All of the answers are targets of at least one antimicrobial agent.
