The 1st person to visualize individual microbes was...
Antoni Van Leeuwenhoek
The use of agar as the gelling agent in solid media was suggested by whom?
Angela Hesse
The genetic expression machinery of archaea is most similar to _____
Eukaryotes
Which of the folloing staining processes requires crystal violet?
Gram Staining
2D polyacrylamide gel electrophoresis involves all of these except what?
D) DNA sequencing
The chromosome includes a number of extra twists called supercoils. All of the following are true of supercoiling except what?
E) In bacteria and eukaryotic cells, there is positive supercoiling
Which name refers to having flagella attached at one or both ends of the cell?
Iophotrichous
In the lab, E. coli can divide into 2 cells every _____
20-30 mins
Which is a micronutrient?
D) zinc
All of the following are true about MacConkey medium except what?
E) Lactose fermenters appear colorless
Which of the following can be used to assess protein expression under different culture conditions?
D) 2D protein gels
Okazaki fragments are approx. how many bases in length?
1000
Which molecule is responsible for removing torsional stress during DNA replication?
DNA gyrase
The eukaryotic predators of the microscopic world are ____
Protists
Which of the following is not a palindrome?
D) toto
Which of the following is not rue about the 2 strands of DNA in a double helix?
A) catenated
Which of the following is not part of initiation of transcription?
E) synthesis of a primer
The energy souce utilized by the elongation factors EF-G and EF-Tu is ____
GTP hydrolysis
Post translational modification may involve
D) all of the above
Specific membrane components, particularly ________, determine which substances are transported across the membrane.
Proteins
Evolution toward pathogenicity may involve _____
E) all of the above
Hydrolysis of ATP with the release of pyrophosphate is the driving force of which of the following reactions?
D) all of the above
In glycolysis, dihydroxyacetone phosphate is converted to ____
Glyceraldehyde-3-phosphate
T or F: Antiseptics and antibiotics are both used orally to fight bacterial infections
F
T or F: The bacterial nucleoid is bound by a membrane
F
T or F: During biofilm formation, as more and more cells bind to the surface, they begin to send signals to each other in a process called quorum sensing
T
T or F: Extremophiles typically evolve to survive multiple extreme envirionments
T
T or F: The ribosome has no enzymatic activity
F
T or F: Only the nuclotide triphosphate ATP carries energy