Inhibit the conversion of para-amino benzoic acid (PABA) to folic acid.
Lack of folic acid stops nucleic acid syntheses and DNA replication and
the cell dies.
Humans do not synthesize folic acid. They obtain it from foo
What is the test indicator in the OF test?
What abilities can one determine, about a MO
with the OF?
Whether a MO has the ability to OX/ferment a sugar to acid.
A positive O tube indicates that the MO is able
A positive F tube
Give an example of a genus of bacteria that is
What do we mean when we say that a staining
technique is differential?
Differential stains allow a microbiologist to detect difference between MO's or
differences between parts of the
Describe how you would make a broth into a
In order to make a broth into a solid medium, 1.5% agar would need to be
added to it.
A liquid medium is called a?
Microbiological media usually comes in what
From Wikipedia, the free encyclopedia
Aseptic technique refers to a procedure that is performed under sterile conditions. This includes
medical and laboratory techniques, such as with cultures. It includes techniques like flame
Beta-lactam antibiotics are among the most commonly prescribed drugs, grouped together based upon a
shared structural feature, the beta-lactam ring. Beta-lactam antibiotics include:
Molecules may be represented in two dimensions by a structural diagram:
While this representation allows for the derivation of the three dimensional structure
of the left molecule, the right molec
What are the four main steps of the Gram stain
procedure and what are their functions?
1) bacteria stained with the primary dye, crystal violet. Gram + and Gram bacteria become directly stained and appear purple.2) Bacteria is treated with
Gram's iodine s
Bacitracin and polymyxin B
produced by Bacillus species
Bacitracin interferes with transport of cell wall precursors thru the cell
Polymyxin B increases permeability of cell membrane and causes cell
side effects: tox