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uber moronic.

An agent used to reduce the number of bacteria on a toilet would most accurately be called:


Most bacteria reproduce by

binary fission

During which growth phase will gram-positive bacteria be most susceptible to penicillin?

log phase

In a test tube filled with liquid, where to microaerophiles hang out?

in the middle; they require (love) a little bit of oxygen

In a test tube filled with liquid, where do the facultative anaerobes hang out?

mostly toward the surface, but they are spread throughout; they do not required oxygen, but they can live in its presence

In a test tube filled with liquid, where do the obligate aerobes hang out?

at the surface; they require oxygen

In a test tube filled with liquid, where do the obligate anaerobes hang out?

at the bottom; they cannot tolerate oxygen

Which agent is commonly used for chemical sterilization?

ethylene oxide

What is the process of the skin being swabbed with alcohol before receiving an injection?


What is the destruction of vegetative pathogens on living tissue?


What is treatment intended to lower microbial counts on eating and drinking utensils to safe public health levels?


What is removal or destruction of all living organisms, including endospores (except prions)


T/F: Bacterial growth refers to an increase in the number of cells in a bacterial culture


T/F: Filtration methods are used to count bacteria in very low concentration, such as in lakes or streams


T/F: Most pathogenic bacteria are thermophiles


What is the name of the agent commonly used as a chemical food preservative?

Benzoic acid

In what way are semisynthetic penicillins and natural penicillins alike?

Both are based on Beta-lactam

What is an inhibitor of essential metabolite synthesis?


What is an inhibitor of cell wall synthesis?


What is an inhibitor of nucleic acid replication?


What is an inhibitor of protein synthesis?


What drug works to injure the plasma membrane?

Polymyxin B

The major significance of Robert Koch's work is that

microorganisms can cause disease

One effect of washing regularly with antibacterial agents is the removal of normal microbiota. This can result in:

increased susceptibility to disease

A needlestick is an example of

a formite

The science that deals with when diseases occur and how they are transmitted is called:


Symptoms of disease differ from signs of disease in that symptoms are:

changes felt by the patient/subjective

If a prodromal period exists for a certain disease, it should occur prior to:


T/F: Reservoirs of infections are always animate objects


T/F: Both normal and transient flora can become opportunistic pathogens


T/F: A syndrome is a specific group of diagnoses that always accompanies a specific disease


T/F: Compromised hosts are always suffering from suppressed immune systems


What is used to preserve meat products such as ham, bacon, hotdogs, and sausage


What is widely used to control mold and some bacteria in foods and cosmetics?

Sorbic Acid

What is used for skin degerming and removal of debris?


What is a bisphenol used in disinfectant hand soaps and skin lotions?


More than half of our antibiotics are produced by:


To date, most of our natural antibiotics have been found to be produced by members of what genus?


What does this statement refer to: Some bacterial mutants modify the porin opening so that antibiotics cannot enter the periplasmic space

Blocking entry

What does this statement refer to: Gram-negative bacteria expels antibiotics to prevent them from reaching an effective concentration

efflux of antibiotic

What does this statement refer to: Minor modifications at this site can neutralize the effects of antibiotics

alteration of target molecule

What does this statement refer to: Uses Beta-lactamase to breakdown the beta-ring

inactivation by enzymes

What contributes to postoperative infections?

normal microbiota of operating room staff, using syringes more than once, errors in aseptic techniques, antibiotic resistance

In which of the following patterns of disease does the patient experience no signs or symptoms?

incubation and convalescence

Describe that pattern of microbial death:

the cells in a population die at a constant rate

Describe endemic disease:

constantly present in population at low levels

Describe epidemic disease:

present in population at abnormally high levels

Describe pandemic disease:

present worldwide at a high level

List, in order, the development of disease (5)


(I prod Ike Delicious Cone)

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