Practice Test Exam 3 OPTION 2 (Karol 279)

Prevention of infection of living tissue by microorganisms

Antisepsis

Cold Filtration

How would you sterilize a liquid that can NOT be heated

Your swimming pool has become overrun with algae. What would you use to kill the algae?

Copper Sulfate

The two most impartant alcohol germicides are

Ethanol and Isopropanol

UV light damages bacterial cells by affecting the

bacterial DNA

The gas used in municipal water to keep bacteria to keep bacteria populations low

Chlorine

An example of a catatonic detergent that interacts with the cell membrane

Quaternary Ammonium

Compounds produced by microorganisms that inhibit the growth of or kill other species of unrelated microorganisms

Antibiotics

A drug that blocks the function of a metabolic pathway

Growth Factor Analog

The effect of penicillin is more evident in Gram positive or Gram negative bacteria?

Gram positive

The use of drugs to injure the invading organism without injury to the host

chemotherapy

What are the antiviral agents?

When would you use the most probable number method?

when the organism cannot grow on agar

What are the macrolid antibiotics?

The lowest temp at which a microbial population is killed in a specific amount of time is the...

Thermal death point

Psycrophile

cold-loving microbe

Most rapid way to achieve sterilization

Direct Flame

Phosphoroclastic Bacteria

Barophilic organisms

grow more rapidly in increased pressure

Bacteria reproduce by the process called

binary fission

Halophilic bacteria

salt loving bacteria

When is a period of two hours at 160 degrees required for killing bacteria?

in a hot air oven

Antifungal agents

clotrimazole, miconazole, amphotericin B, nystatin, griseofulvin, flucytosine

Semisynthetic penicillin

ampicillin and carbenicillin

The compound used by Joseph Lister in the 1860's as a disinfectant

Phenol

The lowest concentration of an antimicrobial resulting in no growth

Minimum Inhibitory Concentration

An inhibitor of nucleotide synthesis

Para-aminobenzoic acid

Sulfanilamid resembles this growth factor

PABA

PASTUERIZATION IS NOT

STERILIZATION

Reactive Halogen Element

Fluorine

Require oxygen but at lower levels than atmospheric content

Microaerophillic

A culture in a closed system with a single batch of medium

Batch Culture

NOT ionizing radiation

UV

Removal of bacteria through porous substance

Filtration