Which of these materials are not removed during the water treatment process? Viruses Bacteria O Debris O Deuterium (hydrogen isotope)

Which type of pathogen is the easiest to destroy? Gram-negative bacilli   Naked viruses   Prions   Gram-positive cocci   Endospores

A bacterium that can form endospores likely has the ability to; withstand high temperatures resist at least one antibiotic share DNA with other bacteria form conjugation tubes

Which of the following is not a classification of bacteria? Bacillus Spirilla Barilla Cocci

Sterility: is achieved by most disinfectants and antiseptics (i.e., chemical agents) O is achieved by soap and water is the absence of PATHOGENS or spoilage-causing microbes ONLY Cannot be achieved by ethylene oxide O CANNOT be achieved by autoclaving O is the absence of ALL living cells and endospores

The presence of endotoxins in a sterile fluid indicates: the presence of gram-positive cell walls the presence of gram-negative cell walls gram-negative cells are growing gram-positive cells are growing

What statement describes the danger of using heavy metals to control microbe growth? Group of answer choices Heavy metals promote biofilm formation in humans. Heavy metals stimulate some microbes to reproduce even more. Heavy metals can assist with virus attachment to host cells. Heavy metals are toxic to many organisms besides microbes.

Which of the following will NOT be inactivated/destroyed by alcohol based hand sanitizers? O enveloped viruses protozoa bacterial endospores Gram-negative bacteria

A bacterial sample collected from a patient is processed using a Gram's stain. After staining, the bacteria develop a slight pinkish color. This coloration would suggest the patient is suffering from a infection. Gram Positive Bacteria Viral Gram Negative Bacteria Gram Cracker

Microorganisms are involved in each of the following processes EXCEPT infection fog production decomposition of organic materials O food production oxygen production