IAHCSMM CRCST 8TH EDITION - CHAPTER 4 (Complete) Question and answer 100% correct 2023CHAPTER 4 - TERMS
CHAPTER 4 - TERMS
Microbiology
The study of microorganisms. The scientific study of the nature, life and action of microorganisms.
Contamination
The state of being soiled by con...
contamination the state of being soiled by contact
pathogen capable of causing disease disease ca
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IAHCSMM CRCST 8TH EDITION - CHAPTER 4 Q
IAHCSMM CRCST 8TH EDITION - CHAPTER 4 Q
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IAHCSMM CRCST 8TH EDITION - CHAPTER 4 (Complete) Question and answer 100% correct 2023
CHAPTER 4 - TERMS - correct answer CHAPTER 4 - TERMS
Microbiology - correct answer The study of microorganisms. The scientific study of the
nature, life and action of microorganisms.
Contamination - correct answer The state of being soiled by contact with infectious organisms or other material.
Pathogen - correct answer Capable of causing disease (disease-causing microorganism).
Micron - correct answer 1/25,000 of an inch or 1/1,000 of a millimeter.
Aerobic - correct answer Requiring the presence of air or free oxygen.
Anaerobic - correct answer Bacteria that can live in the absence of atmospheric oxygen.
Endospores (spores) - correct answer Microorganisms capable of forming a thick wall around themselves enabling them to survive in adverse conditions; a resistant form of bacterium.
pH - correct answer Measure of alkalinity or acidity on a scale of 0-14; pH of 7 is neutral (neither acid or alkaline); pH below 7 is acid; pH above 7 is alkaline.
Psychrophiles (bacteria) - correct answer Bacteria whose optimum temperature for growth is COLDER temperature of 59°F to 68°F (15°C to 20°C) or below.
Mesophiles (bacteria) - correct answer Bacteria that grow best at MODERATE temperatures of 68°F to 113°F (20°C to 45°C).
Thermophiles (bacteria) - correct answer Bacteria which grow best at a WARMER temperature of 122°Fto 158°F (50° to 70°C).
Vegetative stage - correct answer State of active growth of microorganisms (as opposed to the resting or spore stages).
Angstrom - correct answer A unit used to measure the length of light
waves. Binary fission - correct answer The typical method of bacterial reproduction in which a cell divides into two equal parts.
Prion - correct answer An infectious protein particle: an infectious particle of protein that, unlike a virus, contains no nucleic acid, does not trigger an immune response, and is not destroyed by extreme heat or cold.
CHAPTER 4 - PRE-TEST - correct answer CHAPTER 4 - PRE-TEST
Viral - correct answer Herpes Simplex is a [a] disease
Anaerobic - correct answer Tetanus and botulism do not require free oxygen to grow, so they are classified as [a] bacteria.
Vegetative - correct answer Sunlight is lethal to the [a] stage of pathogens.
Binary Fission - correct answer The bacterial reproductive process that takes place when a mother cell divides into two daughter cells is called [a].
Positive - correct answer Using Gram-Stain classifications, Staphlococcus, Enterococcus, and Streptococcus are examples of Gram- [a] bacteria.
Mesophiles - correct answer [a] are often pathogenic to humans because they grow best at body temperature.
Flagella - correct answer Thread-like "tails" that help bacteria move through liquids are called [a].
gram stain, Ziehl-Neilson Stain - correct answer The two most common processes designed to classify bacteria by color change are the [a] and the [b].
Nucleus - correct answer The functional center of a cell that governs activity and heredity is called the [a].
1-2 - correct answer Most bacteria are approximately [a] microns in size.
Contamination - correct answer [a] is defined as the state of being soiled or infected by contact with infectious organisms or other material.
coccus, bacillus, spirilla - correct answer Bacteria are divided into 3 main shape classifications,[a] (round), [b] (rods), and [c] (spirals).
Aerobic - correct answer Bacteria that require free oxygen to grow are called [a] bacteria.
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