Which of the following statements regarding microbial death is FALSE? Question options: cell walls are targeted by all microbial control agents all of these statements are TRUE many antimicrobial agents function through the disruption of protein structure under a given set of conditions, the fraction of a microbial population tht dies per minute is typically constant over time the effectiveness of an antibacterial agent is a function of its microbial death rate the rate at which microbes are killed is termed the microbial death rate

Which of the following statements regarding microbial death is FALSE? Question options: cell walls are targeted by all microbial control agents all of these statements are TRUE many antimicrobial agents function through the disruption of protein structure under a given set of conditions, the fraction of a microbial population tht dies per minute is typically constant over time the effectiveness of an antibacterial agent is a function of its microbial death rate the rate at which microbes are killed is termed the microbial death rate

Microbiology for Surgical Technologists (MindTap Course List)

2nd Edition

ISBN:9781111306663

Author:Margaret Rodriguez, Paul Price

Publisher:Margaret Rodriguez, Paul Price

Chapter2: The Science Of Microbiology

Section: Chapter Questions

Problem 2TBP

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Which of the following statements regarding microbial death is FALSE? Question options: cell walls are targeted by many microbial control agents the effectiveness of an antibacterial agent is a funciton of its microbial death rate the rate at which microbes are killed is termed the microbial death rate all of these statements are TRUE few antimicrobial agents function through the disruption of protein structure under a given set of conditions, the fraction of a microbial population that dies per minute is typically constant over time
A drug failed to work. Even if resistance is not an issue, the antimicrobials are found to only have a discrete range of bacteria that they can exert their effects on. Why is this the found case? Question options: Microbial components vary over different species and strains. If the organism naturally doesn't express the target component, the drug won't be able to exert an effect on it. Antimicrobials are designed to be effective for a predetermined period of time. An older antibiotic can't exert any effects on a new microbial strain. There is a different antimicrobial designed for every strain of bacteria. As a result there is no crossover in action due to selective targeting. The body filters antimicrobial compounds to interact with their target microorganism. Until research determines how to control this, antimicrobials will only ever have a very discrete range of targets.
Which of the following statements regarding microbial control agents is FALSE? Question options: strongly acidic or alkaline disinfectants are typically more effective than neutral pH agents the presence of extracellular fats typically decreases the effectiveness of control agents a warmed disinfectant is typically more effective than the same disinfectant at room temperature substances secreted by members of biofilms increase protection against microbial control agents all of these statements are TRUE bacterial endospores are more resistant to antimicrobial treatment than vegetative bacterial cells
Besides dehydrated foods, how might the amount of water available to microbes be decreased? Group of answer choices Treatment by non-ionizing radiation. Treatment at high pressures for extended periods of time. Storage at temperatures between -2 and 4 °C. Pasteurization Addition of solutes such as salt or sugar.
a.) Infection with this pathogen can result in a wide range of diseases from ear infections to meningitis. Group of answer choices Haemophilus influenzae Francisella tularensis Enterococcus faecalis Naegleria fowleri b.)As with all microbial control methods, the _______ the cells are exposed, the ______ damage accumulates. Group of answer choices longer, less shorter, more longer, more c.) Which of the following wavelengths would NOT be considered ultraviolet radiation? Group of answer choices 360 nm 200 nm 600 nm 25 nm
PLEASE answer the 2 with no much explanation Culture media is sterilized after the inoculation of microbes to ensure optimal growth of target microorganisms True False Microwave oven available in the laboratory can be used to heat culture media, as well as food for lunch. True False
Which of the following is NOT a property of an antimicrobial agent? a. Must have a known concentration over a period of time required to eliminate a pathogen b. all choices are correct c. must be selectively toxic d. Must have a favorable chemotherapeutic index
A broth containing 1 million bacterial cells is treated with an antimicrobial agent that kills 90% of the cells in 1 minute. What is the minimum amount of time it will take before all the cells in the broth are dead? 3 minutes 5 minutes 7 minutes 10 minutes
a) Microbial products can be classified in three major categories which related to the microorganism growth curve. By giving examples of product based on the three major categories, sketch the microbial growth and product formation curves. Describe the phases involves in the growing of microorganism for the products formation. List all references with proper citations.
In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified. In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified. True False
Classify the bacteria that is most likely involved in each situation provided according to their classification (as to microbial growth requirements). Check the correct answers from the choices. 1. The bacteria under study thrives at the alveolar ducts in the lungs causing respiratory disease. Obligate aerobe Obligate anaerobe Microaerophile Aerotolerant anaerobe Mesophile Thermophiles 2. A microorganism that can survive pickling and refrigeration was discovered when a jar of pickles grew several colonies despite following the correct recipe, tight closure seal, and proper refrigeration. Psychrophile Psychrotroph Neutrophile Acidophile Obligate aerobe Microaerophile 3. The spoiled bottle of wine that was stored at standard room temperature for several months eventually gave off a vinegar-like taste and odor. Spoilage was found to be due to the leaky bottle closure leading to bacterial contamination. Acidophile…
The survival, growth and reproduction of microorganisms are influenced by physical and nutritional factors in its environment. Give the principle of microbial destruction/microbe population control behind making jam and jelly.

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	cell walls are targeted by all microbial control agents
	all of these statements are TRUE
	many antimicrobial agents function through the disruption of protein structure
	under a given set of conditions, the fraction of a microbial population tht dies per minute is typically constant over time
	the effectiveness of an antibacterial agent is a function of its microbial death rate
	the rate at which microbes are killed is termed the microbial death rate