Which statement among A-D is false regarding physical and chemical agents of control? A) O Effective killing of bacteria via irradiation with UV light would likely take longer than if irradiated with gamma rays or x-rays. B) O Detergent-type disinfectants exert their effect by solubilizing membranes. C) O Antiseptics are generally not as strongly concentrated as disinfectants D) O Sterilization and pasteurization are equivalent processes.

Q: disinfectants, antiseptics and antibiotics

A: Disinfectants are a type of  chemicals that destroy pathogens of causing of disease or other harmful…

Q: can the same chemical be used for an antiseptic and a disinfectant?

A: Antiseptic - These can slow down the growth as well as can kill the microbes, but do not harm the…

Q: Which of the following is NOT a chemical method of microbial control? a) refrigeration b) ethyl…

A: In order to stop the spread of infections and diseases, microbes must be under control. Thereby…

Q: When hydrogen peroxide is placed on a colony of an unknown bacterium, bubbles form. Based on this…

A: Correct option is, (d) Is catalase-positive.

Q: Using the diagram above, answer questions 26-35: 26) To focus on a specimen when you are using the…

A: 26) To focus on a specimen when you are using the scanning power objective lens, you would use the…

Q: Ch. 6: Water intoxication may be due to: a) administration of too much hypotonic solution b)…

A: Water is the liquid present in the cells. It has salts and other chemicals dissolved in it.

Q: Microbiology Exotoxins can be the following EXCEPT A) they are LPS/lipopolysacharride B) they are…

A: The substances produced by bacteria or any living organism which in contact with tissues can cause…

Q: Most human bacterial pathogens are labeled as __ according to their temperature requirement: a)…

A: Microorganisms known as mesophiles thrive in habitats with moderate temperatures, often between 20°C…

Q: equires oxygen at a lower concentration than typically found in air.   Question 3 options:   a)…

A: Throughout nature, aerobic and anaerobic environments can be found in diverse niches. These…

Q: Which disinfectant is the most effective? and why? Which disinfectant(s) is (are) bactericidal? and…

A: Disinfectant A is most effective as  there is no growth of salmonella choleraesuis at dilution 1:2…

Q: Which of the following is not a matching pair?a) Potable water—presence of pathogensb) High BOD—high…

A: Filamentous bulking refers to the uncontrolled growth of filamentous bacteria. Primary treatment…

Q: You perform a Gram staining technique on two bacterial species and observe that one is stained…

A: Gram staining is a technique used to differentiate between two groups of bacteria namely…

Q: Which of the following is false?a) A high-level disinfectant cannot be used as a sterilant.b)…

A: According to the risk for transmitting microbial infections, the medical instruments are classified…

Q: What are the most used antiseptic solutions to clean a wound in veterinary clinics in the United…

A: The objective of the question is to identify the most commonly used antiseptic solutions for wound…

Q: The sediment observed in stained blood smear caused by: a) Overstraining b) More Haematoxylin in the…

A: Here we have to explain about why sediment observed in stained blood smear.

Q: D A с E H Using the diagram above, answer questions 26-35: 26) To focus on a specimen when you are…

A: An optical tool used to magnify small things such as a microscope. The objective lens, eyepiece,…

Q: Which bacteria are inhibited from growing on eosin methylene blue (EMB) and agar? a)halophilic…

A: EOSIN METHYLENE BLUE  - eosin methylene blue is a selective strain for gram - negative bacteria . It…

Q: A selective media  a) inhibit the growth of certain bacteria while allowing others to grow b)…

A: An example of selective media includes- eosin methylene blue that is toxic to Gram-positive bacteria…

Q: 9. Is the eosin methylene blue agar (EMB) a complex or defined medium? Explain based on its…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The use of sterile techniques and agar media enables microbiologists to study: a) Bacterial growth…

A: Agar is a polysaccharide composed of agarose and agaropectin. It is a gelatinous substance used in…

Q: 44. The use of chemical agents to kill or inhibit the growth of microorganisms within their host’s…

A: The answer is d) chemotherapeutic, and here's a breakdown of why the other options are less…

Q: The autoclave uses a combination of ___ to accomplish its function: a) temperature and pressure b)…

A: a) temperature and pressureExplanation:An autoclave is a widely used device in various fields,…

Q: Sample A: Sample B: Sample C: Sample D: Sample E: Sample F: 22mm 18mm 35mm 30mm 28mm 28mm 21mm 17mm…

A: Introduction The zone of inhibition is the area around an antibiotic pot where bacteria cannot grow.…

Q: Botulism is cause by an: a)Rickettsia b)Aneorobic spore forming bacteria c)Gram negative…

A: Botulism is not common  but a serious disease. Botulism can be transmitted through contaminated…

Q: The process in which all organisms and pathogens are destroyed is called ------.  a) Disinfection…

A: Microbes are responsible for various diseases in humans as well as animals.Microbes and pathogens…

Q: In step 3 of today's protocol, it mentions that the incubation step with the P2 buffer should not be…

A: P2 buffer is a lysis buffer solution containing sodium dodecyl sulfate to puncture holes in cellular…

Q: -For each item listed below, select a sterilant that you feel is the most suitable and effective for…

A: A growth medium is intended to promote the growth of a variety of microorganisms or cells by the…

Q: Is the Peptone Iron Agar (PIA) a complex or defined medium? Explain based on its composition. Is the…

A: Depending on their composition, media can be classified as defined and undefined media. Defined…

Q: Unlike a disinfectant, an antiseptica) sanitizes objects rather than sterilizes them.b) destroys all…

A: Pathogen are the organisms that can cause disease or infections after invading the host cells and…

Q: X D A B C 11:32 E MT Sp 24 H K 56% 50 5 Using the diagram above, answer questions 26-35: 26) To…

A: 26) To zero in on an example with the examining power objective focal point, you would utilize the…

Q: thanol has been carried over into your DNA sample (two answers possible here, select both of them)…

A: DNA is not soluble in ethanol . But when ethanol is there DNA gets separated by forming white…

Q: The benefits of properly using radioactivity include al Treating cancer in human beings. Ob)…

A: Radioactivity refers to the emission of ionizing radiation by unstable atomic nuclei. This…

Q: feeding formulas

A: Tube feeding formula  is a formula that is designed for children or adults in order to provide…

Q: We have learned terms like 'sterile,' 'commensal,' 'contaminants,' 'germs,' 'microorganisms,' and…

A: The skin surface should be sterilised before puncturing it with injection to draw blood sample as it…

Q: 7) One of the following antibiotics doesn’t work through the same class of molecules as the rest: a)…

A: Daptomycin works through a different class of molecules known as lipopeptides, whereas the rest of…

Q: Which of the following apply to alcohols?  Mark ALL that apply: - disinfect items that are soaking…

A: Alcohol is an organic compound that carries at least one hydroxyl functional group bound to a…

Q: You plated 1.0 mL of a sample diluted by a factor of 10^-5 and you counted 50 comonies after…

A: The stock concentration of the bacteria can be determined by counting the colonies formed on the…