Which bacterium showed some hydrogen sulfide precipitate after 24 hours? Would you expect this to increase or decrease after 48 hours? Explain

Q: Why does an facaltive anaerobic bacterium usually grow better with oxygen than without?

A: A facultative anaerobe is one which is able to survive in both aerobic (oxygen) as well as anaerobic…

Q: Why is water tested for coliform bacteria rather than for pathogenic bacteria which may be present?

A: Water quality testing plays a crucial role in safeguarding public health and ensuring the safety of…

Q: you grew streak plates of Clostridium sporogenes under both aerobic and anaerobic conditions. Which…

A: The experiment involves growing streak plates of Clostridium sporogenes under both aerobic and…

Q: Two different bacterial samples, A and B, were inoculated onto SIM media. What can you conclude…

A: SIM (Sulfide, Indole and Motility) test is done to differentiate the Gram negative bacilli based on…

Q: Which of the following bacteria can survive in in temperatures ranging from 390F (40C)---to 990F…

A: Thermophiles Are a type of heat-loving microbe that lives in a variety of ecological niches such as…

Q: What effect does decreasing the incubation temperature have on bacterial growth rate? Why?

A: Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary…

Q: List the four cellular agents of bacterium that most antimicrobial agents such as antibiotics…

A: Antibiotics are the secondary metabolites that are secreted by a group of microbes that declines the…

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: Is this a microbial formation visible to the naked eye? Explain. Leg abscess aspirate swabbed onto…

A: Microbes are biological entities that can not be seen by the naked eyes due to their very small…

Q: biofilm-producing bacteria

A: Disclaimer: Kindly repost for other questions. As per the guidelines we are supposed to answer only…

Q: of.

A: All the above pictures are for the isolation of coliforms and intestinal bacteria. MacConkey agar…

Q: A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does…

A: INTRODUCTION Chemolithoautotrophs These are organisms that obtain energy from oxidizing inorganic…

Q: Can a bacterium be positive for both MR and VP? explain

A: MR(Methyl Red) test is performed to detect glucose fermenting bacteria. The MR test acts as a pH…

Q: What type of bacterium can be oxygen dependent or independent.

A: There are various physical factors that affect the growth of bacteria. Factors like oxygen…

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: Briefly explain the shake-tube inoculation

A: Inoculation is the key process in the microbiology in which inoculum is extracted.

Q: List 5 temperature requirements for bacterial growth. Explain the temperature ranges and where do…

A: Ans: Bacterial growth: The growth of animalcules or microbe happen at different optimum conditions.

Q: Name ONE glycopeptide and state what this glycopeptide binds to within a named bacterium and how…

A: Glycopeptide are a class of drug of microbial origin that are composed of glycosylated cyclic or…

Q: feeding formulas

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

Q: If the bacteria within your medium suddenly die, can an alteration in osmotic balance be the reason…

A: The passage of water through a membrane is known as osmosis. The movement of water to the side of…

Q: If coliform bacteria are native to human colons, why the big concern over coliform contamination?

A: According to the question, we have to mention the solution of the question asked above i.e. If…

Q: Bacteria in the genus Clostridium are known for living within the deepest areas within puncture…

A: A genus of bacteria called Clostridium is well known for its capacity to flourish in significant…

Q: Conditions for an average autoclave run are and bacterial endospores. O 21 degrees C/5 psi/5…

A: Autoclaving is the means of wet mode of sterilization. Autoclaves use high temperature combined with…

Q: Using the disc diffusion table in the previous question, which bacterium was most resistant to the…

A: Gram-positive and gram-negative bacteria have various structures. Regularly, gram-negative creatures…

Q: procedure/s in performing aseptic transfer of bacterial cultures in (include illustration) (1)…

A: Aseptic technique is most commonly used in microbiology and biotechnology lab. It refers to the…

Q: Can you describe a situation where high-level disinfection would be needed? Medium-level? Low-level?

A: Disinfection is the process in which pathogenic microorganisms are eliminated by means of chemical…

Q: Question 4 options:   bacillus   aggregation   spiral   coccus   diploid

A: The morphology of bacteria refers to their physical shape and structure. Bacteria exhibit a wide…

Q: Is this microbe a gram positive or gram negative? what is the morphology?

A: PRINCIPLE OF GRAM'S STAININGThe structure of the organism's cell wall determines whether the…

Q: Explain why gram negative bacteria in general are more toxic than gram positive bacteria.

A: Introduction : Bacteria are small microscopic prokaryotic organisms. These organisms lack a true…

Q: Bacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles…

A: Bacterial growth is influenced by many factors such as temperature, oxygen requirements, pH, source…

Q: After an antimicrobial drugs test, the following results were obtained from a disk-diffusion test…

A: The antibiotic disc diffusion test is usually performed on an agar plate. The agar plate contains a…

Q: Colin and Enterobacter aerogenes sho

A: Escherichia coli is a kind of bacteria that is generally present in the intestines of humans and in…