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Q: 1 (a)Why is the spectrophotometer set at 0.000 absorbance for the uninoculated tube of broth? (B)…

A: A spectrophotometer is an instrument that measures the number of photons (light intensity) absorbed…

Q: Nadia collected samples of water from Tasik Harapan, Universiti Sains Malaysia to isolate and…

A: The pH of a solution indicates how acidic or basic it is.

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: 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: Measurement of Bacterial Growth @ 4°C Plot of Absorbance vs. Time (mins) -LB, pH 3.2 LB, pH 7.2 -LB,…

A: Bacterial growth occurs when a bacterium divides into two daughter cells, a process known as binary…

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…

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

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Q: Which of the following is often added to wine to inhibit growth of the natural microbial populations…

A: Wine production:                        In red wine, the role of malolactic fermentation act as a…

Q: Why mightproteorhodopsin make a bacterium such as Pelagibacter morecompetitive in its habitat?

A: Proteorhodopsin(pRhodopsin) is a family of transmembrane proteins which is the most abundant retinal…

Q: You inoculated two tubes of liquid cuture media with 100 bacterial cells and incubated one tube at…

A: "Microbiology" is the study of microorganisms and associated topics. Microbiology has gone a long…

Q: Biofilms represent an important environmental niche. A) How does growth on a surface differ from…

A: Biofilm is the aggregation of microbes on an inanimate surface or any living surface. They first…

Q: Based on the following data, which bacteria is most likely a human pathogen? Bacteria E.coli S.…

A: The quantity of light absorbed by the solution or sample is called absorbance or optical density. In…

Q: If a experiment took place with culture of Ecoli What happens to the ampicillin flask when added to…

A: We are answering 2 sub parts of first question For rest of the question Pls repost.

Q: In growing E.coli, why is that (reasons) they do not grow after doubling time under 20 degrees…

A: In a core typical range of its growth temperatures (20 to 37°C), Escherichia coli cells will grow…

Q: biofilm-producing bacteria

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

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Q: Which statement among A -D is false? A) O Active transport processes allow a bacterium to maintain…

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A: Bioremediation is a field of biotechnology concerned with the removal of contaminants, poisons, and…

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A: Answer is d.) a and c.

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A: The small microscopic, unicellular organisms that are generally not visible to the naked eye are…

Q: What would you need to culture the following microorganisms? (Note the hints and/or choices after…

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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…

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A: There are two terms that are used in microbiology to determine the effect of antimicrobials. They…

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A: Meat is rich in protein, and fat, and is a very nutritious food. It is obtained from various sources…

Q: What is believed to be the concentration of bacteria in soil? 109-1010 cells/g dry weight 105-106…

A: Introduction Bacteria are the unicellular living cells/organisms belonging to the domain prokaryote.…

Q: ) = 80e−0.05t + 8(t + 1)−0.5. Her model says that C(t) is the number of coliform group bacteria…

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A: In microbiology, there have different types of culture mediums that are commonly used to grow…

Q: Which of the following is true regarding microbial tests that lead to color change in tubes used to…

A: Option 1 and 4 are correct. There are multiple tests involving color change for bacteria…

Q: Why do we use the term CFU (colony forming unit) instead of reporting bacteria per ml? Explain.

A: The  bacterial species are responsible for causing several diseases within the human body. So, for…

Q: Consider the table below. What is the TDT for E. coli at 70 C? Please include the unit.

A: The image displays a table showing the lethal effects of heat on E. coli at various temperatures and…

Q: The UWC Biotechnolo class undertook a study to determine the microbiological quality of mince-meat…

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A: Mycobacterium tuberculosis, the bacteria that causes tuberculosis belongs to the family of…

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A: Cell biology is the investigation of cell design and capacity, and it spins around the idea that the…

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: What are other denitrifying bacteria that are related to this?

A: Other denitrifying bacteria are Pseudomonas, Alcaligenes, and Paracoccus.

Q: Your microorganism produce black color in peptone iron agar grown at 37 degrees Celcius…

A: Enzymes are the biological catalysts that have the ability to increase the rate of metabolic…

Q: MacConkey agar is often used to differentiate E. coli from other Gram-negative rods. The recipe for…

A: MacConkey agar is a selective and differentiative medium that was developed by Alfred Theodore…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.