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Q: Why is it important to reduce the amount of biodegradable organic matter and nutrients during sewage…

A: It is single type question related to waste water management and is explained in the following step.

Q: Soil-based nitrogen-fixing bacteria appear to be highly vulnerable to exposure to UV radiation.…

A: Bacteria are the most important microorganisms to the food processor. Some bacteria are beneficial…

Q: . How will pH and aw will affect the growth of spoilage microorganisms on food?

A: Food spoilage is caused by microbes. The main cause of food spoilage is invasion by microorganisms…

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: List the different type of bacteria depending on the salt concentration required for their growth?…

A: Halophiles are found in  three domains -Inside the Bacteria  halophiles depend on salt concentration…

Q: Which of the following statements regarding low temperature storage is FALSE?   Question options:…

A: Controlling microbes is critical for preventing disease spread.

Q: How do microbial growth factors inhibit (stop) microbial growth ?? 2-What are the consequences/…

A: Hello! Since you have asked multiple questions, we will solve the first question for you. If you…

Q: Which of the following bacteria is an acid fast ? a) E.coli b)Pseudomonas aeruginosa c) Bacillus…

A: Introduction The property of an organism to resist the decolorization by acids during the staining…

Q: Could you explain the difference ( and possibly show the difference) between a growth on Agar slants…

A: Growth of cultures in slants and broth can provide us with useful information regarding their…

Q: Which of the following bacteria can survive in in temperatures ranging from 39°F (4°C)---to 99°F…

A: Bacteria are single-celled microorganisms that can be found in every environment on Earth. They are…

Q: Microbial respiration of arsenate has been found to: A. influence the mobility or transport arsenic…

A: Respiration is the process of the metabolism of biological molecules to generate energy. Energy…

Q: An acidophile would grow best at a pH of: A.6 b.2 c.12 d.7 e 9

A: The optimum pH is the pH at which the enzyme works efficiently. Because the enzymes are found more…

Q: The image depicts indole results on SIM agar for Sulfur Reduction Please help me to figure out its…

A: Introduction:  SIM medium js used to test three things as the name suggests. These include Sulfur…

Q: How could you determine whether the turbidity in your LB tube was from a mixture of different…

A: Introduction: The term "turbidity" describes how cloudy a solution is. Turbidity in a Luria Broth…

Q: The following data were obtained by incubating gram-positive bacteria in nutrient medium +…

A: Gram-positive bacteria are bacteria that test positive in the Gram stain test, which has…

Q: The mud at the bottom of a Winogradsky column is usually found to have a black colour. Explain why?

A: Sergei invented the winogradsky column to view the enrichment of different microorganisms of various…

Q: What is it mean: tempering? Select one: a. dissolution b. pre-crystallization c. melting of…

A: Tempering is a directed pre-crystallization method Or Tempering is also called pre crystallisation…

Q: Please refer to the figure of an agarose gel below to answer the questions. Why is it meant by the…

A: Agarose gel electrophoresis is a fundamental technique in molecular biology that is used to view and…

Q: Which of the following types of bacteria can contaminate water sources in hospitals and also cause…

A: Bacteria are small single-celled organisms.Bacteria are found almost everywhere on Earth and are…

Q: A microorganism found living under conditions of high ________ is a barophile.   carbon dioxide…

A: A microorganisms naturally grow in conditions that are far from optimal, which causes them to become…

Q: Escherichia coli but not Pyrolobus fumarii will grow at 40°C,while P. fumarii but not E. coli will…

A: Escherichia coli is a Gram-negative, rod-shaped, facultative anaerobic bacteria. It usually inhabits…

Q: What specific biological compound(s) present in moringa oleifera leaves is/are responsible for its…

A: Moringa oleifera are rich in vitamins A, C, B1 (thiamin), B2 (riboflavin), B3 (niacin) B6 and…

Q: A food consumer stored their food at 4 degree celsius without washing, hoping to preserve it for a…

A: Refrigeration doesn't kill the bacteria as such but makes their enzymes and metabolism inactive and…

Q: Besides being able to tolerate a range of pH some bacteria change their environment by producing…

A: Due to metabolic activities of the bacteria/microbes, different bye-products are produced which…

Q: In a nutrient broth, where do microorganisms acquire their requirements for mineral  elements like…

A: Microorganisms are grown in laboratories using culture media. Culture media contains all the…

Q: Two factors affecting the amount of usable nitrogen in thesoil are a limited number of…

A: Nitrogen is critical as it forms one of the major components of chlorophyll, which is used by plants…

Q: The following four chemicals commonly found in defined growth media contain all of the necessary…

A: The atomic macronutrients are required in higher quantities than the micronutrients. They are…

Q: What are the 2 ways of production that will allow a product to be classified as an essential oil?:…

A: BASIC INFORMATION ESSENTIAL OILS  These liquid is basically hydrophobic and concentrated in nature.…

Q: Which group of microorganisms requires high osmotic pressure to survive? Osmolyphiles Facultative…

A: According to the question, we have to find out which one of the following microorganisms requires…

Q: Where do spoilage microorganisms come from? What are some of the most common spoilage…

A: Food spoilage is a metabolic process which causes food to be undesirable or unacceptable for…

Q: A Food Microbiologist would like to determine all the possible effects of temperature and pH on…

A: Rate of growth refers to the The rate at which the number of organisms in a population grows. This…

Q: a. Is there a microbe that could grow on a medium that contains onlythe following compounds…

A: Nutrients are essential for the growth of micro-organisms. It plays essential for the proper growth…

Q: How would you describe vulnerabilty in times of calamities?

A: Calamity is an event that happened naturally and causes harm and misery. Calamity causes widespread…

Q: Regarding turbidity, which of the following statements is true? Group of answer choices Decreased…

A: Population number or mass can be determined to measure microbial growth. Cell mass can be determined…

Q: We’re going to make our own yogurt using mixed bacteria cultures which contains Lactobacillus casei,…

A: Yogurt This is defined as the food that is produced by the bacterial fermentation of milk. The…

Q: You have 12 mL of cells you need to treat with Hydrogen Peroxide (H2O2), such that the final…

A: Given , Volume of cells = 12 mL Final concentration of H2O2 = 50 uM The amount of 30 mM stock…

Q: Which form of the Coomassie dye do you expect to be more prevalent in a low pH solution? Group of…

A: Coomassie dye binds to proteins through ionic interactions between sulfonic acid groups and…

Q: If I add 10 microliters of a culture at 106 cells/mL to 990 microliters of nutrient broth, what is…

A: Cell density refers to number of cells present per unit volume. It is usually expressed in cells/mL.

Q: y do some household chemicals state that they will kill 99.9% of germs. Based on your knowledge of…

A: Antimicrobial agents are chemicals that are utilizing to sterilize or clean surfaces and find…

Q: Which of the following statements regarding low temperature storage is FALSE?   Question options:…

A: Introduction :-  In households, most of the daily use products are stored in refrigerator for their…

Q: Coliforms are commonly used as an indicator of drinking water quality. As we discussed, in March and…

A: The Coliforms are commonly used to indicate drinking water quality. In March and April of 1993 there…

Q: Some marine bacteria, such as Cytophaga species, live and grow well inside fish guts and in waters…

A: Cytophaga  is responsible for the cold water disease in trout and results in skin lesions and occurs…

Q: What are the possible solutions for burning of waste due to absences of garbage collector.

A: Waste management is an important facet in todays life considering the rapid in crease in…

Q: Which of the following is probably the cause of most human diseases on the skin which is salty? an…

A: Mesophiles are microorganisms that grows optimally at the temperature between 20 °C to 45 °C.…

Q: Why did we add agar after we measure the pH?

A: pH means p stands for potential or power.H stands for Hydrogen atom.It is the power of the Hydrogen…

Q: What is the most likely biosafety level of your introductory microbiology lab classroom?

A: A biosafety level (BSL), also known as a pathogen/protection level, is a set of biocontainment…

Q: What is water activity and what role does it play in the growth of microorganisms and yeasts and…

A: Water activity is the partial vapor pressure of water in a solution divided by the standard state…

Q: do they consume or produce methane, i am stuck Methanogens _______. Complete the statement to make…

A: The small, microscopic, and mostly unicellular organisms are called microorganisms. They are of…

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.