Why do most iron-oxidizing bacteria grow at anacidic pH?

Q: What is the process by which bacteria convert nitrogen gas in the air to ammonia ?

A: Almost 80% of the atmosphere is made of nitrogen. It is an important constituent to make up bio…

Q: What protein is thought to control the shape of cells ofCaulobacter?

A: Bacteria are a member of a large group of unicellular microorganisms. It has cells walls, but lack…

Q: Do bacteria that exhibit an anaerobic life style require catalase?

A: An anaerobic organism is an organism that does not require oxygen for growth. The anaerobic…

Q: How is it possible for a bacterium to grow in a hypertonic environment?

A: Microbiology is the science of microbes. Microorganisms aid in the creation of various foods, the…

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: List two metals that are oxidized by sheathed bacteria.

A: The procedure in which atom or compound loses an electron termed oxidation. Metals get easily…

Q: Why are endospore forming bacteria commonly found in soil?

A: A bacteria is a cell which is susceptible to a variety of environmental stress. Any environmental…

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: Would an obligate anaerobe or an obligate aerobe be more likely to produce catalase? Why?

A: Introduction :  obligate anaerobes are those bacterium that can live only in the environment…

Q: With respect to sulfate-reducing bacteria and acetateas substrate, which genera contain “incomplete…

A: Sulfate-reducing bacteria are the bacteria that exhibit sulfate dependent anaerobic respiration.…

Q: In the traditional alkaline lysis method, what is the purpose of SDS in sokution 2?

A: A bacterial cell has additional circular DNA (called plasmid) in addition to the chromosomal DNA.…

Q: If Clostridium botulinum is an anaerobe, how might botulinum toxin get into food?

A: Answer: Clostridium botulinum is the bacteria which is responsible to cause botulism in humans. This…

Q: Why do some bacteria grow in the presence of salts?

A: Carl woese in 1990, devide living world in three groups or domains Archaea, Bacteria and Eukarya.…

Q: Menaquinones is produced by Flavobacterium meningosepticum via submerged fermentation with 60%…

A: Menaquinone are commonly known as vitamin K2. The structure of compound indicates that the compound…

Q: What steps are necessary to ensure the sterility of materialcontaminated with bacterial endospores?

A: During endospore formation, the bacteria protoplasm is condensed to a limited volume, which leads to…

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

A: * Chemolithoautotrophs are autotrophic organisms gets their energy that is ATP from oxidation of…

Q: What metabolic process creates the rotten-egg smell characteristic of many anaerobic environments?

A: Hydrogen sulfide gas has the chemical formula H2S and possesses a characteristic rotten eggs smell.…

Q: What specific essential nutrient is required by a particular species of bacteria to survive and…

A: In the field of microbiology, the growth and proliferation of bacteria hinge significantly on the…

Q: what is the optimal growth conditions of E.coli in freshwater. discuss it in detail.

A: Escherichia coli (E. coli) is a Gram negative, rod-shaped bacterium that is commonly found in the…

Q: Clostridium tetani is a common soil bacterium and causes tetanus. Would you expect C. tetani to…

A: Clostridium tetani, a Gram-positive rod that forms a terminal spore is commonly found in the soil,…

Q: Describe the metabolism for each of the following Bacteriaand state whether the organism is an…

A: Bacteria are single-celled prokaryotes ubiquitous in nature. As such, they can be found in different…

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: What factors can cause a lag phase in a bacterial growth curve?

A: The bacterial growth curve represents the number of live cells in a bacterial population over a…

Q: hy Are Mycobacteria Acid Fast?

A: Acid-fast bacteria, commonly known as acid-fast bacilli or simply AFB, are a type of bacteria that…

Q: how do bacteria detoxify toxic oxygen from metabolites

A: OXYGEN TOXICITY:- The oxygen molecule that is single and excited is very reactive in its nature. So,…

Q: What is a major habitat for many species of Acidobacteria?

A: Acidobacteria   Acidobacteria is a species of bacteria. Members of this species vastly differ…

Q: How is the presence or absence of viable endospores related to sterility?

A: Endospore is a resistant asexual spore that develops inside the bacteria under the extreme…

Q: 1. Clostridium butyricum does not appear to have superoxide dismutase (SOD) and catalase enzymes.…

A: Note : We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: What is the mechanism by which enterococci are able to grow in high salt conditions?

A: The Enterococci are facultative anaerobes, gram-positive coccus that appears to be in short chains…

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

A: Chemolithoautotrophs donot have any organic electron acceptor and hence they have devised an…

Q: 1. Select the correct answer to fill in the blank. If glucose was no longer available, pyruvate…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: What characteristics of azotobacter species protect their nitrogenase enzyme from inactivation by…

A: Nitrogen fixation is the process by which atmospheric nitrogen (N2) is converted into a biologically…

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: What is the chemical constituent responsible for the acid-fast property of Mycobacterium species?

A: Mycobacteria are fungus like bacteria. These are the slender rods, form mould-like pellicle in…

Q: Do facultative anaerobes require a functional oxidase, why or why not?

A: The bacteria is the unicellular prokaryotic organism that maintains a definite shape since it…

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

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

Q: Why would it be beneficial for bacteria to form endospores

A: Endospores are the non-reproductive structures that are produced by the bacteria. They are dormant…

Q: Your lab is determining the oxygen growth requirements of several different bacteria. For this…

A:

Q: What other bacterial genus is acid-fast?

A: Acid fast bacteria are gram positive bacteria . They are unique among prokaryotes and normal gram…

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: Why is it possible for bacteria tosurvive on acetic acid as a sole carbon source, but not…

A: Carbon is necessary for living organisms as it forms various types of bonds. It forms important…

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.