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

Q: What is the principal reason that organisms such as yeastproduce alcohol?

A: Yeast is considered as the facultative anaerobes, which is used in many industries such as bread…

Q: When using CH4 as electron donor, why is Methylococcuscapsulatus an obligate aerobe?

A: Methylococcus capsulatus is an obligate aerobe that uses CH4 as a carbon source. It is a…

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: 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: Why are ether-linked lipids in Thermodesulfobacterium unusual?

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…

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: 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: What role does iron play in the redox metabolism of Thiobacillus ferrooxidans?

A: Acidithiobacillus ferrooxidans is a type of gram-negative, autotrophic, and rod-shaped bacteria. It…

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: What kind of phototrophic bacteria make endospores?

A: Endospore is a dormant, tough, and non-reproductive structure produced by some bacterias and its…

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: 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 is the life cycle of Halobacterium salinarum?

A: Halobacterium salinarum is a bacteria that is rod-shaped single-celled and motile and this bacteria…

Q: In what ways are the dissimilative iron-reducingbacteria Shewanella and Geobacter similar, and in…

A: Similarity between iron reducing bacteria Shewanella and Geobacter is:- Both the species  Geobacter…

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: Is H2S a substrate or a product of the sulfate-reducing bacteria?Of the chemolithotrophic sulfur…

A: Chemolithotrophs use electron benefactors oxidized in the cell, and channel electrons into…

Q: Why would sulfur-oxidizing bacteria store sulfur? +

A: BASIC INFORMATION BACTERIA  It is one of the type of biological cell. They belong to prokaryotic…

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

A:

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…

Q: why are psychrotrophic bacteria incubated at 7 degrees

A: Each species of microbe has a preferred temperature that lies somewhere between its characteristic…

Q: In what ways is Chloracidobacterium thermophilumsimilar to green sulfur bacteria, and in what ways…

A: Bacteria are member of a large group of unicellular microorganisms. Bacteria have cell walls but…

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…

Q: What is the effect of pH on microbe's growth? Define halophiles, osmotolerant and barophiles.

A: Microbes are tiny living things that are viewed surrounding us and are as too little to be seen by…

Q: In what phase of the bacterial growth curve do cells die at rapid rates?

A: The bacterial growth is the complex process which involves anabolic and catabolic reactions which…

Q: If triclosan is the active agent in antibacterial handsoaps, what group of bacteria can grow freely…

A: Antibacterial soap is the one that contains the chemical ingredients which assist in killing the…

Q: What is meant when it is said that a bacteria is an obligate anaerobe?

A: Bacteria earns energy via two modes of respiration i.e. aerobic and anaerobic.

Q: What are the steps in nitrate reduction as carried outby Pseudomonas species? What is this metabolic…

A: Pseudomonas is the genus of bacteria that belongs to the Pseudomonadaceae family. It is a…

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.