Do obligate anaerobes require a functional oxidase, why or why not?

Q: Are all organisms with oxidative respitory pathways necessarily strict aerobes? Explain.

A: Oxygen is the last electron acceptor toward the finish of the electron transport chain of vigorous…

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: 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: Which phosphorylation method is/are used by chemoheterotrophs?

A: Organisms that synthesize their own food are referred to as autotrophs and organisms that do not…

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: What is faculative anaerobe and aerotolerant anaerobe?

A: Prokaryotic organisms require different environmental conditions for their survival. Some…

Q: Which organism(s) would likely be classified as an alkaliphile?

A: The pH is a negative logarithm of the hydrogen ion concentration. It measures how many hydrogen ions…

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: 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: Would you expect a heterotrophic organism to grow in an inorganicsynthetic medium? Explain.

A: A heterotrophic organism is an organism that feeds on other animals or plants for nutrition and…

Q: Why are other microorganisms have endospores but others do not have?

A: Introduction :- Endospores are a type of dormant cell produced by some bacteria and archaea that can…

Q: How does a hyperthermophile differ from a psychrophile?

A: Microorganisms are broadly classified into four types based on their growing ability with varying…

Q: Which traits are shared among ammonia oxidizers and nitriteoxidizers?

A: Ammonia and Nitrite are the inorganic chemicals rich in nitrogen. They are used as fertilizers and…

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: How do facultative anaerobes differ from obligate anaerobes? How do they differ from aerobes?

A: Anaerobes and aerobes are the different types of organisms present in the environment. They can be…

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 is the enzyme hydrogenase useful to Desulfovibrioeven when it is not grown on H2 as electron…

A: Desulfovibrio  is a genus of a gram-negative bacteria which is a sulphate reducing. Desulfovibrio…

Q: What mechanisms do free-living diazotrophs use to protectnitrogenase from oxygen?

A: The biological fixation of dinitrogen is the most important way to access N to organisms, this…

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: Are there any types of Bacteria or Archaea that areable to oxidize ammonia to nitrate?

A: Archaea and bacteria are referred to as prokaryotic unicellular organisms. Initially, archaea were…

Q: How would a facultative anaerobe growth curve change if it was placed in the presence of oxygen…

A: Facultative anaerobes are organisms that survive in the presence of oxygen and use oxygen for…

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: Why do anaerobic hyperthermophiles sit on the lowest branches of the archaeal tree?

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

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

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

Q: What is the purpose in incubating one blood agar plate in aerobic conditions and another blood agar…

A: Blood agar plates abbreviated as BAP are enriched differential media utilized for isolating…

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: What is a microaerophile?

A: Prokaryotes require different environmental conditions for their survival. Some prokaryotes survive…

Q: 53.  Which one of the following bacteria group CANNOT survive in presence of oxygen? Group of…

A: An obligatory aerobe is a living thing that needs oxygen to survive. These organisms use oxygen to…

Q: ng using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules.…

A: In the class of chemoautolithotrophes, chemical energy is their source of carrying out metabolic…

Q: Which organism(s) would likely be classified as an acidophile?

A: The optimum growth pH is the favorable pH for organisms’ growth. The lowest value of pH that can be…

Q: How might the bacterial growth curve change if a facultative anaerobe was first monitored for growth…

A: *Facultative anaerobes are bacteria which can grow in presence or absence of oxygen.  * oxygen…

Q: Why will a strict anaerobe grow in thioglycollate broth even when the medium is exposed to…

A: Introduction :- Anaerobic bacteria are microorganisms that can thrive without oxygen. For instance,…

Q: Why is it important to distinguish between E.coli & E. Aerogenws in contaminated water samples?

A: E.coli is a rod-shaped, gram -ve, facultatively anaerobic, coliform bacterial species that is…

Q: if a bacterium lacks cytochrome C oxidase, does that make the bacterium an anaerobe? Explain?

A: Cytochrome c oxidase  is an enzyme present in the cytochrome sub unit. This is found in the electron…

Q: Why are most iron-oxidizing chemolithotrophsobligate aerobes, and why are the better-studied…

A: An obligate aerobe is an organism that requires the presence of oxygen for their growth.  During…

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

A: The lithoautotrophic bacteria are classified into two groups, one is photoautolithotroph that derive…