Q: Which of the following type of transport processes is commonly used by bacteria in a…
A:
Q: photosynthetic bacterium Chromatium most closely related? Briefly explain why? a. Cyanobacteria b.…
A:
Q: Nitrogen fixing bacteria can use atmospheric nitrogen as their sole source of nitrogen. Imagine you…
A: The microbes are grown in an artificial culture medium in a laboratory set up. These media provide…
Q: How might the use of isozymes permit an aquatic organism to persist with a gradual increase in…
A: The aquatic organisms can acclimatize and adjust to the changing surrounding with the help of…
Q: an optional anaerobic bacterium usually grow better with oxygen than without
A: Oxygen is important for many living organisms to survive and those organisms whose survival depends…
Q: Dr. Cantu discovers an archaeon living in a hot spring in the El Tatio geyser field in Chile where…
A: Answer :- Option (C) is correct. - Thermophilic.
Q: Which of the following enzymes would you expect to find in an organism that is obligate aerobe?
A: Obligate aerobes organism that require oxygen for their growth and survival. These organisms use…
Q: Prokaryotes can move in response to many stimuli in their external environment. The response of a…
A: Answer : Chemotaxis.
Q: Aliivibrio fischeri is a marine bacterium that uses quorum sensing to regulate bioluminescence.…
A: Bioluminescence is the phenomenon of emitting and producing natural light in living organisms. Light…
Q: Which is true regarding bacterial and archaea species that use nitrogen and sulfur compounds in…
A: Microbes primarily bacteria utilize nitrogen or sulfur compounds as part of their metabolic activity…
Q: A microbe cannot grow without using enzymes. Explain why bacteria are limited to growth within a…
A: Introduction Bacteria are the smallest microscopic unicellular organisms on the earth. Bacteria can…
Q: How would you design a regulatory system to makeEscherichia coli use succinic acid in preference to…
A: Catabolite repression is a global control of microorganisms. It assists the microorganisms to adopt…
Q: The prokaryotes known as methanogens require ________ environments. anaerobic aerobic acidic high…
A: Prokaryotes are primitive organisms with nucleoid region. They don't have well defined nucleus and…
Q: Name any two free – living nitrogen fixing bacteria.
A: The nitrogen cycle is a biogeochemical cycle in which the inert nitrogen is converted into the…
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: What terms would describe a prokaryote that has is covered in a thick peptidoglycan layer, gets it's…
A: Prokaryotes are the organisms without Any proper nuclear envelope. Their nucleus and the cytoplasm…
Q: What terms would describe a prokaryote that is covered thin peptidoglycan layer between two…
A: Aerobic : When the body produces energy by using energy from the SUN. For example Plants . Anaerobic…
Q: For a bacterium that prefers a neutral pH and has an optimal (best) growth pH of 7, how would growth…
A: The optimum pH for the growth of microbes is the favorable pH for that organism. The lowest pH value…
Q: Identify the best taxonomic category that best describes the prokaryote in the given scenario.…
A: In the question, archae living in hydrothermal vent was cultured on the vent itself. The best…
Q: The major pathway of ammonium assimilation combines two reactions in organisms with rich nitrogen…
A: Introduction: Nitrogen is cycled between organisms and inanimate environments. The principal…
Q: In what environments might the following organisms be found? hyperthermophile
A: An environment, with respect to an organism, is the conditions and surrounding factors where a…
Q: What major group of prokaryotes generates oxygen by photosynthesis? Group of answer choices…
A: Cyanobacteria are the oldest organism with fossils record of 3.5 billion years, they are essential…
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: Microbes that swim with flagella use energy from ATP to make their flagella rotate. This process is…
A: One of the most striking examples of a highly flagellated and robust swarmer is Proteus mirabilis,…
Q: While bacteria can meet their nutrient needs and survive on acetic acid as a sole carbon source,…
A: Microorganisms and human beings inhabit the same ecosystem. Microorganisms are so called due to…
Q: Which group of Archaea live in anaerobic (no oxygen) conditions such as garbage dumps? Group of…
A: Introduction :- Archae are a group of single-celled prokaryotic organisms (those without a definite…
Q: Name two enzymes that are present in obligate aerobes but lacking in obligate anaerobes. What is the…
A: Obligate aerobes requires oxygen to oxidize various substrates and obligate anaerobes are generally…
Q: variation in generation time exist within a single microbial species
A: Variation in generation time exist due to in enviroment the otimal conditions vary between species .…
Q: Which of the following is the best definition of the word extremophile? O bacteria that can…
A: Extremophile are those organisms that lives in extremr environmental cinditions like extreme…
Q: a) bacteria are “obligate anaerobes.” What does this mean? On Earth, where might these organisms…
A: Obligate aerobes depend on oxygen to survive whereas obligate anaerobes require environments which…
Q: You are a bacterium. You are streaked on chocolate agar. This chocolate agar is a source of…
A: Cellular respiration and fermentation are both anabolic reactions in which organic molecules are…
Q: What terms would describe a prokaryote that lives in boiling hot springs, harnesses energy from the…
A: Prokaryotes are unicellular cells which lacks membrane bound organelles and a well defined nucleus.…
Q: Why are nitrogen-fixing bacteria ecologically important? Why are humans interested in…
A: Answer : Nitrogen-fixing bacteria ecologically important Because It is the process by which…
Q: Where will a bacterium (eg E. coli) grow best: glucose, malonate, or gluconate? Explain your answer.
A: E. coli when supplied with different sugar medium, it first uses glucose to grow rapidly and after…
Q: In anaerobic respiration, what will happen if a bacterium uses nitrates as the terminal electron…
A: Aerobic respiration requires oxygen (O2) in order to create ATP. Aerobic respiration is the…
Q: of these six organisms are autotrophic and which ones are heterothropic
A: Autotrophic organisms are usually plants and algae. They are able to prepare their own food by the…
Q: The generation time of microbacterium cells present in activated sludge is 30 minutes. If these…
A: Introduction: Cells are the most basic and basic unit of life. So, if we dissect an organism down to…
Q: We have limited the amount of glucose in this medium to one tenth that of sucrose and lactose. What…
A: TSI Agar is used for the differentiation of gram-negative enteric bacilli based on carbohydrate…
Q: what is the preferred energy source for most bacteria? what alternatives may bacteria use if their…
A: A bacteria is a small single celled organism, which are found almost everywhere on the earth and us…
Q: Why do organisms using or living in the presence of oxygen need to eliminate these chemical species…
A: INTRODUCTION Free radicles Free radicles are molecules that contain oxygen they have uneven number…
Q: do archaebacteria have autotroph or heterotroph nutrients
A: Nutrients are the components of food like carbohydrates, fats, vitamins, proteins, etc. These…
Q: Bringing glucose inside of a bacterium (via group translocation) requires energy. (a) What is the…
A: Group translocation is a multicomponent system that always involves enzymes of the plasma membrane…
Q: When both glucose and lactose are present in the media in which E. coli is growing, which is the…
A: Metabolism encompasses any and all metabolic reactions that take place within a cell or organism.…
Q: What terms would describe a prokaryote that lives in boiling hot springs, harnesses energy from the…
A: Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are found in…
Q: Classify the following attributes as belonging to either purple photosynthetic bacteria or…
A: Difference between purple photosynthetic bacteria and heliobacteria.
Q: The high rate of bacterial metabolism requires a high surface to volume ratio. Why does the surface/…
A: The surface/ volume ratio is directly proportional to the size of the organism and inversely…
Q: Which of the following organisms can use fermentation to produce energy? Select all that apply.
A: Fermentation Fermentation is a kind of metabolic process that is performed by certain types of…
Q: what does it mean if a bacteria tested negative for oxidase
A: The oxidase test in bacteria is performed to confirm the production of cytochrome c oxidase. It is a…
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…
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- Bringing glucose inside of a bacterium (via group translocation) requires energy. (a) What is the energy used for in this case? (b) When resources are limited for a bacterium, why would the bacterium be willing to spend energy to group translocate glucose?Pseudomonas bacteria have porin proteins, are resistant to the chemical triclosan, and survive and can even multiply in quaternary ammonium compounds. True or False?You are studying a new bacteria isolated from the soil by identifying the cellular structures that it makes. The presence of which of the following would indicate that your organism must be a Gram-positive bacterium? It has a cell wall with teichoic acids It has a polyhydroxyalkanoate storage granule It has an outer membrane with LPS It has a flagella
- There are many types of movement are employed by bacteria discussed in this chapter. Explain them and propose mechanisms by which energy (ATP or proton gradients) might drive the locomotion.Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive bacteria? Explain how the alcohol interacts with: 1) Gram-negative cell wall structures 2) Gram-positive cell wall structuresIf it takes 2 hours for a population of bacteria to grow from 100 cells to 1600 cells, what is the generation time of this bacterial species? 15 minutes 20 minutes 30 minutes 40 minutes
- Classify the following attributes as belonging to either purple photosynthetic bacteria or heliobacteria. Purple Photosynthetic Bacteria Heliobacteria Bacteriochlorophyll g Heterotrophic Cannot form endospores Reduced sulfur is electron donor for NAD* reduction Gram-positive Gram-negative Autotrophic Some form endospores Organic carbon electron donor for NAD* reduction Bacteriochlorophyll a or b Possess intracellular cytoplasmic Possess only plasma membrane membranesNitrogen fixing bacteria can use atmospheric nitrogen as their sole source of nitrogen. Imagine you are trying to select only nitrogen fixing bacteria from a soil sample. Could the sample be grown on a complex medium? Explain why or why not.Calculate the surface/ volume ratio of the spherical Neisseria gonorhoe bacterium. Compare this with the surface -to-volume ratio of the large eukaryote ameba Neisseria gonorhoe bacterium = 0.5 micrometer in diameter eukaryote ameba = 150 mm in diameter
- Why might clinical medicine have an interest in understanding bacterial cell division at the molecular level? Explain why a hyperthermophile would probably not be a human pathogen. Describe four factors that may have an influence on the effectiveness of an antimicrobial treatment. Explain why 70% or 80% alcohol is more effective than 100% alcohol in controlling microorganisms.If the generation time of Escherichia coli is 30 minutes, starting with 4 E. coli cells, how many cells can you obtain after 2 hours of growth? A: cellsBacterium Q had the lab results below. What can you tell me about the protein metabolism of this bacterium?which protein and amino acids can it catabolize, among gelatin, urea, phenylalanine, sulfur-containing amino acids and tryptophan? Can it desulfur proteins? Can it produce NH3 from the amino acid phenylalanine?