A scientist isolates a new species of prokaryote. He notes that the specimen is a bacillus with a lipid bilayer and cell wall that stains positive for peptidoglycan. Its circular chromosome replicates from a single origin of replication. Is the specimen most likely an Archaea, a Gram-positive bacterium, or a Gram-negative bacterium? How do you know?

Q: A newly developed super chemical, Toxotene, is developed by Evil Science, Inc. While transporting…

A: Bacteria is also utilized as a bioremediation agent to degrade and clear up spills in the ocean.…

Q: What is meant by a bacterial “colony” or colony-forming unit?

A: Introduction A colony is made up of two or more conspecific individuals who live in close proximity…

Q: A newly discovered pigmented microbe contains a capsule and flagella, but no chloroplasts or cilia.…

A: Prokaryotic organisms are single-celled organisms that are microscopic in size generally and lack…

Q: Which of the following is not a form of reproduction? a) Vertical gene transfer b)Horizontal gene…

A: Reproduction means to reproduce. It is a biological process by which an organism reproduces an…

Q: Match the following structures with the group in which they can be found. Structure A cell wall made…

A: Different organisms poses specific characteristics by which they can be classified. Those…

Q: different environments. Anerobic organisms need oxygen to survive, while aerobic organisms can…

A: Distinction of aerobic and anaerobic respiration depends on the oxygen requirement. There are two…

Q: The average bacterium is approximately __ µm in diameter and a typical Eukaryotic nucleus is…

A: The cell is the structural and functional unit of life.  The first non-living cell from the cork was…

Q: Antibiotics that target the cell wall have no effect on the existing peptidoglycan. So how does the…

A: Antibiotics are small chemical molecules that attack the target bacteria and interfere with their…

Q: Explain why a jar of jelly can be left open on the kitchen counter for prolonged periods of time,…

A: Most of the food substances possess sufficient nutrients that support the growth of the microbes.…

Q: All of the following are possible configurations of bacteria EXCEPT? a-Monococcus b-Streptococcus…

A: A "microbe" is a living entity that is so tiny that it cannot be seen with the naked eye.…

Q: Archaea are generally resistant to penicillin since they lack a peptidoglycan layer. Select one:…

A: These are single celled organisms which are somewhat similar to bacteria and somewhat like…

Q: What do you know about the ecology of the first cells that might suggest that we should look for…

A: Earth is so far the only planet that has the capability to sustain life on it. There are many…

Q: Bacteria are classified in which of the following domains?     Eukaryote     Prokaryote…

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

Q: Tetracyclines are another kind of antibiotics that are made by fungi. They work by inhibiting…

A: Most of the microbes release some secondary metabolites;which are not required for their growth and…

Q: Why do some microbiologists disagree with classifying bacteria and archaea as “prokaryotes”?

A: Organisms are broadly classified as eukaryotes and prokaryotes. Eukaryotes are organisms that have a…

Q: How are bacteria classified according to: Number of Cells Size of Cells Presence or Absence of…

A: Bacteria are classified into different groups based on several characteristics:Number of Cells:…

Q: ou isolated a new microorganism that has single cells and appear to lack a nucleus.Chemical analysis…

A: Three domains of life are Archaea, Bacteria, and the Eucarya. Prokaryotes include domain bacteria…

Q: Your right-handed TA has pressed her hands onto agar plates.  There are four plates total--left hand…

A: It is found that female hands consist of a more diverse microbial population than that of a male's…

Q: The peptidoglycan of bacteria has been compared with the chainmail worn beneath medieval knight’s…

A: Analogous functions are defined as the organs of different animals with different structures but…

Q: What do you mean by domain bacteria? Explain it briefly

A: Prokaryotes that people frequently come into contact with are included in the domain of Bacteria.…

Q: Bacteria and archaea are similar in size.  Explain what other characteristics bacteria and archaea…

A: Prokaryotes ,consists of eubacteria and archaea. Eubacteria is a true bacteria . Prokaryotic cells…

Q: Are there any bacteria made of more than one cell?

A: The cells are the structural and functional units of all living organisms. On the basis of the…

Q: According to Philip Bell’s viral eukaryogenesis hypothesis, genes for DNA replication, RNA…

A: DNA replication, RNA transcription, protein translation, and histone proteins are the terms related…

Q: In the Griffith experiment, why didn't the bacteria from rough colonies harm the mice? Because they…

A: Bacteria like Streptococcus do not have membrane-bounded organelles, can reproduce individually,…

Q: What cellular structure protects bacteria from drying out? Peptidoglycan Glycocalyx Fimbriae…

A: Bacteria are single celled microorganisms, Which can't alive in a dry surface with a humidity or…

Q: If you do not see single colonies on some of the plates, explain what might have happened to the…

A: A bacterial colony is a mass of bacterial cells originating from mother cells, they grow on solid…

Q: i) summarize the similarities between the bacteria and archaea, ii) what are the differences between…

A: Prokaryotes are unicellular organisms that contain only a single cell. They are the simple cells…

Q: From which microbe did mitochondria arise? What is the reason behind this belief?

A: Mitochondria is a cell organelle that is the double membrane-bound structure present in the cell.…

Q: Bacteria were originally classified as one Kingdom called Monera. Why are they now in two distinct…

A: R.H . Whittaker was the scientist who divided the organism into 5 kingdoms and gave 5 Kingdom of…

Q: Describe why a biofilm is so resistant and able to withstand standard antibiotics. What…

A: Communities of bacteria that stick to surfaces and create a matrix of extracellular polymeric…

Q: Oxygen in the atmosphere is essential for human life. How can some bacteria grow in the absence of…

A: Oxygen is essential for respiration, the energy-producing process that drives most living things'…