Gram-negative bacteria are generally more resistant to antibiotics than Gram-positive bacteria. What structure in Gram-negative bacteria (but not Gram-positive bacteria) is the basis of this difference?

Q: How does the precise structure of the cell walls differ between gram-positive and gram-negative…

A: Staining is a technique used in slide preparation to colour the specimen. With light microscopy…

Q: Which of the following is the most important structure related to microbial attachment to cells?…

A: Flagellum is microscopic hair-like structures involved in the locomotion of a cell. The flagella…

Q: Approximately how many bacterial colonies are present on plate B?

A: Bacteria are small, microscopic, and unicellular organisms that are found almost everywhere on the…

Q: A particular type of inclusion body that is used to orient bacteria in three- dimensional space in a…

A: Inclusion bodies are are proteins which are aggregated and present as particles in the bacteria.…

Q: Explain why Griffith’s mixture of harmless dead bacteria possessing capsules and harmless live…

A: The laws of inheritance was discovered by Gregor Johann Mendel who is popularly known as the father…

Q: What is the structure of the bacterial flagella?

A: The whip-like structure attached to the prokaryotic and eukaryotic organisms which act as a…

Q: Bacterial cell have inclusion bodies? What is the function

A: Inclusion bodies are present both in eukaryotes and prokaryotes and are cytoplasmic or nuclear…

Q: What are the peptidoglycans in the Gram Positive bacterial cell wall made up of?

A: Peptidoglycan is a component of cell wall of gram-positive and gram-negative bacteria.  The polymers…

Q: After a man infected with a Gram-negative bacterium was treated with the correct antibiotic for this…

A: E. coli is a gram-negative bacterium which cell wall is composed of a thin, inner layer of…

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: Differentiate between the two main types of bacterial envelope structure. Explain why gram-positive…

A:

Q: What is the unique cell wall component found in gram positive bacteria?

A: Prokaryotes are single-celled microscopic organisms belongs to domain bacteria. A prokaryotic cell…

Q: Which of the following components is not present in Gram-positive bacteria? O a. Lipopolysaccharide…

A: Ans. 1. Gram-positive bacteria:  In bacteriology, these kinds of bacteria have a thick cell wall and…

Q: Frederick Griffith conducted an experiment using 2 different strains of the bacterium Streptococcus…

A: Frederick Griffith performed an experiment using two different Strains of bacteria. The S strain was…

Q: E. coli cells have peritrichous flagella. What does this mean?

A: E.coli. is a type of bacterium. Bacteria are unicellular and prokaryotic organisms that live in a…

Q: Do all bacteria contain storage granules at all stages in their life cycle? Explain.

A: Definition:-  Cytoplasmic granules or Inclusion Bodies or Storage Granules are concentrated deposits…

Q: The cell wall of a gram-positive bacterium is composed of a thick ________ layer. A) protein B)…

A: Gram-positive bacteria, in bacteriology, are bacteria that give a positive response in a stain test…

Q: How do gram-positive and gram-negative bacteria differ in cellular structure, and how does this…

A: Gram staining is a most important  technique in the microbiology to differentiate the group of…

Q: Salmonella enterica is a gram-negative bacteria under prokaryotes which has flagella. What is the…

A: Bacteria are the most important microorganisms to the food processor. Some bacteria are beneficial…

Q: Gram-negative bacteria do not have peptidoglycan in their cell walls.  True or False?

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

Q: List 6 common bacterial shapes.

A: Bacteria is a type of microorganism and consists of a single, prokaryotic cell. They lack a…

Q: What is chemically unique about acid fast bacterial cell walls?

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

Q: Why do bacteria have flagella?

A: Bacterial flagella are rigid; the slender structure around 20 nm across and up to 20 micrometers…

Q: What is the structure of Gram Positive?

A: Introduction: Gram strain test is an important test used to classify bacteria according to the type…

Q: What is the unique cell wall component found in gram negative bacteria?

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

Q: Give the functions of the following bacterial structures. Cell wall Cell membrane LPS Ribosomes…

A: Bacteria are prokaryotic , ubiquitous microscopic structure which is one celled and is without any…

Q: Many bacteria are surrounded by a proteoglycan coat. Useyour knowledge of the properties of this…

A: Proteoglycans are proteins that are heavily glycosylated. The basic proteoglycan unit consists of a…

Q: How is Bacillus anthracis different from Spirillum volutans?

A: Bacteria are minute organism that are one celled , prokaryotic , outer cell wall formed of…

Q: In the classification of bacteria according to shape, which among the following refer to a chain of…

A: Bacteria They are unicellular prokaryotic group of microorganisms that are both beneficial and…

Q: ll might appear Gram negative?

A: Bacteria can be defined as small single-celled organisms. Bacteria are present almost everywhere on…

Q: Antibiotics are termed broad spectrum if they inhibit both Gram negative and Gram positive bacteria.…

A: Bacteria are microorganism that most commonly occur in the soil, air, water and in adverse…

Q: In bacteria with cell walls that contain LPS, which of the following is true of the LPS layer?

A: Answer - Option B - It contains Lipid A, which can have toxic effects on mammals if released.

Q: What prevents Elodea cells from becoming shriveled up like a blood cell would become if placed in a…

A: Hypersonic solutions are those which have high concentration of salt in it.

Q: A patient sample from the hospital is analyzed and found to contain peptidoglycan, NAM, NAG, and…

A: The cell wall in most of the bacteria is made up of peptidoglycan which is also known as murein. It…

Q: What shape is the gram negative and gram positive?

A: The branch of science in which we study about bacteria is called bacteriology. During experiment to…

Q: What kinds of work are carried out in a cell? Suppose a bacterium was doing the following:…

A: A cell is the functional, structural, and biological unit of all living organisms. All cells perform…

Q: does the rate of diffusion correspond with the molecular weight of the dye?

A: The rate of diffusion correspond with the molecular weight of the dye...

Q: What implications does the complex hydrophobic mycobacterial cell wall have in terms of treating…

A: The cell wall structure of Mycobacterium tuberculosis has many special features that make them…

Q: This bacterial component is found in the outer leaflet of the outer membrane of gram-negative…

A: Gram-negative bacteria are known to be involved in the etiology of severe sepsis and septic shock on…

Q: One major difference in the envelope structure between gram positive bacteria and gram-negative…

A: Bacteria are unicellular prokaryotes that are found in different habitats that might be pathogenic…

Q: What type of bacteria have flagella?

A: Flagella is a thread like locomotor appendages that extends outward from the plasma membrane and the…

Q: After a man infected with the bacterium Escherichia coli was treated with the correct antibiotic for…

A: E. coli is a gram-negative bacterium which cell wall is composed of a thin, inner layer of…

Q: what are the structures of gram negative cells?   what are the structures of gram positive cells?

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

Q: Identify the cell structure providing for cell morphology in the Staphylococcus epidermidis and…

A: Cell morphology describes the shape, structure, form, and size of cells. In order to examine the…

Q: There are many antibiotics that target the bacterial cell wall, but there are few antibiotics that…

A: The antibiotics are medicines that help stop infections caused by bacteria.They do this by killing…

Q: Which among statements A-D is not applicable to endospore formation?

A: Endospore is a highly resistant non-reproductive structure developed by gram positive bacteria…

Q: What types of acid include in the gram-positive cell wall?

A: Gram-positive bacteria are bacteria that provide a positive result in the Gram stain test, which has…