was used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid

Q: A clinical microbiologist is studying a microbe that can cause infections and gastrointestinal…

A: The given characteristics of the microbe are (i) filamentous at 20-28oC, (ii) exists as round/ovoid…

Q: A cow is given an antibiotic to treat an infection in its digestive system.  Antibiotics kill…

A: The antibiotics are specific molecules that arer mainly released by the bacteria and some fungi.…

Q: All of the following statements are correct regarding normal flora except Select one: a. The…

A: An organism's normal flora comprises all the microorganisms that live in the organism's external or…

Q: Which of the following statements is true? Select one: O a. Gram-positive bacterial walls have a…

A: Answer: PEPTIDOGLYCAN : It is a amphipathic component which acts as a lipid anchor , embedding…

Q: Which of the following is NOT true about bacterial endospores?   A. They are produced by bacteria…

A: The process of formation of endospore is called Sporulation. It is formed in some selected species…

Q: Which statement best describes why antimicrobial drugs that affect cell wall synthesis tend to have…

A: Antimicrobial drugs are the class of drugs that are used to treat a microbial infection. They…

Q: Mesohyl contains: a. a polysaccharide gel and dead cells. b. a collagen-like gel and suspended cells…

A: Step 1 The invertebrates do not contain bony structures, such as cranium and vertebrae. The simplest…

Q: A patient is experiencing high fever and body aches from an infected skin wound. You suspect a…

A: As give in the question that Bacteria is gram positive :-

Q: A certain medium has the following composition:Glucose     15 gYeast extract 5 gPeptone 5 gKH2PO4 2…

A: Microbiological media is defined as a growth media used to grow bacteria and fungi in laboratory.…

Q: An infectious dose of several million cells in enteric infections seems like a lot. a. In terms of…

A: Enteric bacteria are organisms that colonize the gut. But there are several pathogenic enteric…

Q: What do you call a finger-like projection that arises from epithelial layer in some organs that…

A: Answer

Q: Endotoxins are A) O Associated with lipid A of the LPS layer. B) O Secreted from the cell. C) O Part…

A: Endotoxins are substances, especially toxins, which are resistant to heat and are found in a wide…

Q: Which statement is NOT a concept in microbes present in animals? A. Each individual animal has its…

A: Microbes usually are unicellular and microscopic organisms . These are uniquitous  that is found…

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

A: Bacteria are prokaryotes which fall under the kingdom of Monera. The structure of a bacterial cell…

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: UV light is able to damage bacterial cells by:a. preventing mitosis b. damaging DNA c. dissolving…

A: UV stands for Ultraviolet rays. These rays kill bacterial cells.

Q: Which bacterium does not have gelatinase enzymes O A. Staphylococcus aureus B. Bacillus subtilis O…

A: Gelatin hydrolysis test is used to identify the bacteria which can digest or degrade the gelatin by…

Q: The broth culture of Bacillus subtilis showed growth even after extended heating in a waterbath,…

A: Bacillus subtilis is a gram-positive and rod-shapes bacteria commonly found in soil and digestive…

Q: guesdon. You treat a suspension of Staphylococcus aureus with lysozyme enzyme dissolved n 25 mM Tris…

A: The above experiment shows the effect of lysozyme on Staphylococcus aureus and Pseudomonas…

Q: Which of the following bacterial groups would you expect tobe MOST likely associated with human…

A: Bacteria are prokaryotic organisms that belong to the domain Bacteria. They do not possess a true…

Q: Which of the following statements is a reason why Acid-Fast Bacteria resist the ?Gram stain Because…

A: Which of the following statements is a reason why Acid-Fast Bacteria resist the Gram stain

Q: Bacterial LPS a. exists in Gram negative bacteria b. is the glycocalyx C. contains protein d. made…

A: Ans: Bacterial LPS or lipopolysaccharide are endotoxins and its description has been provided in…

Q: A person in England arrives at a medical clinic with a fever and swollen lymph nodes shortly after…

A: The Gram negative bacterium, Yersinia pestis, is the causative agent of bubonic plague. Bubonic…

Q: Which of the following is NOT a true statement about bacterial structure and function?   A.…

A: Microscopic unicellular small organisms of an average diameter of about 1 μm. May range from 0.1-10…

Q: Mycobacterium tuberculosis is very difficult to stain because of the A) presence of ribosomes in…

A: Mycobacterium tuberculosis is a bacterial pathogen responsible for causing tuberculosis in human…

Q: Which of the following statements about antibiotics is TRUE? a) Antibiotics are used to disinfect…

A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism can be harmful to…

Q: There are estimates that the microorganisms present in the human body outnumber the cells of the…

A: Microorganisms can be found in nearly any portion of the human body, counting the eyes, the…

Q: Imagine you are a doctor treating a patient with a skin infection caused by a facultative anaerobic…

A: Hyperbaric oxygen therapy, or HBOT, is a form of treatment for carbon monoxide poisoning, gangrene,…

Q: Which antibiotic affects cell wall synthesis?a)streptomycin b) erythromycin c) tetracycline…

A: Antibiotics are a form of antimicrobial drugs that fight against disease-causing pathogenic…

Q: The chemical found in gram-positive cell walls and not in gram-negative cell walls reacts with the…

A: Lipopolysaccharides (LPSs) are the large, complex molecules that contain lipid and carbohydrate. The…

Q: Staining microorganisms provides a wealth of information about them. A. As a laboratory technician,…

A: Gram staining technique is one of the most common techniques used to distinguish and classify…

Q: Which of the following bacteria would likely be most susceptible to an antibiotic that targets the…

A: 1a- The gram positive bacteria have thick porous peptidoglycan layer which is the primary component…

Q: What feature does Bacillus and Clostridium have in common that is not found among most other…

A: Step 1 Hello. Since you have asked multiple questions, we will solve the first question for you. If…

Q: Antibiotics are medicines that are used to fight bacterialinfections. These medicines kill…

A: Yes, Antibiotics are the medicines that are used to fight bacterial infections. Prokaryotic cells…

Q: 1. A bacterium is grown in an environment with tryptophan added to the medium. Describe how the…

A: Need to find how the bacteria responds to tryptophan added into the medium.

Q: What is the structure being described? b. What is the chemical composition of this structure? c.…

A: Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and…

Q: Which of the following is not consistent with an endospore? a. It is not a means of asexual…

A: The primary function of most of the endospore is for ensuring survival of a bacterium which goes…

Q: Robert Koch (a) proposed a set of guidelines to demonstrate that a specific pathogen causes specific…

A: Microorganisms are small living organisms some of which are pathogenic and cause diseases.

Q: Which of the following is NOT characteristic of the glycocalyx found in bacteria? Select one: A) a…

A: Glycocalyx is an additional layer outside the cell wall of some bacteria two types of glycocalyx are…

Q: Antibiotic A: 0.5 kDa protein, targets peptidoglycan Antibiotic B: 20 kDa protein, targets…

A: INTRODUCTION An antibiotic is a sort of antimicrobial substance active against bacteria. it's the…

Q: The process of freezing food:  a. makes oxygen unavailable to pathogenic bacteria  b. makes liquid…

A: c. slows bacterial metabolism to a very low rate

Q: A bacterium that produces an extracellular enzyme may:  a. cause a boil      b. resist an…

A: Extracellular enzymes are an exoenzyme which is secreted by bacteria and functions outside that…

Q: Pseudopeptidoglycan is a characteristic of the walls of ________. a. eukaryotic cells b. bacterial…

A: The cell is the basic part of life for the living beings on this planet. Cells are made up of…

Q: a. b. C. « 000000000 Use the diagram to match the correct answers. a. ( Choose ) [Choose] possesses…

A: Any bacteria or archaeon with a spherical, oval, or usually round form is called a coccus. Bacteria…

Q: Contrast a cell Streptococcus pyogenes (a bacterium) with the unicellular protozoan Entamoeba…

A: Streptococcus is a prokaryote and Entamoeba is a eukaryote.

Q: Bacterial cells having flagella attached at both ends of the cell are called: a. bitrichous b.…

A: The flagellum is a helical-shaped structure found in some bacteria that is made up of a protein…