If a bacterial species is not susceptible to an antibacterial drug at the concentration present in a particular disk, does that necessarily mean the species is completely resistant to the drug? Explain your answer. Did you notice any colonies (isolated mounds of cells) growing within any of the zones of inhibition? If so, which plate(s) and which drug(s)? What would cause growth of colonies within a zone of inhibition?

Q: After completion of a Gram stain procedure, you notice the bacteria cells shown in the picture…

A: Gram stain results, cell arrangement, and cell shape:Gram stain results: The bacteria appear purple,…

Q: Give an explanation for these results based on what you know about the anatomical structure of E.…

A: Escherichia coli is a rod shaped, Gram-negative bacteria. They are non-spore forming bacteria which…

Q: Based on the following image, which concentration of antibiotic would be considered the minimum…

A: Minimum bactericidal concentration (MBC) is defined as the lowest concentration in which an…

Q: You have a mixed culture of 2 different bacterial species. One of the species is Gram negative…

A: Answer: Gram negative bacilli are those rod shaped bacteria which have thin peptidoglycan layer…

Q: you grew streak plates of Clostridium sporogenes under both aerobic and anaerobic conditions. Which…

A: The experiment involves growing streak plates of Clostridium sporogenes under both aerobic and…

Q: You found a bright blue growth on a tomato you had left on your kitchen counter. You’ve never seen a…

A: Introduction  A hypothesis is a proposed explanation for a phenomenon or observation that can be…

Q: You perform a Gram staining technique on two bacterial species and observe that one is stained…

A: Gram staining is a technique used to differentiate between two groups of bacteria namely…

Q: Both ethanol and trimethyldodecylammonium chloride are active ingredients in cleaning products used…

A: Ethanol and trimethyldodecylammonium chloride are chemicals that are used in laborotories for many…

Q: In light of the COVID-19 pandemic many people are more conscious about cleaning their household…

A: During this amid Covid-19 pandemic, it has become very important to keep ourselves and environment…

Q: You then take a cotton swab and subculture a sample from this zone of inhibition (where no growth…

A: The Kirby-Bauer test, known as the disk-diffusion method, is the most widely used antibiotic…

Q: The volume of E. coli added to each warm agar pour/virus mixture was originally100µL.  After…

A: E.coli when added to the agar pour containing virus was originally 100 ul and later changed to 300…

Q: A microbiology student was given a mixed culture of two different gram positive bacteria species to…

A: In Microbiology, we grow bacteria on culture medium. Culture media contains specific mixture of…

Q: biofilm-producing bacteria

A: Disclaimer: Kindly repost for other questions. As per the guidelines we are supposed to answer only…

Q: Choose the false statement: O Penicillin is a ß lactam which inhibits bacterial growth by inhibiting…

A: An antimicrobial is an agent that kills microorganisms or stops their growth. In this questions, we…

Q: 1) both streak plating and pour plating produce isoluated colonies. What is the underlying…

A: Hello there! Since you have posted multiple questions and not mentioned which one of them to be…

Q: Imagine you made a single kirby bauer plate to determine if a given antibiotic were effective for…

A: Introduction Antibiotics, also called antibacterials, are drugs that kill or slow the growth of…

Q: Which antibiotic would cure a yeast infection?

A: NOTE:- "As you haven't provided the data chart, so we will answer your question in general".…

Q: Citing data from the results table, tell which antibiotic is most effective against this type of…

A: Antibiotic zone of inhibition Antibiotics are a class of compounds or chemical that inhibits the…

Q: When a test tube of bacteria is treated with penicillin and left for two days, the bacteria were…

A: Penicillin belongs to the class of antibiotics known as beta-lactams, which inhibit the synthesis of…

Q: Use the photo below to measure the diameter of each antibiotic (all 3) and record the name and…

A: The microorganisms or bacteria are grown in the culture plate in the microbiology laboratory for…

Q: You are testing a potential new antibiotic for its effectiveness at killing Streptococcus…

A: Drugs are medications that are taken in the prescribed amounts under the supervision of doctors to…

Q: A relatively large zone of inhibition surrounding an antimicrobial disk on a Kirby-Bauer test plate…

A: The Kirby-Bauer test was developed by William Kirby, A. W. Bauer and their colleagues. It is also…

Q: A pathogenic bacteria ferments for survival in your patient producing a swollen, dark discolored leg…

A: Clostridium perfringens is a gram positive, anaerobic, spore forming bacteria which cause gas…

Q: since gram-negative bacteria are generally more resistant to antibiotics such as penicillin, Gram…

A: The major benefit of the Gram staining technique is the identification of the type of bacteria,…

Q: If coliform bacteria are native to human colons, why the big concern over coliform contamination?

A: According to the question, we have to mention the solution of the question asked above i.e. If…