One of the following is INCORRECT about Spread plate a-Allow aerobic bacteria to grow b-The sample is spread on agar surface by a sterile glass spreader  c-Only Surface colonies emerge after incubation d-Exclude Heat-sensitive bacteria.

Q: You are working in the lab with Streptococcus pyogenes and two other bacteria. You streak all three…

A: The basal,  enriched, bacterial growth medium, named the blood agar medium encourages the growth of…

Q: How would you draw out a step in an experiment that included the following? Please help, I am so…

A: Horizontal gene transfer (HGT) is largely responsible worldwide for increasing the incidence of…

Q: Blood agar is a differential medium that will show us a clear zone around a colony of normal flora…

A: A differential medium is made up of chemicals or composition that would help us to determine…

Q: You use tubes to test aerotolerance of bacteria. From your samples you have 3 results: A. Bacteria…

A: The bacteria can grow only in the favourable conditions that is when there is optimum amount of pH,…

Q: A culture initially has P0 number of bacteria. At t = 1 hour the number of bacteria is measured to…

A: A first order initial value problem is a system of equations of the type  F(t,y,y’)=0 ,  y(t0)=y0 .…

Q: A microbiologist is working with a pure strain of bacteria isolated from a mixed sample. Which of…

A: Streptococcus mutans is a bacteria which is often found in the oral cavity of human. It is a…

Q: A bioreactor which is used for the production of growth factor A is operated as fed- batch culture.…

A: A Bioreactor is a device or a process system which supports and habitats the biologically active…

Q: Noah wanted to transfer Staphylococcus aureus from a broth to an agar plate. He picked up the broth…

A: The aseptic techniques are applied in the laboratory setup to reduce the risk of contamination. It…

Q: Erythromycin, an antibiotic discovered in 1952 from soil bacterium Saccharopolyspora erythraea, was…

A: Yes, Philippines scientist namely Abelardo Aguilar discovered erythromycin from soil bacteria -…

Q: The goal of Disc diffusion test is   Select one: to determine the suitable concentration of an…

A: Antibiotics, such as penicillins and cephalosporins, are a form of antimicrobial drugs that fight…

Q: The phase (s) in a growth curve where bacterial numbers do not increase considerably in a nutrient…

A: In microbiology, the bacterial growth curve is a very essential tool to determine the development of…

Q: How would a limited food supply affect the bacterial growth curve? The lag phase would be longer…

A: Bacterial growth curve is the number of living cells plotted against time. It has four phases, these…

Q: Erythromycin, an antibiotic discovered in 1952 from soil bacterium Saccharopolyspora erythraea, was…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: Crystal violet ( choose all that apply) A. Is not a good differential stain B. Will stain the…

A: Question - Crystal violet ( choose all that apply) A. Is not a good differential stain B. Will stain…

Q: One reason that a portion of the soil samples was sifted through an additional sieve was to: F…

A: Related to soil sample test to check for different purposes. like moisture content, air content, the…

Q: ure bacterial culture was diluted by adding a 0.2 mL aliquot to 0.9mL water. Then 0.1 mL of this…

A: In microbiology, pure culture, a laboratory culture which contains one organism species. A pure crop…

Q: Which one of the following statements about liquid media is false Select one: a-is prepared without…

A: Liquid media are growth medium used in the microbiological experiments. They can provide a medium on…

Q: MacConkey agar plates represent ________ medium.   a differential a minimal a selective both a…

A: Microorganisms are grown in culture media.  The media used for growth of microbes contain necessary…

Q: 1. While working with Mannitol Salt Agar you notice the growth of staphylococci however other…

A: Mannitol Salt Agar is a selective and differential media used in microbiology.

Q: How would you enrich for an organism that can use phenol as a carbon source?

A: Enrichment culture media is a type of growth media that is used to obtain the microorganisms of…

Q: Which of the following molecules have been used as a biomarker in studies in microbial ecology? a…

A: All these molecules have been used as biomarkers in microbial ecology. Sterols, d- alanine and…

Q: Based on these results, which of the following statements is true regarding the effectiveness of…

A: A disinfectant is a chemical substance or compound that is used to inactivate or destroy the…

Q: A loopful of bacteria containing 1000 bacterial cells is inoculated into a nutrient broth and…

A: It is a multiple choice question.

Q: Would you use an inoculating loop to transfer bacteria to an agar deep tube?

A: Agar deep tube is a glass tube which is filled with solid medium. The medium is solid due to…

Q: You plated 1.0 mL of a sample diluted by a factor of 10^-5 and you counted 50 comonies after…

A: The stock concentration of the bacteria can be determined by counting the colonies formed on the…

Q: A colony of bacteria or fungi A. are one single individual B. Cannot survive on agar C. Is formed…

A: Bacteria are microscopic prokaryotic organism. Fungi on the other hand is eukaryotic organism.…

Q: Which of the following media selects for gram negative bacteria by inhibiting the growth of gram…

A: Selective media:- it usually allow the growth of a particular microbe and inhibit the growth of…

Q: Mueller-Hinton agar needs to be made to specific standards in order to yield reliable, reproducible…

A:

Q: Which of the following is not true or related to bacterial capsule formation  A. Rigid and attached…

A: Bacteria are unicellular prokaryotic microorganisms (nucleus is not enclosed in a nuclear membrane)…

Q: You have a culture of bacteria with an unknown number of bacteria in it. You have at your disposal…

A: Dilutions of microbial cultures or clinical and environmental samples are regularly needed in the…

Q: You used 1mL of a river water sample at a 10-3 dilution and added this to an agar plate. After…

A: CFU /cfu (colony-forming unit)   It is a metric for the number of viable bacterial or fungal cells.…

Q: A trp+, arg+ E. coli cell can grow on? A:Minimal medium B:Minimal medium plus amino acids…

A: There are two different kind of bacteria. They are classified as prototroph and auxotroph based on…

Q: 29.  Identify a FALSE statement from the following,  Group of answer choices bacterial growth is…

A: The growth of most of the microbes on a culture media is dependent upon the nutrient composition of…

Q: Which of the following applies to the Zone of Inhibition? None of the answers apply Decreases in…

A: Introduction :-  Zone of inhibition is the zone or area created by any given antibiotics in the…

Q: You were asked to prepare a dilution series of a bacterial culture where only 3 tubes will be used…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: r analysis. After 24 hours, your pour-plate reveals the presence of Proteus-looking colonies. What…

A: Proteus is an anaerobic, gram-negative bacterium belonging to the Enterobacteriaceae family. It is…

Q: MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria. Peptone provides nutrients…

A: Introduction Alfred Theodore MacConkey invented MacConkey agar (MAC) in the twentieth century, which…

Q: How do you observe growth in liquid microbiological media? a) the medium is cloudy or turbid b)…

A: Nutrients are required to grow microorganisms invitro i.e outside the body is called culture medium…

Q: attached Microbiology question AND ANSWER THE QUESTION COMPLETELY. Thank you. *If you actually…

A: Answer

Q: a) What is morphology? b) Describe the common morphological characteristics of bacteria that are…

A: Bacteria are single-celled organisms. Because of their small size, these cannot be seen through…

Q: ou count 54 colonies of bacteria on an agarp late on which you spread 0.2ml of a 10^-4 (or 1/10,000)…

A: Given information No. of colonies= 54 Volume = 0.2 ml Dilution = 1/10000

Q: You are tasked with quantifying bacteria in your soil sample. You resuspend 1.0g of soil in 10 ml 1x…

A: Given data:Number of colonies  = 175Volume plated = 150 uLTube dilution = 10^-4 or Dilution factor =…

Q: The generation time of a bacterial culture that produces two generations per hour is: a. Equal to…

A: Growth curves are generally the description of the density of cell populations in liquid culture…

Q: Make a chart of all the organisms (Columns) with results    a. Blood Agar Plate b. PEA Agar Plate…

A: As another way of identifying the effects of temperature on the growth of different organisms,…

Q: Transfer of Culture from Agar Plate to Agar Slant

A: The bacterial colonies of interest, after they are isolated from a particular source, need to be…

Q: You place 1 ml of a bacterial broth culture into bottle A containing 99 ml of sterile water and mix.…

A: In serial dilutions, dilutions are multiplied at each step. We can calculate dilution by dividing…

Q: PLEASE answer the 2 with no much explanation Culture media is sterilized after the inoculation of…

A: This questions are related to sterilization in microbiology   Sterilization is a process in which…

Q: You are given a culture medium on which only Gram negative bacteria will grow. Organisms that are…

A: The medium in which only gram negative bacteria will grow prevents gram positive bacteria to grow in…

Q: Bacteria can increase in their number by binary fission into two daughter cells. The rate of…

A: The bacterial growth curve is divided into the four-phase the lag phase, the log phase or…

Q: Bacteria growth and multiplication play a role in infectious diseases : Bacteria can increase in…

A: According to the question given above, we have to find out the growth curve effect on the generation…

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."