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A: We make subculture from a plate where many different colonies of bacteria are growing.
Q: Peptidoglycan on bacterial cell walls is stained by crystal violet dye and for this reason those…
A: True
Q: layer
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Q: Experiment :method of sterilization on glassware and media
A: Sterilization is a process by which all forms of life are killed, deactivated or removed from a…
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A: Microbes are small living organisms which can not be seen through naked eyes. The study of these…
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A: A pure culture of bacteria is a population of bacterial cells growing in the absence of other…
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A: In the question, we are given: Generation time of bacteria: 2 hours and 30 min. Initial number of…
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A: A typical growth curve of a bacterial cell under ideal condition in culture generally has four…
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Q: shape
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A: Answer is a.) Acid -fast stain.
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A: Option b
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A: Gram's staining is a technique used to distinguish between Gram negative and Gram positive bacteria.…
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A: A disinfectant is a chemical substance or compound that is used to inactivate or destroy the…
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A: Biohazard is defined as any biological substance that can pose or cause a threat and harm to biotic…
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A: The acid-fast stain is used to stain the acid-fast organisms. Acid-fast microorganisms have a thick…
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A: Microbial culture refers to the method of letting the micro-organisms multiplying in the culture…
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A: The wet mount is the most basic method of preparation, in which the specimen is placed on the slide…
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Q: All microorganisms have a similar range of living conditions. true / false
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A: Dilution Factor is the factor by which the original solution is diluted. It may be expressed as the…
Q: chemically defined media b. complex culture media
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Q: typical labeled sketch of a bacterial growth curve in batch culture
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A: In high magnification (1000X) the oil emulsion is used. It is used when we use 100X objective lens…
Q: differential plate enrichment plate selective plate streak plate pour plate
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A: The correct option is shown below.
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A: Prokaryotes are characterised by the absence of nucleus and membrane bound organelles.
Q: move the images of bacterial cells into the chart to illustrate the color of gram-positive and gram…
A: answer given below
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A: A culture is a method by which microbes are allowed to reproduce and multiply in predetermined…
Q: You partner stained bacterial cells and saw only the background and not the actual cell was stained.…
A: Staining technique is a method in which recognition and visualisation of structure , arrangement of…
Q: After performing a Gram stain on a Gram negative bacteria, the specimen does not show pink or purple…
A: steps that are included in the Gram staining are- applying a primary stain (crystal violet) to a…
Q: Colony formation can be observed in liquid media. a) Trueb) False
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A:
Q: The raw product of an electron microscope is a color image of the object. True False
A: Introduction An electron microscope is a types of microscope where a beam of electron is used as…
Q: True or False: if an organism is multicellular, you can be certain that it is not a bacterium.
A: Multicellular: These are the organisms which consists of more than one cell Examples include human…
Q: __________ indicates ________________ in the cell culture.
A: Cell culture is a primarily techniques in life sciences. This is a common term that is used for…
Q: s shown in this diagram, you perform a ten-fold serial dilution of a culture to determine the number…
A: CFU count is the technique of enumeration of microbial cells in a sample and it is one of the most…
Q: It is called a "Negative Stain" because the stain has a negative charge, and is therefore: repelled…
A: An acid dye has negative charge hence are able to bind to the cell structures that are positively…
Q: Describe the difference between batch and continuous culture techniques
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Q: Which of the following reports bacteria counts as colony-forming units? Turbidity Most probable…
A: Bacteria are microscopic unicellular organisms that can be grown in culture for the benefit of the…
Q: Define the meaning of Suspension cell culture
A: Cell culture is a media which is used for growth of the cells.
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A: The culture plates for growing microbes hold importance in understanding and examining the…
Q: Endospores are very resistant to heat, drying, radiation and chemicals. True False
A: Introduction An endospore is a non-productive structure which is dormant and tough and is produced…
Q: Below is a diagram of the serial dilution of a culture with 1 x 10° cells. Fill out the missing…
A: Colony-forming unit / mL= Number of colonies * Dilution factor * 1/volume plated in mL CFU/mL = 1 *…
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- True or False: An isolated bacterial colony supplies cells to grow a "pure culture" of the bacteria. True FalseWhich of the following reports bacteria counts as colony-forming units? Turbidity Most probable number Standard plate count Microscopic countsTrue or False: Confirmatory identification is the final identification of a bacterium.
- It is called a "Negative Stain" because the stain has a negative charge, and is therefore: repelled by the bacterial surface attracted by the bacterial surface able to penetrate the bacterial surfaceA microbiologist is working with a pure strain of bacteria isolated from a mixed sample. Which of the following would indicate that the bacterium is NOT Helicobacter pylori? Cells have flagella when viewed by flagellar staining. Secretes acids produced from metabolism of sucrose. Cells are curved rods. Produces and secretes urease enzyme. Cells stain Gram negative.MALDI-TOF, is a method for identifying bacteria quickly. Look at this graphic then put the steps in order. Please follow a pathway of steps involving the Bacterial Culture: Get a readout of species identification and (sometimes) whether it is resistant or susceptible to antibiotics. Use colony from a nutrient agar plate. Prepare the sample, run it through MALDI-TOF machine. Grow a clinical sample on nutrient agar.
- a typical labeled sketch of a bacterial growth curve in batch cultureThe inhibition of bacterial growth and reproduction without necessarily destroying the organisms is the result of a disinfectant a sterilant a bactericide an antisepticDescribe how to make bacterial culture in different media. Explain different cultural techniques with an example. LONG DETAILED ANSWER NEEDED. I WILL RATE.
- Bacterial cells can form colonies on the following media EXCEPT: Select one: Nutrient broth Agar slant Agar plates Agar deepA microbiologist is working with a pure strain of bacteria isolated from a mixed sample. Which of the following would indicate that the bacterium is NOT Streptococcus mutans? Cells are arranged in chains. Secretes acids produced from metabolism of sucrose. Cells are cocci. Can grow in biofilms. Cells stain Gram negative.Bacterial capsule helps in adherence of bacteria to surface in its environment. It also protects the bacteria from cell death * BOTH statements are TRUE BOTH statements are FALSE FIRST statement is TRUE ; SECOND statement is FALSE FIRST statement is FALSE; SECOND statement is TRUE