2. Diagram (draw) the Gram negative cell wall. Be sure to label specific components of the structure. What is the medical significance of LPS? What is the medical significance of the O-linked side chain?
Q: 7- The material used in culture techniques is important because the surface of the vessel serves as…
A: Cell culture is the process by which cells are grown in an artificial environment, often outside of…
Q: 2. How would you expect the staining properties of 24-hour culture of Bacillus subtilis or the other…
A: Note: Ad per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction: The…
Q: 3.In an experiment, two culture plates of the same bacteria were exposed to UV light for the same…
A: * Given that two Bacterial cultures were exposed to the uv light for same amount of time *…
Q: How different types & structures of cells helped us understand the mechanisms on how they work in…
A: As per the honor code, we only answer one question at a time, therefore we are answering the first…
Q: Why do we usually dilute cells before counting them in a hemocytometer?
A: According to guidelines we have to answer the first question only. so please kindly post the…
Q: 1. Surgical instruments are sterilized by heating them, while alcohol is used as disinfectant in…
A: Sterilization is defined as the process by which all microorganisms including viruses, bacteria,…
Q: 1. identify the mycobacterium and staphylococcus, elaborate them and describe the shapes of it (you…
A: Bacteria are single-celled organisms.
Q: 1. Illustrate the cell envelope for gram-negative and gram-positive bacteria.
A: Bacteria is a prokaryotic organism. They are unicellular and devoid of a true nucleus. That is their…
Q: 1. Diagram (draw) the Gram positive cell wall. Be sure to label specific components of the…
A: The majority of the gram positive cell wall contain significant measure of teichoic acid and…
Q: 4. A chemical sterilization procedure is found to destroy the indicator organism B. şubtilus with…
A: Sterilization is the process which involves destruction of all microorganisms (bacteria, fungi,…
Q: Diagram (draw) the Gram positive cell wall. Be sure to label specific components of the structure.…
A: In bacteriology, microorganisms which show positive effects on gram stain test are gram positive.
Q: 1. What oxygen requirement, or aerotolerance, categories allow for an organism to survive in the…
A: To live, most living things require oxygen. Oxygen aids in the growth, reproduction, and conversion…
Q: 4. In standard plate counts, plates that are 'countable' contain between to colonies/plate. What…
A: 4 ) In standard plate counts , plates that are countable contain between 30 to 300 colonies/…
Q: 4. What is the theory about the mechanism of the Gram-stain reaction? 5. What part of the bacterial…
A: There are different staining techniques used in the study of bacteria. Eg: Simple staining…
Q: 9. A researcher measured the absorbance of a sample of C. vulgaris and found it to be 0.05. What is…
A: Ans 9.Beer lambert's law states that there is direct linear relationship between the absorbance and…
Q: 3. Construct a table to compare and contrast Gram positive, Gram negative, Acid fast, and Mycoplasma…
A: Characteristic Gram-positive Gram Negative Acid-fast Mycoplasma Cell wall structure A complex…
Q: 1. The physical factor influencing water entry into and exit from cell interior resulting in…
A: Introduction A pathogenic bacterium, or microbial cell, is a living entity that is too small to see…
Q: 1. What is the mechanism of action of penicillin? 2. Cells treated with penicillin do not die…
A: Penicillin inhibits the cell wall of bacteria by blocking transpeptidase after binding to…
Q: 4. When an organism is positive for the coagulase enzyme, which of the following would be present in…
A: Coagulase test is performed to detect whether the organism is able to produce the coagulase enzyme…
Q: 1. Diagram (draw) the Acid fast cell wall. Be sure to label specific components of the structure.…
A: Since there are multiple questions in this particular question, I will answer the first one for you.…
Q: 3. Explain about Peptidoglycan in Gram-negative cell wall
A: Bacterial cells are always bounded by a chemically complex cell wall .The cell wall protects…
Q: 5. Why is it important to use standardized antibiotic (ATB)-impregnated paper disks? What is the…
A: ATB (antibiotic) test is used to check the impact of a specific antibody on the selected bacterial.…
Q: 6)Which of the following statements is a reason why Acid-Fast Bacteria resist the Gram stain a)…
A: Answer. Staining is a biochemical technique of adding a class-specific dye to a substrate to…
Q: 1. why is it necessary to employ a spore stain rather than rely on diagnosis of sporing from…
A: Endospores are formed by certain gram positive bacteria such as species of Bacilli. These are highly…
Q: antibiotic or enzyme can be a control method that would work against the external structure found in…
A:
Q: 4. The Gram stain, if the decolorizing step is deleted, gram-negative cells will appear at the…
A: Decoloriser in gram staining method is to dehydrate the peptidoglycan layer of the cell wall causing…
Q: Below is an image of bacterial cells. 1. What shape of bacterial cells is portrayed? 2. Are there…
A: Microorganisms have different morphological features which include the size, shape, and…
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: 3. Figure 4 shows a section through a cell from a fungus magnified 48,000 times. The section has…
A: Fungi comes under the category of eukaryotes and therefore they contains a true nucleus.The fungal…
Q: Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive…
A: As per our company guideline we are supposed to answer only first question or first 3 subparts of…
Q: Please discuss how Gram-Positive and Gram-Negative Cell walls are different from each other. What…
A: There are two types of bacteria on the basis of their cell wall composition, Gram positive and Gram…
Q: which of the following best describes the gram positive (+) cell wall: O the peptidoglycan chain…
A: Bacteria are classified based on the Gram staining properties. Actually this staining property is…
Q: What is unique about the glycans found in biofilms?
A: ANSWER;- Glycans have been known to play an important role in metabolic, structural, and physical…
Q: 3. Describe the effects of the various antiseptics/disinfectants you used. Were they all equally…
A: # send questions one by one in the portal. Antiseptics : It is a chemical or a substance that stops…
Q: 1.Describe a microbial biofilm. Discuss why is it likely that a biofilm contains bacteria with…
A: Biofilms are the various communities of bacteria present on the living or on the inert surface in an…
Q: Describe the cross - section side view of a Gram - negative cell . Clearly state where the following…
A: The gram-positive bacteria retain the crystal violet color and stain purple whereas the…
Q: more
A: Since you have not asked a specific question to be answered, therefore we will be answering the…
Q: How do the differences between gram-positive and gram-negative cell walls influence the cell’s…
A: Bacteria are prokaryotic microorganisms and are a part of the kingdom Monera. They are classified…
Q: 2. Use the above photo to answer the following questions: a. What organism did you observe these…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Which of the following microorganisms contain large amounts of peptidoglycan? O a. Some viruses O b.…
A: Ans- b) Gram-Positive Bacteria Gram stains as one of the crucial stains experiment for bacteria to…
Q: Draw a typical bacterial growth curve. Label the stages of growth and the axis of the graph.
A: A typical bacterial growth curve contains 4 phases. 1.Lag phase 2.Log/Exponential phase…
Q: 5. What are the basic shapes of bacterial cells? What are the basic arrangements? Know the terms.…
A: bacteria are prokaryotic, unicellular microorganisms, which back chlorophyll pigments. the cell…
Q: 1. (A) imparts pathogenicity (B) no sterols (C) with permease (D) 75% proteinacious 2. (A) thick…
A: Organisms that are not visible by the naked eye and can only visualize using a microscope are called…
Q: 4. Describe the differences between the gram positive and the gram negative cell wall. Where is…
A: Answer: Gram Positive Bacteria Gram Negetive Bacteria Gram-positive bacteria have a single…
Q: The colonies on a negative MSA plate would appear _____________. 2. "E. Coli and S. epidermidis…
A: MSA stands for Mannitol Salt Agar. The MSA plate is often used for halophilic bacterias. Halophilic…
Q: 3A.) A throat and nasal sample are taken from a patient to determine the type of bacterial infection…
A: Gram staining is a technique utilised to differentiate two large groups of bacteria according to…
Q: Explain how air movement and relative humidity affect the growth of microorganisms.
A: Warm air can possess more water vapor than cold air, so with the same amount of humidity, air will…
Q: 2. Diagram (draw) the Gram negati wall. Be sure to label specific components of the structure. WE…
A: Gram-negative microorganisms are classified by the color they flip when an activity referred to as…
Answer all the question in complete sentences and paragraphs. Draw the diagram by hand:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Explain thoroughly the theory of gram differentiation that is based on cell wall structure and lipid component.Figure 9.18 What advantage might biofilm production confer on the S. aureus inside the6)Which of the following statements is a reason why Acid-Fast Bacteria resist the Gram stain a) Because their cell wall architecture varies from both gram-negative and gram-positive bacteria. b) Because they lack the peptidoglycan layer. c) Because they have a thick peptidoglycan layer. d) Because they have a thick layer of fatty acids.
- 1. What is the actual magnification of Cell X? Explain the solution .A. Microscopic Observation of Cells Wet Mounts, Gram stain and spore stain 1 Describe the microscopic morphology and behavior of each species observed with a wet mount (A. serpens and E. gracilis). 2 Describe the microscopic morphology of each sample observed with a Gram stain (S. aureus, P. aeruginosa, B. subtilis and dental plaque). Indicate the Gram reaction of each. 3Describe the microscopic morphology of each sample observed with the spore stain (P. aeruginosa and B. subtilis). In which of the sample can you see spores?Describe the cross - section side view of a Gram - negative cell . Clearly state where the following would be located or write the letters in order of appearance from the outside to the inside . If any of these structures are not present , make sure to leave them out . A ) peptidoglycan ; ( B ) periplasm ; ( C ) porin ; ( D ) LPS ; ( E ) teichoic acids ; ( F ) plasma membrane : ( G ) outer membrane : ( H ) nucleoid
- 1. Please discuss how Gram-Positive and Gram-Negative Cell walls are different from each other. What makes them distinct? How can they be tested and what observations will show from this? 2. You have two microorganism samples and trying to determine characteristics they contain. You determine sample M requires an environment found in a hot spring. While sample P requires rat liver cells to survive. Based upon this information please classify what type of sample M and P are. Provide the term to each and define in detail. (hint for sample P: Q Fever)4. What is the theory about the mechanism of the Gram-stain reaction? 5. What part of the bacterial cell is most involved with Gram staining, and why? Please provide a reference1. why is it necessary to employ a spore stain rather than rely on diagnosis of sporing from examination of gram stain 2.What is the purpose of the bacterial capsule?
- 1. How is UV radiation a good type of control mechanism against microbial growth? Please explain what happens to the microbe and effects this control causes. 2. Suppose you do the Kirby-Bauer test on a hypothetical Staphylococcus species with penicillin and tetracycline. You record diameters of 20mm for tetracycline and 24mm for penicillin. Which antibiotic is most effective against this bacterium and why? Please explain and interpret these results.1. How is UV radiation a good type of control mechanism against microbial growth? Please explain what happens to the microbe and effects this control causes. 2. Suppose you do the Kirby-Bauer test on a hypothetical Staphylococcus species with penicillin and tetracycline. You record diameters of 20mm for tetracycline and 24mm for penicillin. Which antibiotic is most effective against this bacterium and why? Please explain and interpret these results. 3. Please provide the scientific name of your microbe that was used in the UV experiment (i.e. S. aureus). Compare your plates and interpret/analyze your results. Please discuss your findings and any patterns you were able to gather. 4. After performing the “Effects of Antiseptics & Disinfectants” lab which agent(s) showed potential to control S. marcescens growth? P. aeruginosa? Please explain why you believe these agent(s) work. 5. What purpose does water serve in the “Effects of Antiseptics & Disinfectants” lab? What did you…1)What is the natural color of cytoplasm? How is it related to our need to stain bacterial cells? 2) Which of the following is the main goal when staining a culture? A) improve contrast B) identify bacteria C) Visualize bacterial structures
