12. A student makes a smear by applying a bacteria onto the slide. A simple stain is performed, but when the student looks under the microscope, no organisms are seen. What did the student do wrong when making the smear?
Q: 7. Use the image to answer the following questions A student collects some of this bacteria to…
A: Answer 1:- Based on the microbiological examination of the slide shown in the question, the petri…
Q: In the light microscope, which part holds the specimen 16 15 14 13 12 11 10 Select one: a. 13 O b.…
A: It is an instrument for visualizing fine detail of an object. It does this by creating a magnified…
Q: 6. The use of the compound microscope has some limitations. Identify some of them by accomplishing…
A: Light microscopy is a method that is used to visualize objects that are not visible to the naked…
Q: 13. A student makes a smear by applying a LARGE amount of bacteria onto the slide. A simple stain is…
A: INTRODUCTION You should be very careful while making the smears. It should be very thin, so that you…
Q: 2. Below are images showing the cell envelopes of Gram-positive and Gram-negative bacteria. Indicate…
A: Introduction - Microbiologist Christian Gram created a test in 1884 to determine whether a bacterium…
Q: Can someone help with microbiology? I believe the top indicates a gram negative bacteria but the hue…
A: Gram-negative bacteria have a thin layer of peptidoglycan on their cell walls, but they also have an…
Q: Someone comes in to the hospital with an infection. The infection does not respond to antibiotics,…
A: In this question asked about the cause of infection. Patient does not respond to antibiotic…
Q: Using a light microscope, samples can be viewed by which method (choose all that apply) O dissecting…
A: An optical microscope is another name for a light microscope.
Q: 1)What is the natural color of cytoplasm? How is it related to our need to stain bacterial cells? 2)…
A: The staining techniques are used to identify the morphological characteristics along with the size…
Q: 3) The use of the Gram stain in microbiology is important because it differentiates A) Bacteria from…
A: Microbiology is the study involved in the microscopic organisms like bacteria,viruses,archaea ,fungi…
Q: The picture shows bacteria (Escherichia coli) under a microscope Do you bacterial growth or no (…
A: Escherichia is a gram-negative bacterium, which under the microscope is shaped like a rod with a…
Q: 14. A student makes a smear by applying a bacteria onto the slide. A simple stain is performed, but…
A: Simple stains is to add one stain to a fixed smear slide, let it sit, rinse it off, let it dry, and…
Q: A differential stain can: separate bacteria into groups by cytoplasm composition OA. separate…
A: The small parts of the microorganisms are hard to differentiate as the colors under the microscope…
Q: What does a mordant do in the Gram stain procedure? Which reagent in the Gram stain is the mordant?
A: Gram staining is a procedure which is used to classify the bacterial cells on the basis of their…
Q: 1. What is the usual stain used for staining a sputum smear? 2. Give the principle of acid fast…
A: Microorganisms are microscopic organisms that are not visible to naked eyes. Several microorganisms…
Q: Motility is best observed with a a. hanging drop preparation c. streak plate b. negative stain d.…
A: Motility is the ability of bacterial cells to migrate from one location to another. The flagella…
Q: 1. Name the part of the microscope that you use to control the cone of light coming through the…
A: An instrument which functions by processing the light waves to enhance the image that is to be…
Q: What color would Staphylococcus aureus cells be with the endospore stain shown in the photo?
A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…
Q: A new lab recruit performs their first Gram stain on a slide containing both G(+) and G(-)…
A: Gram staining is a common technique used to differentiate between gram positive and gram negative…
Q: 1.)What is the purpose of a counterstain?
A: BASIC INFORMATION ENZYMES They are the catalyst. They help in accelerating the chemical reaction.…
Q: 1. Is a microscope an absolute necessity for studying microorganisms? Why or why not? 2. What do you…
A: 1:-Naked eyes have limitations to see object, they can't see the object having size less than…
Q: Bacterial smears are fixed before staining to make their walls permeable. accept stain, O affix the…
A: By staining microbial smears on a microscope slide, bacteria and bacterial components such as…
Q: Following a gram stain, you observe clear, glassy areas inside the bacterial cells. What would you…
A: Gram staining is a technique that is used to differentiate between bacterial cells on the basis of…
Q: 5. Why is it necessary for the specimen to be thin when observed under the microscope? A. so that…
A: Since there are multiple question in this particular question, I will answer the first one for you.…
Q: name 5 things about method staining
A: INTRODUCTION Staining Staining is a method that is used in medical field and histology to see things…
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: The use of the Gram stain in microbiology is important because it differentiates A) Bacteria from…
A: To find the best option among the four that related to use of gram stain in microbiology.
Q: 1. What magnification does the microscope need to be able to see cells? 2. What magnification does…
A: A microscope is an instrument that magnifies an object so that it may be seen by the observer.…
Q: Microbiology When using the Microscope in a lab, the use of oil prevents_____________ (use the…
A: Resolution refers to the ability to distinguish two adjacent objects with accuracy. If the…
Q: What are the ways in cleaning the objectives of the Microscope after use?
A: The objective is the optical element in optical engineering that collects light from the object…
Q: J Gram Stain 1 A capsule Stain
A: Specimen is withdrawing blood, collecting urine, or swabs from mucosal surfaces.
Q: 13. A staining that divides organisms into two groups depending on their staining is referred to as…
A: Staining is a technique used for enhancement of contrast in samples mostly at microscopic…
Q: 7. Draw what you would expect to see for acid fast stain and endospore stain procedure if you did…
A: Staining is a technique for adding color to cells, tissues, or microscopic components so that they…
Q: 13. Which object is used to focus light in a light microscope? adjustment knobs objective lens the…
A: -Light microscope is an instrument which is used to visualise the fine details of an object. -It is…
Q: Microbiology, are there technologies that can help make bacterial culture and sensitivity done…
A: The typical bacterial culture and sensitivity test takes around 7 days to give result, which can…
Q: A microscope is turned on, under low power, with a slide positioned on the stage ready to focus.…
A: A microscope is an important tool that is used to view microscopic specimens. There are many types…
Q: 5) Label the parts of the microscope. 1 2 7 8 Nikon 10 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
A: This is a light microscope that uses white light to illuminate the specimen.
Q: 4. Make drawings of your simple stain preparations. Bacillus sp. Staphylococcus sp. Shape Shape…
A: In microbiology the characteristics of the microorganisms is very important. For that purpose…
Q: 4. How does the light compound microscope magnify an object? Outline the process 5. Explain why an…
A: 4. How does the light compound microscope magnify an object? Outline the process It is an optical…
Q: 5. You receive a bacterial culture in the lab and your job is to figure out information which will…
A: Answer One of the most important staining methods used to differentiate between Gram Positiva and…
Q: 2. Give the purpose of each of the following reagents in a differential staining procedure: (Primary…
A: Differential Staining uses multiple chemical stains to view the microscopic organisms. It is because…
Q: 3. What is the difference between the compound light microscope and the stereo microscope? (1 Point)…
A: Compound microscope A compound microscope is commonly used to view something in deta that we can't…
Q: OT Tearning how to use the microscope is learning how to troubleshoot. When you have difficulty,…
A: A microscope is a laboratory instrument used to examine objects that are too small to be seen by the…
Q: 2. Draw an already streaked agar plate on the circle provided below with bacterial growth. If your…
A: The angular streaking or quadrant streaking method is the most commonly used method of isolating…
Q: Which stain is used to distinguish differences between the cell walls of medically important…
A: Introduction Bacteria are unicellular, prokaryotic organisms. They have distinct shape such as…
Q: 4. Identify the particular parts on the microscope and indicate what it would be used for. A C А B В…
A: Answer : the parts of microscope are : A) objectives : the objectives are the lens that are there…
Q: Discuss the freeze-drying process in details.
A: The process that helps remove the amount of moisture, provide flexibility, and preserve any fruit or…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 3. Draw the specimen observed under endospore staining 4. Draw the specimen observed under positive simple staining13. A student makes a smear by applying a LARGE amount of bacteria onto the slide. A simple stain is performed, but when the student looks under the microscope, individual organisms can’t be distinguished. What did the student do wrong when making the smear?4. You partner stained bacterial cells and saw only the background and not the actual cell was stained. Your partner thought this was a mistake. Please explain what type of staining method this is, how it works and why the background and cell is not stained.
- observe the transparent bacteria under bright field microscope, we use a. Simple staining b. Gram staining c. Negative staining d Direct staining eAll the above1. When performing a bacterial lab, what could happen that could lead to incorrect results (potential pitfalls during the lab?)Why are staining methods used in microbiology? Choose all that apply A. Staining results can have medical implications for an infected B. To clearly see the internal structures of the bacteria C. The stains can be used to dinginuish between bacteria type D. It is easier to very small microscope.
- Which stain is most frequently used to distinguish differences between thecell walls of medically important bacteria?a. simple stain. c. Gram stainb. acridine orange stain d. negativestain13. A staining that divides organisms into two groups depending on their staining is referred to as __________. a) simple staining b) differential stain c) structural staining d) morphological stainingExplain how bacterial cells would look in the gram staining procedure if the following mistakes were made: a. Decolorizer left on too long b. Decolorizer not left on long enough c. Slide not heat-fixed before staining
- You are hired in one of the microbiology labs in Memphis and your first assignment to identify microbial samples from a local restaurant. You are given a set of slides and asked to classify the specimens as Gram positive or Gram negative. 9) What makes the bacteria Gram negative?10) Approximately how long would it take you to finish the entire procedure14. A student makes a smear by applying a bacteria onto the slide. A simple stain is performed, but when the student looks under the microscope, the organisms are misshapen and look weird. What did the student do wrong when making the smear?1. Is a microscope an absolute necessity for studying microorganisms? Why or why not? 2. What do you think are the limitations of a brightfield microscope? Why is a brightfield microscope the most common type of microscope in routine clinical laboratories? 3. A slide in which a stained specimen is placed on the microscope stage. After careful and correct manipulation of the adjustment knobs, the specimen is still not in focus. What do you think is the reason? What corrective actions can be done? (provide computation) 1. What is the formula to determine the actual size of an organism? 2. The actual size of an Escherichia coli is 1.5um. What would be its image size if the magnification used is 1000x? 3. What magnification is used if an Bacillus sp. have a microscopic size of 3.5um and an image size of 15mm? NOTE: please try to answer all of the question, i promised to give you a good ratingg