DIFFERENTIAL STAINING 1. Primary Stain- what structure is stained? 2. Mordant- what is this?
DIFFERENTIAL STAINING
1. Primary Stain- what structure is stained?
2. Mordant- what is this?
Homework Answers
Answer:
1. Cell wall is stained by primary stain in gram staining technique.
2. Mordant is a chemical substance that used to stabilize the stain.
In gram staining technique, iodine is used as mordant.
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DIFFERENTIAL STAINING
1. Primary Stain- what structure is stained?
2. Mordant- what is this?
1. Describe several advantages of differential staining procedures compared with simple staining techniques. 2. Give the...
1. Describe several advantages of differential staining procedures compared with simple staining techniques. 2. Give the purpose of each of the following reagents in a differential staining procedure: a. Primary stain b. Counter stain c. Decolorizing agent d. Mordant 3. Why is it important for the counter stain to be a lighter color than the primary stain? 4. You have done gram staining for a gram positive bacteria, but at the end you observed pinkish-red bacteria under microscope, what was...
what dyes are use as the primary stain and the counterstain in Gram- staining?
what dyes are use as the primary stain and the counterstain in Gram- staining?
Exercise 8 - Gram Staining Procedure for gram staining. Know all chemicals/reagents used in correct order,...
Exercise 8 - Gram Staining Procedure for gram staining. Know all chemicals/reagents used in correct order, function of each chemical, the effect of cach chemical and how gram + and gram - bacteria would appear at each step Color reactions at each step of procedure. Know why, based on the differences in cell wall structure, that the gram + vs gram - bacteria stain either purple or pink. What washes off in the decolorizing step of a gram - bacteria?...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY You have stained a bacteria using the Gram staining technique...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY
You have stained a bacteria using the Gram staining technique what color would any endospores be if present? A. Colorless B. Green C. Pink D. Blue E. Purple 2. If you omitted the Safranin step in a gram staining procedure, what would be the color of a Gram-negative bacteria? A. Colorless B. Pink C. Green D. Purple E. Blue 3. Bacillus licheniformis would be what color and shape after a Gram staining? A. Purple...
Unit 2 Staining Microbes 5. The endospore stain is generally described as a structural stain." but...
Unit 2 Staining Microbes 5. The endospore stain is generally described as a structural stain." but in what sense could this stain also be considered a "differential stain"? 6. Fill in the table below: Disease Description or Symptoms Diseases Caused B. cereus anthracis C botulinum C tetani C. perfringens
1. There are other staining procedures beyond simple staining and differential staining. Examples include endospore, acid-fast,...
1. There are other staining procedures beyond simple staining and differential staining. Examples include endospore, acid-fast, capsule, and flagella stains. Please pick one staining technique to research and answer the following questions: • What is the theory behind the staining technique, what stains are used, how are they applied, what portion of the bacteria are they reacting with • How is this stain used to differentiate or identify bacterial cells or cell structures? • Describe the staining technique. List and...
all questions ASSESSMENT Critical Thinking and Learning Outcomes Review 1. What are the two purposes of...
all questions
ASSESSMENT Critical Thinking and Learning Outcomes Review 1. What are the two purposes of heat fixation? 2. What is the purpose of simple staining? 3. Why are basic dyes more successful in staining bacteria than acidic dyes? 4. Name three basic stains 5. Why is time an important factor in simple staining? 6. How would you define a properly prepared bacterial smear? 7. Why should you use an inoculating needle when making smears from solid media? An inoculating...
Can you please explain why SAFRANIN cannot be used a primary stain, when staining Bacillus Cereus...
Can you please explain why SAFRANIN cannot be used a primary stain, when staining Bacillus Cereus and Clostridium tetani?
The Schaeffer-Fulton stain allows a research to differentiate populations of bacteria based on what dormancy structure...
The Schaeffer-Fulton stain allows a research to differentiate populations of bacteria based on what dormancy structure that may be synthesized. For Microbiology lab class. The Schaeffer-Fulton stain is used for endospore staining. I do not understand the question and what it is asking for. I do know that the primary stain is what stains the endospore to malachite green.
MICROBIOLOGY: Exercise 3-7 Acid-Fast Stain (Kinyoun Method TRUE FALSE 1. The Acid-Fast stain is a differential...
MICROBIOLOGY:
Exercise 3-7 Acid-Fast Stain (Kinyoun Method TRUE FALSE 1. The Acid-Fast stain is a differential stain. 2. The counter stain for the Kinyoun Acid-Fast method is 3. The decolorizing agent for the Kinyoun Acid-Fast method is . The Kinyoun method requires heat for at least 5 minutes . An Acid-Fast microbe is 6. The Acid-Fast method is used primarily to identify microbes in the genus TRUE FALSE in color 7. What is the other type of acid-fast staining procedure?...
1. Describe several advantages of differential staining procedures compared with simple staining techniques. 2. Give the purpose of each of the following reagents in a differential staining procedure: a. Primary stain b. Counter stain c. Decolorizing agent d. Mordant 3. Why is it important for the counter stain to be a lighter color than the primary stain? 4. You have done gram staining for a gram positive bacteria, but at the end you observed pinkish-red bacteria under microscope, what was...
Exercise 8 - Gram Staining Procedure for gram staining. Know all chemicals/reagents used in correct order, function of each chemical, the effect of cach chemical and how gram + and gram - bacteria would appear at each step Color reactions at each step of procedure. Know why, based on the differences in cell wall structure, that the gram + vs gram - bacteria stain either purple or pink. What washes off in the decolorizing step of a gram - bacteria?...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY
You have stained a bacteria using the Gram staining technique what color would any endospores be if present? A. Colorless B. Green C. Pink D. Blue E. Purple 2. If you omitted the Safranin step in a gram staining procedure, what would be the color of a Gram-negative bacteria? A. Colorless B. Pink C. Green D. Purple E. Blue 3. Bacillus licheniformis would be what color and shape after a Gram staining? A. Purple...
Unit 2 Staining Microbes 5. The endospore stain is generally described as a structural stain." but in what sense could this stain also be considered a "differential stain"? 6. Fill in the table below: Disease Description or Symptoms Diseases Caused B. cereus anthracis C botulinum C tetani C. perfringens
all questions
ASSESSMENT Critical Thinking and Learning Outcomes Review 1. What are the two purposes of heat fixation? 2. What is the purpose of simple staining? 3. Why are basic dyes more successful in staining bacteria than acidic dyes? 4. Name three basic stains 5. Why is time an important factor in simple staining? 6. How would you define a properly prepared bacterial smear? 7. Why should you use an inoculating needle when making smears from solid media? An inoculating...
MICROBIOLOGY:
Exercise 3-7 Acid-Fast Stain (Kinyoun Method TRUE FALSE 1. The Acid-Fast stain is a differential stain. 2. The counter stain for the Kinyoun Acid-Fast method is 3. The decolorizing agent for the Kinyoun Acid-Fast method is . The Kinyoun method requires heat for at least 5 minutes . An Acid-Fast microbe is 6. The Acid-Fast method is used primarily to identify microbes in the genus TRUE FALSE in color 7. What is the other type of acid-fast staining procedure?...
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