Primary stain - Study guides, Class notes & Summaries

BI 234 LAB FINAL PCC EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED What are the shapes of bacteria? circular, rhizoid, irregular, filamentous, spindle what are the basic stains (positive) Crystal violet, Safranin, methylene blue (stains organism) what are the Acidic stains (negative) Nigrosine, congo red (background is stained) what is the goal of a Streak plate goal is to generate isolated colonies from a mixed culture what is crystal violet used in primary stain in g...

MIP 302 Exam 1 Questions with Correct Answers Why do gram positive cells stain purple, and gram negative cells stain pink? - Answer-gram + cells stain purple because they have a thick peptidoglycan layer that is too thick for the decolorizer to remove the grams iodine, whereas gram - cells have a thin ppg that allow for the removal of the mordant and for them to stain pink What objective lens do you use to determine the gram stain reaction and the morphology of bacteria? - Answer-using the 1...

Uark microbiology lab practical 1 rated A Coccus A spherical bacterium. Bascillus Rod shaped bacteria Spirillum A spiral-shaped bacterium. Uses of good bacteria on our bodies, in yogurt, and can be used to clean up oil and radiation colony visible mass of cells Innoculation putting bacteria into a medium what is the purpose of aseptic technique -no contaminating organisms are introduced into culture materials during handling or inoculation -handler and other people are not contaminated by ...

UCLA Phlebotomy Exam 1 (2024/ 2025) Questions and Verified Answers| 100% Correct| Grade A Q: Hematology Department - study of blood and blood forming tissues - Blood typing, cross match testing - CBC test: platelet count, red blood cell, white blood cells, hemoglobin, the size and weight of cells Q: Coagulation Department Answer: would perform a PT test or aPTT test to access blood clotting in a patient Q: diplomacy Answer: use of talking and tact to solve prob...

MICROBIOLOGY EXAM 1 WITH COMPLETE SOLUTIONS 100% Bacterial Cell shape *(Start of PID 2-3: Bacterial Cytology)* - correct answer Bacterial Taxonomy - correct answer Enterobacteriaceae Family has Escherichia coli and Salmonella Typhimurium members Escherichia is the genus and Coli is the species Salmonella is the genus and Typhimurium is the species Bacterial Cell size - correct answer Gram Stain - correct answer Crystal violet (primary stain) Gram's iodine (mordant) ...

why is the spore stain used with bacteria such as Bacillus and Clostridium? - ️️they develop an endospore in response to certain environmental conditions such as depletion of nutrients procedure for making smears - ️️1. use a wax pencil to draw a circle on the slide 2. take a loop of distilled water and smear it on the slide 3. take a very small loop of culture 4. smear it onto distilled water 5. allow to dry then heat fix, smear side up 3x what is the purpose of aseptic techniqu...

Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins Tru...

Exam 4: NURS 620/ NURS620 (Latest 2024/ 2025 Update) Adult/Gerontology Health Care I Guide | Qs & As| 100% Correct| Grade A (Verified Answers)- Maryville Q: Vulvovagintiis Answer: •Inflammation of the vulva and vagina •Vaginal itching, burning, and vaginal discharge •Result of infection •Noninfectious causes include allergic reactions, foreign body, atrophic or traumatic vaginitis, or collagen vascular disease •Bacterial vaginosis •Vulvovaginal candidiasis •Tri...

DAC Final Exam Review The presence loss of attachment indicates __________ rather than gingivitis. - Periodontitis What is the periodontal classification for a patient who smokes 10 cigarettes a day and has lost 5 teeth to periodontitis? - Class 4, Grade C A probing depth of more than ___ mm is associated with gingival disease. - 4 What is the primary cause of periodontal disease? - Bacterial plaque Which type of radiograph is best for determining the extent of crestal bone loss ...

*Negative Staining* Procedure - 1. Add a droplet of water 2. Using an aseptic technique, place a loopful of the microorganism from the culture in the droplet and mix 3. Place another slide at a 45° angle in a drop of nigrosin at the edge of the slide with mix 4. Push or pull the slide over the the mix to form thin layer over. Leave to air dry Bacillus (Bacilli pl.) - *Rod* shaped bacteria Because of a snowstorm, your regular laboratory session was canceled and the Gram staining procedure...