 nutrient agar plates - Study guides, Class notes & Summaries

What are some things to remember for lab safety? - correct answer--Wash hands and clean bench with Lysol before and after lab -No eating or drinking -Close toed shoes and pants, tie hair back, wear gloves -Never take cultures out of lab -Store bookbag at front of classroom -Don't put things down sink or in trash can, go in biohazard container -Don't open plates with fungal growth -Handle microscopes gently and clean before putting back Aseptic technique - correct answer-a set of proc...

What is another name for a liquid growth media, and what are the basic components? - correct answer Growth media in a liquid form is often referred to as nutrient broth. As the name implies its composition consists primarily of essential 'ingredients' such as a rich source of sugars, amino acids, and vitamins. Together, a nutrient broth provides the microbe with a source of carbon/energy, which, in turn, encourages its expansion. What is select...

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 s torage 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 True or False: Archaea is noted for its ability to survive under harsh conditions. True. Archaea can often be...

Aseptic (contamination free) technique CORRECT ANSWER Technique used in the lab to avoid contaminating your culture media with other microbes - also reduces the risk of spreading microbes to yourself and others propper attire for lab CORRECT ANSWER closed toed shoes, long pants, tie back long hair PPE in lab CORRECT ANSWER Lab coat (buttoned up), safety glasses, nitrile gloves What personal belongings are allowed at the lab bench? CORRECT ANSWER lab manual ane a writing utensil aut...

Why is differential media typically inoculated with isolated colonies that have been previously cultured on general growth media? The general growth media used for the isolation of microorganisms from unknown clinical or non-clinical samples is referred to as differential media because the presence of indicators within the culture media allows for the growth of bacteria with distinct characteristics. 3. Use a textbook or a reputable internet source (such as ) to research and describe a sce...

Microbiology Lab Review Questions with Certified Answers Explain why the body tube of the microscope should not be lowered while you are looking through the ocular lens. to ensure that the slide or lens is not broken For what purpose would you adjust the Iris diaphragm? adjust the amount of light coming through the specimen For what purpose would you adjust the course-adjustment knob? to bring the specimen into view For what purpose would you adjust the fine adjustment knob? to bring the spe...

What is a parfocal? correct answer: ~Ability of a microscope to switch powers with minor adjustments in focus ~Ability to switch from one objective to another without altering the focus What is the definition of resolving power? correct answer: The ability of an optical instrument to separate or distinguish small or closely adjacent images. What is the total magnification through a 10x ocular & 100x objective? correct answer: 1,000x How do you calculate the scale of a drawing? corre...

The number of infectious viral particles can be calculated by Select one: a. counting the number of colonies that form on an agar plate. b. counting the number of plaques that form on an agar plate. c. counting the number of viral particles using a microscope. d. taking a turbidity measurement of a dilution of the viral solution. The correct answer is: counting the number of plaques that form on an agar plate. Which quantitation method is capable of providing the quickest measurement of...

70% alcohol then 2% iodine (or an iodiphor) - Answer the aseptic collection of blood cultures requires that the skin be cleansed with: 60 sec - Answer when cleaning the skin with alcohol then iodine for a blood culture collection, the iodine should remain intact on the skin for at least: inhibits phagocytosis and complement - Answer What is the purpose of adding 0.025%-.050% sodium polyanetholsulfonate (SPS) to nutrient broth media for the collection of blood cultures? ...

Which bacterial sample(s) contain(s) Staphylococcus aureus? Select one: a. None of the above b. Unable to determine from this set of results c. C d. A, B, and D Feedback The correct answer is: None of the above Question 4 Which of the following lists of disease-causing agents is arranged from smallest to largest? Select one: a. virus, bacterium, protozoan, helminth b. virus, bacterium, helminth, protozoan c. bacterium, virus, helminth, protozoan d. helminth, protozan, bacterium, vi...