how are many cultures of microbes routinely preserved multiple choice question dessication solid

Name: how are many cultures of microbes routinely preserved multiple choice question dessication solid agar plates freezing liquid culture 76747
Uploaded: 2022-04-27T16:13:55-08:00
Duration: 3 min 29 s
Channel: Suman K
Description: how are many cultures of microbes routinely preserved multiple choice question dessication solid agar plates freezing liquid culture 76747

Step 1: Understand the context of microbial preservation. Microbes can be preserved for research

How are many cultures of microbes routinely preserved...

Suman K and 65 other subject Biology educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Key Concept

Premium Feature

Explore the core concept behind this problem.

Key Concept

Premium Feature

Explore the core concept behind this problem.

Recommended Videos

wnat-is-a-common-method-of-preserving-bacterial-cultures-for-very-long-periods-of-time-multlple-choice-desiccation-reirlgerallon-seponlilcellon-bephileaelen-58356

What is a common method of preserving bacterial cultures for very long periods of time? Multiple Choice desiccation refrigeration saponification lyophilization

Suman K.

please select two methods that can be used for long term preservation of microbial cultures

Madhur L.

1. Agar media can be enriched with blood for the identification of: - Viruses from other microorganisms - Bacteria which can grow in anaerobic conditions - Bacteria which can grow in higher hydrostatic pressure - Bacteria which can cause hemolysis 2. Isolation of pure culture refers to: - Growing microorganisms on a surface - Separation of a single colony - Introduction of inoculum - Purification of culture 3. A rapid qualitative isolation method involving spreading a loopful of inoculum over the surface of an agar plate is known as: - Stabbing - Identification - Streaking - Isolation 4. A subculture is a: - Culture made from a contaminant - Culture made in an embryo - Culture made from an isolated colony - Colony growing beneath the media surface 5. Which of the following methods can be used to determine the number of bacteria quantitatively? - Streak-plate - Pour plate - Pour-plate and spread plate - Spread-plate 6. Addition of blood to culture medium only allows the hemolytic bacteria that grow on a plate to be picked out. This is an example of: - Selective media - Differential media - Chemically defined media - Complex media 7. Elective media facilitate the growth of only one kind of organism. Sabouraud medium is used to selectively isolate: - Acid-fast organisms - Gram-positive bacteria - Coliform bacteria - Yeasts 8. In the pour-plate method, the medium should be maintained at what temperature? - 45 degrees C - 0 degrees C - 37 degrees C - 67 degrees C 9. The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium known as: - Contamination - Disinfection - Inoculation - Isolation 10. Which of the following refers to specific procedures used to prevent unwanted microorganisms from contaminating the clinical specimen? - Inoculation - Disinfection technique - Aseptic technique - Needle technique 11. Bacteria that require special growth factors and complex organic substances are called: - Pathogenic - Aerobic - Chemoheterotroph - Anaerobic - Fastidious 12. A microbiology student notices that a culture broth tube was very turbid at the bottom of the tube but clear at the top of the tube. It can be concluded that the: - Organism should be grown in an anaerobic chamber - Organisms are aerobes - Organism can tolerate oxygen - Broth is sterile - Organism cannot produce superoxide dismutase and/or catalase 13. A characteristic of agar is: - It solidifies at 42 degrees C - A common source of nitrogen in liquid media - A polymer extracted from algae that has no nutritional value - It is solid at room temperature 14. Advantage of an agar slant preparation is: - Microbes can slide on agar easily - Less agar powder is needed - More surface area for growth of microbes 15. Which of the following instruments or equipment is used for sterilizing the media after it has been prepared? - Laminar air flow chamber - Inoculating needle - Incubator - Autoclave 16. A culture medium consisting of agar, human/sheep blood, and beef heart is a: - Complex media - Selective media - Reducing media - Chemically defined media - Differential media 17. What is the application of selective medium? - It allows growth of all the microbes inoculated to it - It allows the growth of one species of microorganisms while suppressing the growth of others - It does not allow the growth of any kind of microbes

Alexander B.

Transcript

00:01 Hi, as for the question, from the given four options, we have to select that one, which is the common method for preserving bacterial culture for very long period of time.

00:11 Among the four given option, the best one which is used for preserving bacterial culture for longer time is liophilization.

00:33 The other name for lyophilization is freeze -drying bacteria...

Question

How are many cultures of microbes routinely preserved? Multiple choice question. Dessication Solid agar plates Freezing Liquid culture

Question

How are many cultures of microbes routinely preserved? Multiple choice question. Dessication Solid agar plates Freezing Liquid culture

Please give Ace some feedback