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Chromatography

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Q1. What is the method of multiplying micro- organisms by letting them reproduce in predetermined media under controlled laboratory conditions called?
A. Culturing

Q2. a population of cells or multicellular organisms growing in the absence of other species or types.
A. pure (or axenic) culture

Q3. what is used For the purpose of gelling the microbial culture
A. Agar

Q4. A cheap substitute for agar used for the isolation and maintenance of thermophiles. A. guar gum,

Q5. bacterial culture ideal for preparation of an antimicrobial assay A. liquid culture

Q6. Common liquid culture nutrient medium used A. liquid broth

Q7. Another normal media used in bacteriology A. nutrient agar

Q8. A standard carbon source added to nutrient medium
A. glucose

Q9. nitrogen is often provided
A. peptones

Q 10. What technique must be used to reduce the likelihood of bacterial contamination?
A. Aseptic techniques

Q11.Procedure by which Bacteria may be introduced to the media
A.innoculation

Q12. Culture media is sterilised in
A. an autoclave

Q13. Solid culture media in a Petri dish is known as .
A. agar plate

Q14. What is added to culture medium to make nucleic acid and certain types of lipids
A.Phosphorus

Q15. inoculum is transferred using
A. loop

Q16. method for transferring micro-organisms onto an agar plate is
A. streak plate technique.
Q17. used in industrial fermentation where a commercial product is being made.
A. Pure cultures

Q18. Medium that contains one or more ingredients that prevent the growth of certain micro-organisms but not others.
A.Selective medium

Q19.example of a selective medium
A.mannitol salt agar

Q20. Name a selective medium that contains bile salts. A. MacConkey agar

Q. medium is designed to show visible differences between micro-organisms such as different...

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