Classification of Culture Media in Microbiology

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Which type of media is useful for the observation of bacterial motility and preservation of bacteria?

Liquid or broth media

Semi-synthetic medium (correct)

Artificial or synthetic media

Solid media

What is the agar percentage range in solid media used for the isolation and identification of bacteria?

0.3-0.5%

2-4%

1.5-2.5% (correct)

0.1-0.3%

Which type of media supports most non-fastidious bacteria?

Artificial or synthetic media

Semi-solid media

Enriched media

General purpose media (correct)

What is the composition of natural medium based on?

Exact chemical compositions Signup and view all the answers

In which classification is Potato Dextrose Agar (PDA) categorized?

Semi-synthetic medium Signup and view all the answers

Which media are used to grow fastidious bacteria?

Enriched media Signup and view all the answers

What is the main purpose of selective media in microbiology?

Inhibit the growth of certain organisms while promoting the growth of others Signup and view all the answers

Which type of media would be most suitable for visually differentiating between E.coli and Salmonella based on lactose fermentation?

Differential media Signup and view all the answers

In which type of media would you typically find indicators like Thiosulphate Citrate Bile salt Sucrose for the isolation of Vibrio cholera?

Specialized media Signup and view all the answers

What is the purpose of assay media in microbiology?

Conduct sensitivity tests for substances like antibiotics Signup and view all the answers

Which type of media would be most effective in promoting the growth of a specific genus of bacteria with minimal interference from others?

Selective media Signup and view all the answers

What is the main purpose of using culture media in microbiology?

To provide nutrients to microorganisms Signup and view all the answers

What is the role of peptone in culture media?

Supplying carbon and nitrogen Signup and view all the answers

Why is agar used in microbiological media?

To solidify the media Signup and view all the answers

What are the mineral salts commonly found in culture media?

Phosphates, chlorides, sulfates Signup and view all the answers

What is the suitable pH range for growth in culture media?

7.2 - 7.4 Signup and view all the answers

What are growth factors in culture media used for?

Promoting microbial growth Signup and view all the answers

Classification of Culture Media in Microbiology

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