Sabouraud Dextrose Agar Quiz
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Questions and Answers

What is the primary purpose of using Sabouraud Dextrose Agar (SDA)?

The primary purpose of using SDA is to cultivate dermatophytes and other types of fungi.

Which filamentous bacteria is mentioned as being capable of growing on Sabouraud Dextrose Agar?

The filamentous bacteria mentioned is Nocardia.

Name two control organisms that demonstrate growth on Sabouraud Dextrose Agar.

The control organisms that demonstrate growth are Aspergillus flavus and Candida albicans.

What type of growth result would you expect from Streptococcus pneumoniae when cultured on SDA?

<p>No growth is expected from Streptococcus pneumoniae on Sabouraud Dextrose Agar.</p> Signup and view all the answers

How should the procedure for using Sabouraud Dextrose Agar be followed?

<p>The procedure should be followed according to the directions mentioned on the bottles.</p> Signup and view all the answers

Sabouraud Dextrose Agar is used to cultivate ______ and other types of fungi.

<p>dermatophytes</p> Signup and view all the answers

Sabouraud Dextrose Agar can also grow filamentous bacteria such as ______.

<p>Nocardia</p> Signup and view all the answers

The control organism ______ demonstrates growth on Sabouraud Dextrose Agar.

<p>Candida albicans</p> Signup and view all the answers

For the cultivation of pathogenic and nonpathogenic fungi, especially ______, Sabouraud Dextrose Agar is used.

<p>dermatophytes</p> Signup and view all the answers

The expected growth result from ______ when cultured on Sabouraud Dextrose Agar is no growth.

<p>Streptococcus pneumoniae</p> Signup and view all the answers

Flashcards

SDA Usage

Cultivates fungi, dermatophytes, and some filamentous bacteria.

SDA Cultivation

Follows bottle instructions for proper procedure.

SDA Purpose

Grows pathogenic and non-pathogenic fungi.

Aspergillus flavus Growth

SDA allows Aspergillus flavus to grow on the media.

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Streptococcus pneumoniae Growth

Streptococcus pneumoniae does not grow on SDA.

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What is Sabouraud Dextrose Agar (SDA)?

A type of culture media specifically designed to grow fungi, including those that cause skin infections (dermatophytes). It can also support the growth of certain bacteria.

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What are dermatophytes?

Fungi that infect the skin, hair, and nails, causing infections like ringworm and athlete's foot.

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What kind of bacteria can grow on SDA?

Some filamentous bacteria, like Nocardia, can grow on SDA.

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What does SDA control organism mean?

Specific organisms used to test whether the media is working correctly. They should grow or not grow as expected.

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Why can't Streptococcus pneumoniae grow on SDA?

SDA is formulated to favor the growth of fungi, and this specific bacteria is inhibited by the media's composition.

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Study Notes

Sabouraud Dextrose Agar (SDA)

  • Used for cultivating dermatophytes and other fungi.
  • Can also grow filamentous bacteria like Nocardia.
  • Follow instructions on the product bottle for proper procedure.
  • Used for growing pathogenic and nonpathogenic fungi.
  • Especially useful for cultivating dermatophytes.

Control Organisms

  • Aspergillus flavus, Candida albicans: Show growth on SDA.
  • Streptococcus pneumoniae: No growth is observed on SDA.

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Description

Test your knowledge on Sabouraud Dextrose Agar (SDA) and its applications in cultivating fungi and dermatophytes. This quiz covers the key aspects of SDA, including its use for pathogenic organisms and control organism behavior on the medium. Perfect for students of microbiology and mycology!

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