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Question 2. List What Is Required for the Preparation of Fixed Smears from a Pure Culture of Bacteria?

Вопрос

Question 2. List what is required for the preparation of fixed smears from a pure culture of bacteria?

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Шамиль
Экспертная проверка
элита · Репетитор 8 лет

Ответ

To prepare fixed smears from a pure culture of bacteria, the following steps and materials are typically required:1. **Culture Plate**: Obtain a pure culture of bacteria from an agar plate or broth culture.2. **Slide Preparation**: - Clean a glass slide thoroughly with soap and water, then rinse with distilled water and allow it to air dry. - Sterilize the slide by passing it through the flame of a Bunsen burner or using a slide sterilizer.3. **Heat Fixation**: - Place a loopful of the bacterial culture on the center of the slide. - Allow the culture to air dry completely. - Pass the slide through the flame of a Bunsen burner several times, holding it by the frosted end to avoid burning your fingers. This process kills the bacteria and adheres them to the slide.4. **Staining**: - After heat fixation, the slide can be stained using various staining techniques such as Gram staining, methylene blue staining, or acid-fast staining, depending on the type of bacteria and the desired outcome.5. **Rinsing and Drying**: - Rinse the slide gently with distilled water to remove excess stain. - Blot the slide dry with bibulous paper or allow it to air dry.By following these steps, you can prepare fixed smears from a pure culture of bacteria for microscopic examination.