what is the purpose of applying a stain to a bacterial smear course hero

by Junior Lubowitz 7 min read

The stain adheres the bacteria to the slide. The stain kills the bacteria. The stain provides necessary contrast between the cells and the background. The stain magnifies the bacteria. The stain provides necessary contrast between the cells and the background.

Full Answer

What is the purpose of preparing and staining bacterial smears?

-bacterial smears provide scientist with the means to look at microorganisms -preparing smears disperses bacterial cells on a slide so that individual cells can be visualized under the microscope -preparation of bacterial smears is required for bacterial staining procedures

What is the purpose of the stain in this experiment?

The stain provides necessary contrast between the cells and the background. The stain magnifies the bacteria. The stain provides necessary contrast between the cells and the background. Sets found in the same folder

Why is it necessary to stain microorganisms with biological stains?

The bacteria are likely to get washed away during the staining procedure Why is it necessary to stain microorganisms with biological stains in order to visualize them with a microscope? The stain adheres the bacteria to the slide. The stain kills the bacteria. The stain provides necessary contrast between the cells and the background.

How does staining allow for the visualization of bacterial cells?

staining allows for the visualization of bacterial cells because it increases contrast during microscopic imaging true staining techniques do NOT provide information on which of the following structures? ribosomes cell membrane

What is the purpose of applying a stain to a bacterial smear?

What is the purpose of applying a stain to a bacterial smear? To provide contrast between the organism and the background. Since bacterial cells are generally transparent, it is very helpful to stain bacteria to provide contrast.

What is the purpose of staining a smear quizlet?

What is the purpose of Staining? to make the bacteria, which are otherwise nearly transparent, visible.

What is the purpose of the staining solution?

Staining solution are used in a variety of applications to stain proteins, nucleic acids, starch, biological tissues etc. Ampliqon is capable of producing unique indicators and staining solutions matching our customer recipes, that you will not find to be commercially available elsewhere.

What is the purpose of a stain in science?

The usual purpose is to reveal cytological details that might otherwise not be apparent; however, staining can also reveal where certain chemicals or specific chemical reactions are taking place within cells or tissues.

What is the purpose of preparing a bacterial smear?

The preparation of a smear is required for many laboratory procedures, including the Gram-stain. The purpose of making a smear is to fix the bacteria onto the slide and to prevent the sample from being lost during a staining procedure. A smear can be prepared from a solid or broth medium.

What is the purpose of preparing a bacterial smear quizlet?

What is the purpose of a bacterial smear? Prepare a sample of bacteria that adheres to a slide. The sample can then be stained so as to better view the bacteria.

Why do we need to stain bacteria quizlet?

The Gram stain is a differential stain. It is used to distinguish between Gram-positive and Gram-negative cells, and allows determination of cell morphology, size, and arrangement. allows direct observation of flagella. Presence and arrangement of flagella may be useful in identifying bacterial species.

Why do we stain microorganisms?

Why Stain Cells? The most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also be stained to highlight metabolic processes or to differentiate between live and dead cells in a sample.

What is a bacterial smear?

A bacterial smear is simply that—a small amount of culture spread in a very thin film on the surface of the slide. To prevent the bacteria from washing away during the staining steps, the smear may be chemically or physically “fixed” to the surface of the slide.

What is the purpose of staining tissue samples?

Staining is used to highlight important features of the tissue as well as to enhance the tissue contrast.

Why are stains used in light microscopy?

Why are stains used in light microscopy? Stains increase contrast as different components take up stains to different degrees. This allows components to become visible so they can be identified. They can also be used for differential staining.

Whats the meaning of stain?

1 : to suffuse with color. 2 : discolor, soil. 3a : taint sense 3 a conscience stained with guilt. b : to bring discredit on the scandal stained his reputation. 4 : to color (something, such as wood, glass, or cloth) by processes affecting chemically or otherwise the material itself.