0
Immersion oil is used in Gram staining to enhance the resolution of the microscopic image. It helps to reduce the refraction of light, resulting in a clearer and sharper image of the bacterial cells. This is particularly useful when observing Gram-stained slides under oil immersion microscopy.
Add your answer:
Earn +20 pts
Why gram staining is classified as differential staining?
Gram staining is classified as differential staining because it differentiates bacteria into two major groups based on differences in cell wall composition. Bacteria that retain the violet dye are classified as Gram-positive, while those that do not and are counterstained with safranin are classified as Gram-negative. This differential staining allows for the distinction of bacterial species based on their cell wall characteristics.
What type of dye is used to stain the specimen when the acid-fast stain and the gram stain are used?
Both processes use 2 stains. The Gram staining process uses crystal violet as the primary stain and safranin as the secondary stain. Acid-fast staining uses carbol fuchsin as the primary and methylene blue as the secondary.
Why it is necessary to wipe off the immersion oil after using the oil immersion objective?
Leaving immersion oil on the objective can attract dust and debris, which can impact imaging quality and potentially damage the lens. In addition, it can cause the oil to harden and become difficult to remove, leading to maintenance issues. Cleaning the oil off after use ensures optimal performance and prolongs the lifespan of the objective.
What microscope objective is best to study bacteria?
A 100x oil immersion objective is best for studying bacteria under a microscope as it provides the highest magnification and resolution needed to observe bacterial morphology and structure in detail. Additionally, the use of oil immersion helps to reduce the refraction of light and improve image clarity.
Should you store the microscope with the oil immersion lens in position?
No, it is not recommended to store the microscope with the oil immersion lens in position. It can lead to the oil drying out and potentially damaging the lens or affecting the quality of future observations. It is best to clean the lens and remove excess oil after use before storing the microscope.
Why gram staining classified as differential staining?
Differential staining is the procedure that are used to distinguish organism based on their staining properties. Use of gram stain divide bacteria into two classes - gram positive which retain crystal violet stain purple colour, gram negative which lose their crystal violet and give pink colour. By this method we can differentiate two different types of bacteria having different cell wall composition that is the reason gram staining used widely as differential staining
Why is Gram staining classified as differential staining?
Differential staining is the procedure that are used to distinguish organism based on their staining properties. Use of gram stain divide bacteria into two classes - gram positive which retain crystal violet stain purple colour, gram negative which lose their crystal violet and give pink colour. By this method we can differentiate two different types of bacteria having different cell wall composition that is the reason gram staining used widely as differential staining
Why is gram staining important?
It tells the microbiologist/clinician facts about the cell wall construction of the bacterium. This then indicates which antibiotics to prescribe if you are trying to get rid of a bacterial infection.
Why do you use on or slide to be examined with the oil immersion objective?
If you are using the oil immersion objective on a microscope, you must use oil to increase the resolution of the lens. These lens are used at very high magnification.
Why gram staining is classified as differential staining?
Gram staining is classified as differential staining because it differentiates bacteria into two major groups based on differences in cell wall composition. Bacteria that retain the violet dye are classified as Gram-positive, while those that do not and are counterstained with safranin are classified as Gram-negative. This differential staining allows for the distinction of bacterial species based on their cell wall characteristics.
What is the advantage of the gram stain over simple stains such as methylene blue?
Gram staining highlights different bacteria types through the use of special dyes. It aids in the diagnosis of a specific organism and tells the difference between gram negative and gram positive bacteria. Simple staining is unable to highlight the exact organism.
What type of dye is used to stain the specimen when the acid-fast stain and the gram stain are used?
Both processes use 2 stains. The Gram staining process uses crystal violet as the primary stain and safranin as the secondary stain. Acid-fast staining uses carbol fuchsin as the primary and methylene blue as the secondary.
What advantage does low power objective have over oil immersion objective?
A low power objective has a wider field of view and is easier to use because it doesn't require immersion oil. This makes it convenient for quickly scanning samples or observing larger structures on a slide without the need for oil immersion.
Why it is necessary to wipe off the immersion oil after using the oil immersion objective?
Leaving immersion oil on the objective can attract dust and debris, which can impact imaging quality and potentially damage the lens. In addition, it can cause the oil to harden and become difficult to remove, leading to maintenance issues. Cleaning the oil off after use ensures optimal performance and prolongs the lifespan of the objective.
How do JCBs use hydraulics?
it runs with hydraulics .the hydraulics contains some oil immersion , fluids.
Why is it necessary to use a young culture 24-hr old culture in gram staining?
Using a 24-hour old culture in Gram staining allows for the bacteria to be in the exponential growth phase, which ensures a consistent and optimal staining reaction. This phase also provides a uniform cell size and morphology, making it easier to differentiate between Gram-positive and Gram-negative bacteria. Older cultures may lead to cell death or changes in cell wall structure, affecting the accuracy of the Gram staining results.
What is the magnification of objects observed through a 100X oil immersion objective with a 7.5X eyepiece?
The total magnification would be 750X (100X objective multiplied by 7.5X eyepiece). Oil immersion objectives are specifically designed for use with immersion oil to minimize light refraction and increase resolution when viewing specimens with high magnification.
