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Microscopes

Microscopes are used to look at things that are not visible to the naked eye. This category would demonstrate how microscopes work and information about different kinds of microscope.

4,322 Questions

What is the microscope called that starts with a s?

The microscope you are referring to is likely a stereomicroscope, which is also known as a dissecting microscope. It is commonly used for viewing larger specimens at low magnifications with depth perception.

Why is magnification and resolution are important when viewing a small object with a microscope?

Magnification is important because it enlarges the image of the small object, making details easier to see. Resolution is important because it determines the level of detail that can be observed, allowing for clearer and sharper images. Together, magnification and resolution help to reveal fine structures and features of the object being examined.

What reason best explains why dead specimens must be used with transmission electron microscopes?

Dead specimens must be used with transmission electron microscopes because living organisms would be damaged or destroyed by the high-energy electrons used to create images. The electrons can penetrate through living tissue, causing damage and altering the structures being observed. This means that only fixed and preserved specimens can be used safely for imaging with this technique.

What is the part of the microscope that is being viewed?

The part of the microscope that is being viewed is the specimen or sample that is placed on the slide. This is the object that is magnified and observed under the microscope.

What is the appearance of letter E under the compound microscope?

The letter E would appear as an upside-down and inverted image under a compound microscope due to the way the lenses magnify and flip the object. The actual appearance would depend on the magnification level and resolution of the microscope being used.

Why does the specimen on a microscope small?

Microscope specimens need to be small in order to allow light to pass through and be focused onto the eyepiece. Additionally, smaller specimens enable the microscope to magnify them effectively, making it easier to observe fine details. A smaller size also helps to ensure that the entire specimen remains in focus under the lens.

Can a Scanning Electron Microscope be used on living specimens?

No, a Scanning Electron Microscope (SEM) cannot be used on living specimens because the high vacuum and electron beam used in an SEM would quickly kill the specimen. For observing living specimens, a different type of microscope, such as an optical microscope or a specially designed environmental SEM, should be used.

What is the function of medium power objective in a microscope?

The medium power objective in a microscope is used for observing specimens at a higher magnification than the low power objective, but not as detailed as the high power objective. It is commonly used to examine finer details of a specimen while still maintaining a wider field of view than the high power objective.

Can you see protista without a microscope?

Most protists are microscopic and cannot be seen without a microscope due to their small size. However, some protists, such as giant kelp, are macroscopic and can be seen without the aid of a microscope.

What are SEMs and what do they do?

SEMs (search engine marketing) are advertising methods that involve promoting websites by increasing their visibility in search engine results pages through paid advertising. It allows businesses to target specific keywords and demographics to drive traffic to their websites. SEMs include practices such as pay-per-click (PPC) advertising and search engine optimization (SEO) techniques.

What do the objectives do in a microscope?

The objective lens in a microscope helps to magnify the object being viewed on the slide. The objective lens can be rotated to change the magnification of the lens and yield a different view.

What is nose-piece in microscope?

The nosepiece on a microscope is the rotating mechanism that holds multiple objective lenses. By rotating the nosepiece, different objective lenses can be selected and brought into position to change the magnification level of the microscope.

What is course adjusment knob in microscope?

The course adjustment knob on a microscope is used to roughly focus the specimen by moving the stage up and down. It moves the objective lenses relative to the stage to bring the specimen into view. It is typically larger and located on one side of the microscope.

What type of microscope is needed to view amoeba?

An optical microscope is sufficient to view amoeba. Amoebas are single-celled organisms that are visible under a regular light microscope.

What are the characteristic of bright field microscope?

A bright field microscope is a type of light microscope that uses light from below the specimen to illuminate and create contrast with the specimen. It produces a dark image of the specimen against a bright background. Bright field microscopes are commonly used in biology labs for observing stained or naturally pigmented specimens.

What 2 things does a microscope have?

A microscope has lenses and an adjustable stage. The lenses magnify the specimen being observed, while the adjustable stage allows for precise positioning of the specimen under the lenses.

What can be seen under a transmission electron microscope?

Under a transmission electron microscope, one can see the internal structure of cells, tissues, and individual molecules at a very high magnification. This type of microscope can reveal details such as the arrangement of atoms and the ultrastructure of organelles within cells.

Why do you use the microscopes slides?

Microscope slides are used to hold and protect specimens for viewing under a microscope. They provide a flat and stable surface for the specimen to be placed on and allow for easy handling and movement under the microscope. The clear glass also allows for light to pass through the specimen, making it easier to observe and analyze.

What is the width of a microscope slide?

The standard width of a microscope slide is approximately 25-26 millimeters.

How did microscopes make the discovery of cells possible?

Microscopes enabled scientists to magnify tiny structures, making it possible to see cells for the first time. By allowing researchers to observe cells in detail, microscopes played a crucial role in the development of cell theory and our understanding of living organisms.

What are some similarities between dissecting and compound light microscope?

Both dissecting and compound light microscopes are tools used in laboratory settings. They both allow for the examination of objects that are too small to be seen with the naked eye. Additionally, they both provide detailed and magnified views of specimens for observation and analysis.

Why might a person have trouble viewing their cells with the microscope?

There could be several reasons, such as improper focus adjustment, incorrect lighting settings, dirty lenses, or inadequate staining of the cells. Additionally, the microscope may not be properly calibrated or the magnification level might be too high or too low for the cells being observed.

Why are microscopes better than a magnifying glass?

Microscopes have higher magnification power and better resolution than magnifying glasses, allowing for detailed examination of tiny objects. Microscopes also have additional features such as adjustable lighting and the ability to view objects in 3D. They are designed specifically for scientific research and analysis.

How do you dispose microscope slide with bacteria?

To dispose of a microscope slide with bacteria, follow proper lab safety guidelines by autoclaving or chemically treating the slide to kill the bacteria before disposing of it as biohazard waste. Do not discard it in regular trash to prevent potential contamination. Contact your institution's biosafety officer for specific protocols.

What do you call thing you look at under a microscope?

The things you look at under a microscope are called specimens. These specimens can be a variety of materials, such as cells, tissues, or microorganisms.