Microscope And Cell Quiz

2.

How does a light microscope work?

Uses light to view a thin object or slice of object to see details
Uses light to view cork cells
Uses an electron beam to produce radiation which enlarges the cells to 5 million times the original size
Uses Ultraviolet waves to produce a visual image of a living thing

Correct Answer

A. Uses light to view a thin object or slice of object to see details

Explanation

A light microscope works by using light to view a thin object or slice of an object in order to see details. Light passes through the object, is refracted by the lenses in the microscope, and then forms an image that can be viewed through the eyepiece or captured by a camera. This allows scientists to observe and study the structure and characteristics of the object at a microscopic level.

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3.

As magnification increases, more details can be seen.

True
False

Correct Answer

A. True

Explanation

As the magnification increases, more details can be seen because the object being observed appears larger and closer. This allows for a better view of smaller and finer details that may not be visible at lower magnifications.

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4.

Limits of the resolution of magnification are

Fuzzy viewing
The microscope ceases to function
The coarse lense becomes stuck.
Both A and C

Correct Answer

A. Fuzzy viewing

Explanation

The limits of the resolution of magnification are fuzzy viewing. This means that when the magnification is increased beyond a certain point, the image viewed through the microscope becomes blurred and unclear. This is because the microscope is unable to distinguish fine details and resolve them properly. The resolution of a microscope is determined by its ability to distinguish two closely spaced objects as separate entities, and when the magnification exceeds the limits of resolution, the image quality deteriorates and becomes fuzzy.

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5.

Resolution is the capacity to distinguish the individual parts of an object

True
False

Correct Answer

A. True

Explanation

Resolution refers to the ability to distinguish or resolve individual parts or details of an object. It is a measure of the level of detail that can be captured or perceived in an image or display. A higher resolution means that more individual parts or details can be distinguished, while a lower resolution means that fewer details can be resolved. Therefore, the statement that resolution is the capacity to distinguish the individual parts of an object is true.

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6.

Resolution is the viewing ability of a microscope.

True
False

Correct Answer

A. False

Explanation

The statement is false because resolution is not the viewing ability of a microscope. Resolution refers to the ability of a microscope to distinguish between two closely spaced objects as separate entities. It is a measure of the clarity and sharpness of the image produced by the microscope. The viewing ability of a microscope is determined by factors such as magnification, lighting, and the quality of the lenses used.

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7.

The ______ is a rotating turret that holds multiple objective lenses of different magnifications.

Correct Answer
nosepiece, Nosepiece

Explanation
The nosepiece is a revolving part of the microscope that allows the user to switch between different objective lenses, each providing a different level of magnification. This enables the observation of specimens at various levels of detail, from low-power overviews to high-power close-ups.

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8.

Ways to enhance the viewing of an object through a light micrsope are...

Adding dyes or stains
Adjust the retina of the eye
Both A and B

Correct Answer

A. Adding dyes or stains

Explanation

Adding dyes or stains can enhance the viewing of an object through a light microscope because they increase the contrast between different structures or components of the object. This allows for better visualization and identification of specific features or details that may be difficult to see with the naked eye. Adjusting the retina of the eye, on the other hand, does not directly enhance the viewing of an object through a light microscope. Therefore, the correct answer is adding dyes or stains.

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9.

Describe the advantage of using a light microscope

10.

When was the electron microscope invented and perfected?

1885
Early 1900s
1964
2003

Correct Answer

A. Early 1900s

Explanation

The electron microscope was invented and perfected in the early 1900s. This breakthrough in microscopy occurred during this time period, allowing scientists to observe objects at a much higher resolution than was possible with traditional light microscopes. The development of the electron microscope revolutionized scientific research and greatly expanded our understanding of the microscopic world.

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11.

Electron microscopes are used to study great details of surfaces and interior structures of cells

True
False

Correct Answer

A. True

Explanation

Electron microscopes are powerful tools that use a beam of electrons to visualize extremely small objects with high resolution. Unlike light microscopes, electron microscopes can provide detailed information about the surfaces and internal structures of cells. By using electron beams instead of light, electron microscopes can achieve much higher magnification and resolution, allowing scientists to study cells at a level of detail not possible with other types of microscopes. Therefore, the statement that electron microscopes are used to study great details of surfaces and interior structures of cells is true.

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12.

Transmission Electron Microscope

TEM; Highest Magnification, views slices of cells
TEM; Lowest Magnification, views cork
TEM; Lowest Magnification, views slices of cells

Correct Answer

A. TEM; Highest Magnification, views slices of cells

Explanation

The correct answer is TEM; Highest Magnification, views slices of cells. Transmission Electron Microscopes (TEMs) are used to view the internal structure of cells and other specimens at a very high magnification. By using a beam of electrons to pass through a thin slice of the specimen, TEMs can produce detailed images of the cell's internal structures, such as organelles and membranes. This allows scientists to study the fine details and organization of cells at a level not possible with other microscopes.

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13.

What are the magnification ranges of Transmission electron microscopes (TEM) and Scanning electron microscopes? (SEM)

10,000 times to 99,999 times for SEM; 100,000-500,000 times for TEM
100,000-2,000,000 for both
10,000 times to 99,999 times for SEM; 100,000-2,000,000 times for TEM
Both have no minimum and a highest magnification of 100,000

Correct Answer

A. 10,000 times to 99,999 times for SEM; 100,000-2,000,000 times for TEM

Explanation

The correct answer is 10,000 times to 99,999 times for SEM; 100,000-2,000,000 times for TEM. This means that the magnification range for a scanning electron microscope (SEM) is between 10,000 and 99,999 times, while the magnification range for a transmission electron microscope (TEM) is between 100,000 and 2,000,000 times.

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Microscope And Cell Quiz

Characteristics of a compound microscope

Quiz Preview

How does a light microscope work?

As magnification increases, more details can be seen.

Limits of the resolution of magnification are

Resolution is the capacity to distinguish the individual parts of an object

Resolution is the viewing ability of a microscope.

The ______ is a rotating turret that holds multiple objective lenses of different magnifications.

Ways to enhance the viewing of an object through a light micrsope are...

Describe the advantage of using a light microscope

When was the electron microscope invented and perfected?

Electron microscopes are used to study great details of surfaces and interior structures of cells

Transmission Electron Microscope

What are the magnification ranges of Transmission electron microscopes (TEM) and Scanning electron microscopes? (SEM)