Vacunes

Question 1

What is the primary function of a microscope?

Answer 1

To magnify small objects or details that are not visible to the naked eye.

Question 2

True or False: A compound microscope uses two or more lenses to magnify an image.

Answer 2

True

Question 3

Fill in the blank: The __________ microscope uses visible light to illuminate the specimen.

Answer 3

light

Question 4

What type of microscope uses electron beams instead of light?

Answer 4

Electron microscope

Question 5

What is the main advantage of using an electron microscope?

Answer 5

It offers much higher resolution than light microscopes.

Question 6

Multiple Choice: Which of the following is a common use of microscopes in biology?
A) Studying large animals
B) Analyzing cellular structures
C) Observing weather patterns
D) Measuring distances

Answer 6

B) Analyzing cellular structures

Question 7

What does the term ‘resolution’ refer to in microscopy?

Answer 7

The ability to distinguish two points as separate entities.

Question 8

True or False: The higher the magnification, the better the resolution.

Answer 8

False

Question 9

What is the purpose of staining specimens in microscopy?

Answer 9

To enhance contrast and make specific structures more visible.

Question 10

Fill in the blank: The __________ microscope is used to observe live cells in their natural environment.

Answer 10

phase contrast

Question 11

What is a stereomicroscope primarily used for?

Answer 11

To view larger, three-dimensional specimens.

Question 12

Multiple Choice: Which microscope is best for observing the surface of a specimen?
A) Transmission Electron Microscope
B) Scanning Electron Microscope
C) Light Microscope
D) Confocal Microscope

Answer 12

B) Scanning Electron Microscope

Question 13

What type of microscopy uses fluorescent dyes to visualize structures?

Answer 13

Fluorescence microscopy

Question 14

True or False: Microscopes can only be used in biological sciences.

Answer 14

False

Question 15

What is the function of the ocular lens in a microscope?

Answer 15

To magnify the image created by the objective lens.

Question 16

Fill in the blank: The __________ is the part of the microscope that holds the slides.

Answer 16

stage

Question 17

What is the role of the diaphragm in a microscope?

Answer 17

To control the amount of light reaching the specimen.

Question 18

Multiple Choice: Which of the following is NOT a type of microscope?
A) Bright-field Microscope
B) Dark-field Microscope
C) Time-field Microscope
D) Phase-contrast Microscope

Answer 18

C) Time-field Microscope

Question 19

What does ‘magnification’ refer to in microscopy?

Answer 19

The process of enlarging the appearance of an object.

Question 20

True or False: A higher numerical aperture indicates better light-gathering ability of the lens.

Answer 20

True

Question 21

What is the typical magnification range for light microscopes?

Answer 21

40x to 1000x

Question 22

Fill in the blank: In electron microscopy, __________ are used to create an image instead of light.

Answer 22

electrons

Question 23

What is the main limitation of light microscopy?

Answer 23

It cannot resolve structures smaller than the wavelength of light.

Question 24

Multiple Choice: Which type of microscopy is best for studying the internal structures of cells?
A) Stereomicroscopy
B) Transmission Electron Microscopy
C) Light Microscopy
D) Scanning Electron Microscopy

Answer 24

B) Transmission Electron Microscopy

Question 25

What is the purpose of immersion oil in microscopy?

Answer 25

To increase resolution by reducing light refraction.

Question 26

True or False: Confocal microscopy provides images with greater depth of field compared to standard fluorescence microscopy.

Answer 26

True

Question 27

What does the term 'field of view' mean in microscopy?

Answer 27

The visible area seen through the microscope.

Question 28

Fill in the blank: The __________ lens is the lens closest to the specimen in a microscope.

Answer 28

objective

Question 29

What is the significance of the focal length in microscopy?

Answer 29

It affects the magnification and resolution of the image.

Question 30

Multiple Choice: Which of the following is a use of microscopes in industry? A) Inspecting electronic components B) Observing weather changes C) Studying social behavior D) Analyzing market trends

Answer 30

A) Inspecting electronic components

Question 31

What is the function of the coarse adjustment knob on a microscope?

Answer 31

To bring the specimen into general focus.

Question 32

True or False: Digital microscopes can capture images and videos for analysis.

Answer 32

True

Question 33

What is a common application of microscopy in medical diagnostics?

Answer 33

Examining blood samples.

Question 34

Fill in the blank: The __________ microscope allows for the visualization of thick specimens by creating images from multiple focal planes.

Answer 34

confocal

Question 35

What is the term for the process of preparing a specimen for microscopic examination?

Answer 35

Specimen preparation

Question 36

Multiple Choice: Which type of microscopy is best for observing live cells? A) Fluorescence Microscopy B) Scanning Electron Microscopy C) Transmission Electron Microscopy D) Bright-field Microscopy

Answer 36

A) Fluorescence Microscopy