Question 1

The following are all guidelines for proper use of a microscope EXCEPT which statement?

Accepted Answer

A)  Completely unwind the electrical plug before plugging it in. 
B)  Store the microscope with the low-power objective lens in position. 
C)  When cleaning the lens of a microscope, use water and a paper towel. 
D)  Carry the microscope with two hands at all times. 
A)  Completely unwind the electrical plug before plugging it in. 
B)  Store the microscope with the low-power objective lens in position. 
C)  When cleaning the lens of a microscope, use water and a paper towel. 
D)  Carry the microscope with two hands at all times. C

Question 2

What part of the microscope is mounted on the nosepiece?

Accepted Answer

A)  objective lenses 
B)  focus knobs 
C)  iris diaphragm 
D)  condenser 
A)  objective lenses 
B)  focus knobs 
C)  iris diaphragm 
D)  condenser A

Question 3

Which of the following is NOT a step in preparing a wet-mount?

Accepted Answer

A)  Place the specimen on the slide and add a small drop of water to it. 
B)  Use the coarse adjustment knob to move the objective lens as close to the specimen as possible without touching the slide. 
C)  Do not use a coverslip with a wet-mount preparation. 
D)  Using tweezers or your fingers, touch the water stain with the edge of the coverslip. 
A)  Place the specimen on the slide and add a small drop of water to it. 
B)  Use the coarse adjustment knob to move the objective lens as close to the specimen as possible without touching the slide. 
C)  Do not use a coverslip with a wet-mount preparation. 
D)  Using tweezers or your fingers, touch the water stain with the edge of the coverslip. C

Question 4

All of the following are guidelines for cleaning the oil-immersion lens EXCEPT which statement?

Accepted Answer

A)  Use a paper towel to wipe the oil off the lens. 
B)  Use the coarse focus knob and move the objective lens away from the slide to create a working space for cleaning. 
C)  Use a lens tissue to wipe the oil off the lens. 
D)  Place a drop of lens-cleaning solution on the paper and completely remove any remaining oil. 
A)  Use a paper towel to wipe the oil off the lens. 
B)  Use the coarse focus knob and move the objective lens away from the slide to create a working space for cleaning. 
C)  Use a lens tissue to wipe the oil off the lens. 
D)  Place a drop of lens-cleaning solution on the paper and completely remove any remaining oil.

Question 5

The ________ is the supportive frame of the microscope that joins the body tube to the base.

Accepted Answer

A)  body tube 
B)  base 
C)  arm 
D)  nosepiece 
A)  body tube 
B)  base 
C)  arm 
D)  nosepiece

Question 6

Which of the following is NOT one of the four basic steps in successfully viewing a specimen under the microscope?

Accepted Answer

A)  setup 
B)  placing the specimen on the stage of the microscope 
C)  focusing 
D)  magnification 
A)  setup 
B)  placing the specimen on the stage of the microscope 
C)  focusing 
D)  magnification

Question 7

All of the following are steps in setting up the microscope in order to view a specimen EXCEPT ________.

Accepted Answer

A)  plugging in the electrical cord and turning the microscope lamp on 
B)  focusing 
C)  checking the position of the condenser 
D)  positioning the low-magnification objective lens over the aperture 
A)  plugging in the electrical cord and turning the microscope lamp on 
B)  focusing 
C)  checking the position of the condenser 
D)  positioning the low-magnification objective lens over the aperture

Question 8

Depth of field is ________.

Accepted Answer

A)  greatest at high power and decreases as magnification increases 
B)  greatest at low power and increases as magnification increases 
C)  greatest at low power and decreases as magnification increases 
D)  greatest at high power and increases as magnification increases 
A)  greatest at high power and decreases as magnification increases 
B)  greatest at low power and increases as magnification increases 
C)  greatest at low power and decreases as magnification increases 
D)  greatest at high power and increases as magnification increases

Question 9

All of the following are ways to best control the magnification of the microscope EXCEPT which statement?

Accepted Answer

A)  To examine part of the specimen at higher magnification, move that part of the slide to the center over the aperture before changing to a higher-magnification lens. 
B)  To examine part of the specimen at higher magnification, move that part of the specimen off to the side. 
C)  Always use low magnification during your initial observation. 
D)  Use a drop of immersion oil to look at the specimen under the highest magnification. 
A)  To examine part of the specimen at higher magnification, move that part of the slide to the center over the aperture before changing to a higher-magnification lens. 
B)  To examine part of the specimen at higher magnification, move that part of the specimen off to the side. 
C)  Always use low magnification during your initial observation. 
D)  Use a drop of immersion oil to look at the specimen under the highest magnification.

Question 10

As the magnification ________, the field diameter ________.

Accepted Answer

A)  increases; increases 
B)  decreases; decreases 
C)  increases; decreases 
D)  none of the above 
A)  increases; increases 
B)  decreases; decreases 
C)  increases; decreases 
D)  none of the above

Question 11

All of the following are correct steps in focusing on a specimen under the microscope EXCEPT which statement?

Accepted Answer

A)  Once the image is clear, use the fine adjustment knob to focus on small details. 
B)  When you are ready to change magnification, do not move the adjustment knobs before changing the objective lens. 
C)  If two images are visible, slowly move the body tubes closer together until you see with both eyes open, a single circular field of view. 
D)  Start with a high power objective lens when focusing. 
A)  Once the image is clear, use the fine adjustment knob to focus on small details. 
B)  When you are ready to change magnification, do not move the adjustment knobs before changing the objective lens. 
C)  If two images are visible, slowly move the body tubes closer together until you see with both eyes open, a single circular field of view. 
D)  Start with a high power objective lens when focusing.

Question 12

The focal plane thickness ________ as magnification ________.

Accepted Answer

A)  decrease; decreases 
B)  increases; increases 
C)  decreases; increases 
D)  none of the above 
A)  decrease; decreases 
B)  increases; increases 
C)  decreases; increases 
D)  none of the above

Question 13

As magnification increases ________.

Accepted Answer

A)  the field diameter increases 
B)  the field diameter decreases 
A)  the field diameter increases 
B)  the field diameter decreases

Question 14

The oil immersion objective is typically ________.

Accepted Answer

A)  45X 
B)  1000X 
C)  10,000X 
D)  100X 
A)  45X 
B)  1000X 
C)  10,000X 
D)  100X

Question 15

If the field diameter is 8mm and an object occupies one-half of the field, the object is approximately ________ wide.

Accepted Answer

A)  6mm 
B)  2mm 
C)  7mm 
D)  4mm 
A)  6mm 
B)  2mm 
C)  7mm 
D)  4mm

Question 16

The following are all procedures to measure the field diameter EXCEPT which statement?

Accepted Answer

A)  Position the slide so that a vertical line on the paper lines up with the edge of the field. 
B)  Count the number of millimeters across the field to measure the field diameter. 
C)  Use your low-power measured field diameter to calculate the field diameter for high power. 
D)  Position the slide so that the horizontal line on the paper is on the top of the field. 
A)  Position the slide so that a vertical line on the paper lines up with the edge of the field. 
B)  Count the number of millimeters across the field to measure the field diameter. 
C)  Use your low-power measured field diameter to calculate the field diameter for high power. 
D)  Position the slide so that the horizontal line on the paper is on the top of the field.

Question 17

The in-focus thickness of a specimen viewed under a microscope is called the ________.

Accepted Answer

A)  field of view 
B)  resolution 
C)  focal plane 
D)  depth of field 
A)  field of view 
B)  resolution 
C)  focal plane 
D)  depth of field

Question 18

The ability to distinguish between two objects located close to each other is called ________.

Accepted Answer

A)  resolution 
B)  depth of field 
C)  total magnification 
D)  field of view 
A)  resolution 
B)  depth of field 
C)  total magnification 
D)  field of view

Question 19

All of the following are guidelines for using the oil-immersion lens EXCEPT which statement?

Accepted Answer

A)  Once your slide is in position place a drop of oil on the slide and focus first at low power. 
B)  Place the slide on the microscope and focus first on low power, then medium and the high dry magnifications. 
C)  Once the oil is applied and the oil-immersion objective lens is moved in place, focus the lens with the fine focus knob. 
D)  Once the oil-immersion lens is in place, swing the objective away from the slide and add a small drop of oil 
A)  Once your slide is in position place a drop of oil on the slide and focus first at low power. 
B)  Place the slide on the microscope and focus first on low power, then medium and the high dry magnifications. 
C)  Once the oil is applied and the oil-immersion objective lens is moved in place, focus the lens with the fine focus knob. 
D)  Once the oil-immersion lens is in place, swing the objective away from the slide and add a small drop of oil

Question 20

The ________ is the eyepiece where you place your eyes to observe the specimen.

Accepted Answer

A)  condenser 
B)  nosepiece 
C)  objective lenses 
D)  ocular lens 
A)  condenser 
B)  nosepiece 
C)  objective lenses 
D)  ocular lens

Exam 4: Use of the Microscope

The following are all guidelines for proper use of a microscope EXCEPT which statement?

What part of the microscope is mounted on the nosepiece?

Which of the following is NOT a step in preparing a wet-mount?

All of the following are guidelines for cleaning the oil-immersion lens EXCEPT which statement?

The ________ is the supportive frame of the microscope that joins the body tube to the base.

Which of the following is NOT one of the four basic steps in successfully viewing a specimen under the microscope?

All of the following are steps in setting up the microscope in order to view a specimen EXCEPT ________.

Depth of field is ________.

All of the following are ways to best control the magnification of the microscope EXCEPT which statement?

As the magnification ________, the field diameter ________.

All of the following are correct steps in focusing on a specimen under the microscope EXCEPT which statement?

The focal plane thickness ________ as magnification ________.

As magnification increases ________.

The oil immersion objective is typically ________.

If the field diameter is 8mm and an object occupies one-half of the field, the object is approximately ________ wide.

The following are all procedures to measure the field diameter EXCEPT which statement?

The in-focus thickness of a specimen viewed under a microscope is called the ________.

The ability to distinguish between two objects located close to each other is called ________.

All of the following are guidelines for using the oil-immersion lens EXCEPT which statement?

The ________ is the eyepiece where you place your eyes to observe the specimen.

Laboratory Safety

Introduction to the Human Body

Organ Systems Overview

Anatomy of the Cell and Cell Division

Movement Across Plasma Membranes

Epithelial Tissue

Connective Tissue

Muscle Tissue

Neural Tissue

Integumentary System

Body Membranes

Organization of the Skeletal System

Axial Skeleton

Appendicular Skeleton

Articulations

Organization of Skeletal Muscles

Muscles of the Head and Neck

Muscles of the Vertebral Column, Abdomen, and Pelvis

Muscles of the Pectoral Girdle and Upper Limb

Muscles of the Pelvic Girdle and Lower Limb

Muscle Physiology

Organization of the Nervous System

Spinal Cord, Spinal Nerves, and Reflexes

Anatomy of the Brain

Autonomic Nervous System

General Senses

Special Senses

Anatomy of the Eye

Physiology of the Eye

Anatomy of the Ear

Physiology of the Ear

Endocrine System

Blood

Anatomy of the Heart

Anatomy of the Systemic Circulation

Cardiovascular Physiology

Lymphatic System

Anatomy of the Respiratory System

Physiology of the Respiratory System

Anatomy of the Digestive System

Digestive Physiology

Anatomy of the Urinary System

Physiology of the Urinary System

Anatomy of the Reproductive System

Development

Surface Anatomy

Pig Muscular System

Pig Nervous System

Pig Endocrine System

Pig Circulatory System

Pig Lymphatic System

Pig Respiratory System

Pig Digestive System

Pig Urinary System

Pig Reproductive System

Cat Muscular System

Cat Nervous System

Cat Endocrine System

Cat Circulatory System

As the magnification , the field diameter .

The focal plane thickness as magnification .