Question 1

Convert 0.75 mm into μm.

Accepted Answer

A) 0)75 μm 
B) 750 μm 
C) 0)0075 μm 
D) 75 μm 
A) 0)75 μm 
B) 750 μm 
C) 0)0075 μm 
D) 75 μm B

Question 2

When transporting a microscope, ________.

Accepted Answer

A) the 100× objective lens should be closest to the stage 
B) the condenser should be removed and stored in its compartment 
C) use both hands to hold it by the base 
D) the cord should be secured 
A) the 100× objective lens should be closest to the stage 
B) the condenser should be removed and stored in its compartment 
C) use both hands to hold it by the base 
D) the cord should be secured D

Question 3

-Identify the microscope part labeled by the letter "c."

Accepted Answer

A) Ocular lens 
B) Objective lens 
C) Revolving nosepiece 
D) Condenser 
A) Ocular lens 
B) Objective lens 
C) Revolving nosepiece 
D) Condenser B

Question 4

The working distance is the ________.

Accepted Answer

A) space between the slide and specimen and the objective lens 
B) space between the ocular and objective lens 
C) space between the condenser and ocular lens 
D) space between your eye and the ocular lens 
A) space between the slide and specimen and the objective lens 
B) space between the ocular and objective lens 
C) space between the condenser and ocular lens 
D) space between your eye and the ocular lens

Question 5

If you have three threads laying on top of each other on a slide and you are focused on the top-most thread, then ________.

Accepted Answer

A) all three threads should be in clear focus 
B) you are ready to rotate the ocular lens 
C) neither the middle nor the bottom-most thread will be in clear focus 
D) the middle thread will also be in clear focus 
A) all three threads should be in clear focus 
B) you are ready to rotate the ocular lens 
C) neither the middle nor the bottom-most thread will be in clear focus 
D) the middle thread will also be in clear focus

Question 6

When you put away a microscope, which objective lens should be closest to the stage?

Accepted Answer

A) Low-power 
B) Scanning 
C) Oil-immersion 
D) High-power 
A) Low-power 
B) Scanning 
C) Oil-immersion 
D) High-power

Question 7

The field diameter for the 4× objective on a specific microscope is 4.0 mm. What will the field diameter be for the 10× objective?

Accepted Answer

A) 2 mm 
B) 1)6 mm 
C) 10 mm 
D) 40 mm 
A) 2 mm 
B) 1)6 mm 
C) 10 mm 
D) 40 mm

Question 8

Convert 62.3 μm into mm.

Accepted Answer

A) 0)623 mm 
B) 62300 mm 
C) 6230 mm 
D) 0)0623 mm 
A) 0)623 mm 
B) 62300 mm 
C) 6230 mm 
D) 0)0623 mm

Question 9

An object extends halfway across the field of view. The field diameter for the oil-immersion objective is 0.2 mm. Estimate the size of the object in micrometers (μm).

Accepted Answer

A) 0)01 μm 
B) 10 μm 
C) 100 μm 
D) 0)1 μm 
A) 0)01 μm 
B) 10 μm 
C) 100 μm 
D) 0)1 μm

Question 10

Convert 245 μm into mm.

Accepted Answer

A) 245,000 mm 
B) 0)245 mm 
C) 0)0245 mm 
D) 2)45 mm 
A) 245,000 mm 
B) 0)245 mm 
C) 0)0245 mm 
D) 2)45 mm

Question 11

Which part of the microscope is the circular area on the stage that light passes through?

Accepted Answer

A) Aperture 
B) Arm 
C) Iris diaphragm 
D) Ocular lens 
A) Aperture 
B) Arm 
C) Iris diaphragm 
D) Ocular lens

Question 12

-Identify the microscope part labeled by the letter "d."

Accepted Answer

A) Stage 
B) Base 
C) Arm 
D) Head 
A) Stage 
B) Base 
C) Arm 
D) Head

Question 13

You should use lens paper and ________ to the clean the lenses.

Accepted Answer

A) lens cleaner 
B) disinfectant 
C) water 
D) oil 
A) lens cleaner 
B) disinfectant 
C) water 
D) oil

Question 14

What part of the microscope moves the slide on the stage?

Accepted Answer

A) Fine adjustment knob 
B) Mechanical stage control 
C) Iris diaphragm 
D) Aperture 
A) Fine adjustment knob 
B) Mechanical stage control 
C) Iris diaphragm 
D) Aperture

Question 15

What is depth of field?

Accepted Answer

A) Distance between the ocular and objective lenses 
B) Distance between the slide and the objective lens 
C) Another term for field diameter 
D) Thickness of a specimen when in focus 
A) Distance between the ocular and objective lenses 
B) Distance between the slide and the objective lens 
C) Another term for field diameter 
D) Thickness of a specimen when in focus

Question 16

The field diameter for the low-powered objective is ________ the field diameter for the scanning objective lens.

Accepted Answer

A) less than 
B) equal to 
C) greater than 
A) less than 
B) equal to 
C) greater than

Question 17

If the field diameter of the high-powered objective is 0.5 mm, what is the field diameter of this objective in µm?

Accepted Answer

A) 500 μm 
B) 0)005 μm 
C) 50 μm 
D) 0)05 μm 
A) 500 μm 
B) 0)005 μm 
C) 50 μm 
D) 0)05 μm

Question 18

You are viewing a gland at 100× total magnification and the microscope at that magnification has a field diameter of 5 mm. The gland's width takes up one-quarter of the view. What is the size of the gland in mm?

Accepted Answer

A) 10 mm 
B) 1)25 mm 
C) 20 mm 
D) 0)8 mm 
A) 10 mm 
B) 1)25 mm 
C) 20 mm 
D) 0)8 mm

Question 19

What is the working distance?

Accepted Answer

A) Distance between the stage and light source 
B) Distance between the slide and structure and the objective lens 
C) Distance between the objective and ocular lenses 
D) Distance between the human eye and ocular lens 
A) Distance between the stage and light source 
B) Distance between the slide and structure and the objective lens 
C) Distance between the objective and ocular lenses 
D) Distance between the human eye and ocular lens

Question 20

Compare regulating the amount of light with condensing the light.

Accepted Answer

A) Condensers narrow the beam of light but do not change the amount of light. 
B) Both can be changed by using the iris diaphragm. 
C) Both can be used to concentrate the light passing through the specimen. 
D) You do not need to condense the light if you use the iris diaphragm correctly. 
A) Condensers narrow the beam of light but do not change the amount of light. 
B) Both can be changed by using the iris diaphragm. 
C) Both can be used to concentrate the light passing through the specimen. 
D) You do not need to condense the light if you use the iris diaphragm correctly.

Exam 4: The Microscope

Convert 0.75 mm into μm.

When transporting a microscope, ________.

-Identify the microscope part labeled by the letter "c."

The working distance is the ________.

If you have three threads laying on top of each other on a slide and you are focused on the top-most thread, then ________.

When you put away a microscope, which objective lens should be closest to the stage?

The field diameter for the 4× objective on a specific microscope is 4.0 mm. What will the field diameter be for the 10× objective?

Convert 62.3 μm into mm.

An object extends halfway across the field of view. The field diameter for the oil-immersion objective is 0.2 mm. Estimate the size of the object in micrometers (μm).

Convert 245 μm into mm.

Which part of the microscope is the circular area on the stage that light passes through?

-Identify the microscope part labeled by the letter "d."

You should use lens paper and ________ to the clean the lenses.

What part of the microscope moves the slide on the stage?

What is depth of field?

The field diameter for the low-powered objective is ________ the field diameter for the scanning objective lens.

If the field diameter of the high-powered objective is 0.5 mm, what is the field diameter of this objective in µm?

You are viewing a gland at 100× total magnification and the microscope at that magnification has a field diameter of 5 mm. The gland's width takes up one-quarter of the view. What is the size of the gland in mm?

What is the working distance?

Compare regulating the amount of light with condensing the light.

Introduction to Anatomy and Physiology

Introduction to the Organ Systems

Chemistry

The Cell

Histology

The Integumentary System

Introduction to the Skeletal System

The Axial Skeleton

The Appendicular Skeleton

Joints

Introduction to the Muscular System: Muscle Tissue

Gross Anatomy of the Muscular System

Introduction to the Nervous System

The Central Nervous System: Brain and Spinal Cord

The Peripheral Nervous System: Nerves and Autonomic Nervous System

General and Special Senses

The Endocrine System

Blood

Anatomy of the Heart

Physiology of the Heart

Anatomy of Blood Vessels

Circulatory Pathways and the Physiology of Blood Vessels

The Lymphatic System

Anatomy of the Respiratory System

Physiology of the Respiratory System

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Physiology of the Digestive System

Anatomy of the Urinary System

Physiology of the Urinary System

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