Question 1

You begin your observations using the lens and the adjustment knob.

Accepted Answer

A)  lowest-power, coarse 
B)  midrange-power, coarse 
C)  highest-power, fine 
D)  midrange-power, fine 
A)  lowest-power, coarse 
B)  midrange-power, coarse 
C)  highest-power, fine 
D)  midrange-power, fine A

Question 2

The is a substage lens that concentrates light on the specimen.

Accepted Answer

A)  condenser 
B)  light source 
C)  iris diaphragm lever 
D)  objective lens 
A)  condenser 
B)  light source 
C)  iris diaphragm lever 
D)  objective lens A

Question 3

You are looking at a slide of three crossed threads. Yellow is on the bottom, blue is in the middle, and red is on the top. When you rotate the adjustment knob forward (away from you) on your microscope, the stage rises. You move the adjustment knob to focus on the middle thread. As you rotate the adjustment knob forward, which color thread will come into focus next?

Accepted Answer

A)  red 
B)  blue 
C)  yellow 
A)  red 
B)  blue 
C)  yellow C

Question 4

Before putting away the microscope in the storage cabinet you must observe all of the following except .

Accepted Answer

A)  wrap the cord around the microscope 
B)  clean the lenses 
C)  remove the slide from the stage 
D)  rotate the highest power objective lens in position 
A)  wrap the cord around the microscope 
B)  clean the lenses 
C)  remove the slide from the stage 
D)  rotate the highest power objective lens in position

Question 5

Microscope specimens have depth, as well as length and width. If you are focused on the middle layer of cells and wish to see the top layer of cells clearly, you should move the _.

Accepted Answer

A)  slide toward or away from you 
B)  lens further away from the slide 
C)  slide to the left or right 
D)  lens closer to the slide 
A)  slide toward or away from you 
B)  lens further away from the slide 
C)  slide to the left or right 
D)  lens closer to the slide

Question 6

You have learned that the objective lens magnifies the object on the slide, producing the _ image, and that the ocular lens magnifies that image, forming the _ image.

Accepted Answer

A)  ocular, objective 
B)  virtual, ocular 
C)  objective, real 
D)  real, virtual 
A)  ocular, objective 
B)  virtual, ocular 
C)  objective, real 
D)  real, virtual

Question 7

If the diameter of your microscope field is 1 mm at low power (10×) and your ocular lens is 10×, then what is the diameter of your field when you switch to the 50× objective lens?

Accepted Answer

A)  0.02 mm 
B)  2 mm 
C)  0.002 mm 
D)  0.2 mm 
A)  0.02 mm 
B)  2 mm 
C)  0.002 mm 
D)  0.2 mm

Question 8

You are looking at very lightly stained cells under the microscope, and you want to increase the contrast so that you can see them "better." You _ the iris diaphragm to _ the light.

Accepted Answer

A)  open, dim 
B)  close, increase 
C)  open, increase 
D)  close, dim 
A)  open, dim 
B)  close, increase 
C)  open, increase 
D)  close, dim

Question 9

The working distance for a 10× objective lens is .

Accepted Answer

A)  a little bit greater than the working distance for the 100× objective lens 
B)  much less than the working distance for the 100× objective lens 
C)  much greater than the working distance for the 100× objective lens 
D)  a little bit less than the working distance for the 100× objective lens 
A)  a little bit greater than the working distance for the 100× objective lens 
B)  much less than the working distance for the 100× objective lens 
C)  much greater than the working distance for the 100× objective lens 
D)  a little bit less than the working distance for the 100× objective lens

Question 10

If your ocular lens is 10×, and you are using your 45× objective lens to view a slide, the total magnification is .

Accepted Answer

A)  250× 
B)  450× 
C)  55× 
D)  90× 
A)  250× 
B)  450× 
C)  55× 
D)  90×

Question 11

The total magnification of an object can be found by _ .

Accepted Answer

A)  multiplying the power of the objective lens by the power of the ocular lens 
B)  multiplying the power of the objective lens by the number of objective lenses on your microscope 
C)  dividing the power of the objective lens by the power of the ocular lens 
D)  adding the power of the objective lens and the power of the ocular lens 
A)  multiplying the power of the objective lens by the power of the ocular lens 
B)  multiplying the power of the objective lens by the number of objective lenses on your microscope 
C)  dividing the power of the objective lens by the power of the ocular lens 
D)  adding the power of the objective lens and the power of the ocular lens

Question 12

The microscope field is the _.

Accepted Answer

A)  area you see through the lenses of the microscope 
B)  space near the microscope where you sit 
C)  platform on which the slide rests 
D)  area in which you place the microscope 
A)  area you see through the lenses of the microscope 
B)  space near the microscope where you sit 
C)  platform on which the slide rests 
D)  area in which you place the microscope

Question 13

You are observing the letter "e" under a compound microscope. Which of the following indicates how the image appears as you view it through the ocular lens?

Accepted Answer

A)  e 
B)  a 
C)  E 
D)  e. 
A)  e 
B)  a 
C)  E 
D)  e.

Question 14

This is the formula for calculating the diameter of an unknown microscope field.

Accepted Answer

A)  diameter of field A × total magnification of field A = diameter of field B × total magnification of field B 
B)  diameter of field A + diameter of field B = total magnification of field A + total magnification of field B 
C)  diameter of field A × diameter of field B = total magnification of field A × total magnification of field B 
D)  diameter of field A + total magnification of field A = diameter of field B + total magnification of field B 
A)  diameter of field A × total magnification of field A = diameter of field B × total magnification of field B 
B)  diameter of field A + diameter of field B = total magnification of field A + total magnification of field B 
C)  diameter of field A × diameter of field B = total magnification of field A × total magnification of field B 
D)  diameter of field A + total magnification of field A = diameter of field B + total magnification of field B

Question 15

The of the microscope carries three or four objective lenses.

Accepted Answer

A)  nosepiece 
B)  ocular 
C)  arm 
D)  base 
A)  nosepiece 
B)  ocular 
C)  arm 
D)  base

Question 16

When using the higher power objective lenses, you would use this part of the microscope to focus the specimen.

Accepted Answer

A)  fine adjustment knob 
B)  course adjustment knob 
C)  iris diaphragm lever 
A)  fine adjustment knob 
B)  course adjustment knob 
C)  iris diaphragm lever

Question 17

As you increase the total magnification of the specimen, the size of the field .

Accepted Answer

A)  decreases 
B)  remains the same 
C)  increases 
A)  decreases 
B)  remains the same 
C)  increases

Question 18

As you increase the total magnification of the specimen, the working distance .

Accepted Answer

A)  decreases 
B)  remains the same 
C)  increases 
A)  decreases 
B)  remains the same 
C)  increases

Question 19

You prepare a wet mount of your own cheek cells and place it under the microscope, but find that you cannot see any detail of the cells. What can you do to make details more visible?

Accepted Answer

A)  view at a higher power 
B)  view at a lower power 
C)  prepare another slide and stain with methylene blue 
D)  increase light intensity 
A)  view at a higher power 
B)  view at a lower power 
C)  prepare another slide and stain with methylene blue 
D)  increase light intensity

Question 20

When you want to study a slide under the microscope, you place it on the .

Accepted Answer

A)  head 
B)  stage 
C)  arm 
D)  base 
A)  head 
B)  stage 
C)  arm 
D)  base

Exam 3: The Microscope

You begin your observations using the lens and the adjustment knob.

The is a substage lens that concentrates light on the specimen.

Before putting away the microscope in the storage cabinet you must observe all of the following except .

Microscope specimens have depth, as well as length and width. If you are focused on the middle layer of cells and wish to see the top layer of cells clearly, you should move the _.

You have learned that the objective lens magnifies the object on the slide, producing the _ image, and that the ocular lens magnifies that image, forming the _ image.

If the diameter of your microscope field is 1 mm at low power (10×) and your ocular lens is 10×, then what is the diameter of your field when you switch to the 50× objective lens?

You are looking at very lightly stained cells under the microscope, and you want to increase the contrast so that you can see them "better." You _ the iris diaphragm to _ the light.

The working distance for a 10× objective lens is .

If your ocular lens is 10×, and you are using your 45× objective lens to view a slide, the total magnification is .

The total magnification of an object can be found by _ .

The microscope field is the _.

You are observing the letter "e" under a compound microscope. Which of the following indicates how the image appears as you view it through the ocular lens?

This is the formula for calculating the diameter of an unknown microscope field.

The of the microscope carries three or four objective lenses.

When using the higher power objective lenses, you would use this part of the microscope to focus the specimen.

As you increase the total magnification of the specimen, the size of the field .

As you increase the total magnification of the specimen, the working distance .

You prepare a wet mount of your own cheek cells and place it under the microscope, but find that you cannot see any detail of the cells. What can you do to make details more visible?

When you want to study a slide under the microscope, you place it on the .

The Language of Anatomy

Organ Systems Overview

The Cell: Anatomy and Division

The Cell: Transport Mechanisms and Cell Permeability

Classification of Tissues

The Integumentary System

Overview of the Skeleton: Classification and Structure of Bones and Cartilages

The Axial Skeleton

The Appendicular Skeleton

Articulations and Body Movements

Microscopic Anatomy and Organization of Skeletal Muscle

Gross Anatomy of Muscular System

Skeletal Muscle Physiology: Frogs and Human Subjects

Histology of Nervous Tissue

Neurophysiology of Nerve Impulses: Frog Subjects

Gross Anatomy of the Brain and Cranial Nerves

Electroencephalography

The Spinal Cord and Spinal Nerves

The Autonomic Nervous System

Human Reflex Physiology

General Sensation

Special Senses: Anatomy of the Visual System

Special Senses: Visual Tests and Experiments

Special Senses: Hearing and Equilibrium

Special Senses: Olfaction and Taste

Functional Anatomy of the Endocrine Glands

Endocrine Wet Labs and Human Metabolism

Blood

Anatomy of the Heart

Conduction System of the Heart and Electrocardiography

Anatomy of Blood Vessels

Human Cardiovascular Physiology: Blood Pressure and Pulse Determinations

Frog Cardiovascular Physiology

The Lymphatic System and Immune Response

Anatomy of the Respiratory System

Respiratory System Physiology

Anatomy of the Digestive System

Digestive System Processes: Chemical and Physical

Anatomy of the Urinary System

Urinalysis

Anatomy of the Reproductive System

Physiology of Reproduction: Gametogenesis and the Female Cycles

Survey of Embryonic Development

Principles of Heredity

Surface Anatomy Roundup

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