Question 1

Which part of a compound light microscope is responsible for concentrating light onto the specimen, and should be positioned as close to the stage as possible for optimal illumination?

Accepted Answer

Condenser

Question 2

A student is using a microscope with a 10X ocular lens and a 40X objective lens. What is the total magnification achieved?

Accepted Answer

$$10 	imes 40 = 400$$

Question 3

When switching from a low power objective lens to a high power objective lens, what happens to the field of vision?

Accepted Answer

It decreases

Question 4

Which microscope component is used to regulate the amount of light passing through the specimen?

Accepted Answer

Iris diaphragm

Question 5

A specimen is prepared by shaving a thin piece from the whole specimen to permit light to reveal greater structural detail. What is this preparation method called?

Accepted Answer

Section

Question 6

Which objective lens is most appropriate for viewing extremely small objects, such as blood cells or bacteria, and must be immersed in oil when in use?

Accepted Answer

100X (oil immersion) lens

Question 7

If the minimum distance at which two objects can be perceived as distinct is $$0.2 \ \mu m$$, what is this property of the microscope called?

Accepted Answer

Resolution

Question 8

Which of the following best describes the function of the coarse adjustment knob on a microscope?

Accepted Answer

It brings the specimen into rough focus by adjusting the distance between the objective lens and the specimen

Question 9

A student observes a slide with the letter 'e' under a microscope. When the slide is moved to the right, in which direction does the image appear to move?

Accepted Answer

To the left

Question 10

Which preparation method is most suitable for observing living, unstained cells in suspension under a microscope?

Accepted Answer

Smear or drop

Question 11

Which of the following statements about stem cells is TRUE?

Accepted Answer

Pluripotent stem cells can give rise to a more limited variety of cell types than totipotent stem cells

Question 12

Which tissue type is classified based on the types of cells present, the arrangement of cells, and the amount and type of extracellular material?

Accepted Answer

Epithelial tissue

Question 13

What is the function of the mechanical stage on a microscope?

Accepted Answer

To move the slide forward, backward, and side to side

Question 14

Which of the following best describes the relationship between magnification and working distance in a microscope?

Accepted Answer

As magnification increases, working distance decreases

Question 15

A histologist is examining a tissue sample and notes that the cells are tightly packed with little extracellular material. Which tissue type is most likely being observed?

Accepted Answer

Epithelial tissue

Question 16

Which microscope part is also called the eyepiece and typically has a magnification power of 10X?

Accepted Answer

Ocular lens

Question 17

During specimen preparation, which method involves breaking up the cell suspension by pressure to release chromosomes from nuclei?

Accepted Answer

Squash

Question 18

Which of the following is NOT a function of the sub-stage light in a microscope?

Accepted Answer

Regulates the amount of light passing through the specimen

Question 19

A student is using a microscope and wants to increase the contrast of the specimen. Which adjustment should they make?

Accepted Answer

Adjust the iris diaphragm

Question 20

Which of the following best describes the organizational levels of the human body from least to most complex?

Accepted Answer

Cell, tissue, organ, organ system

Microscopic Anatomy: Microscopy, Cells, and Histology of Epithelial Tissues

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