I.Choose the letter of your answer
1.Which would be the best choice for viewing internal structures of a living protist

such as a Paramecium?

a. a brightfield microscope with a stain

b. a brightfield microscope without a stain

c. a darkfield microscope

d. a transmission electron microscope

2.Which type of microscope is especially useful for viewing thick structures such as

biofilms?

a. a transmission electron microscope

b. a scanning electron microscopes

c. a phase-contrast microscope

d. a confocal scanning laser microscope

3.Which type of microscope would be the best choice for viewing very small surface

structures of a cell?

a. a transmission electron microscope

b. a scanning electron microscope

c. a brightfield microscope

d. a darkfield microscope

4.What type of microscope uses an annular stop?

a. a transmission electron microscope

b. a scanning electron microscope

c. a brightfield microscope

d. a phase-contrast microscope

5.What type of microscope uses a cone of light so that light only hits the specimen

indirectly, producing a darker image on a brighter background?

a. a transmission electron microscope

b. a scanning electron microscope

c. a darkfield microscope

d. a brightfield microscope
6. Which of the following is NOT magnifying part of the microscope?

a. Ocular

b. objective lens

c. Oil immersion objective d. mirror

7. Which part of the microscope do you use to look through?

a. eyepiece b. objective lens

c. mirror

d. revolving nosepiece

8. A drawing of a cell indicates that is has been magnified 600x. If the objective is

60x, what is the magnifying power of the eyepiece?

a. 10x

b. 100x

c. 600x

d. 36,000x

9. What would you do if you need to increase the magnification of the object you are

studying?

a. Turn the coarse adjustment knob and adjust it to scanner.

b. Turn the coarse adjustment knob and adjust to the lower power objective.

c. Rotate the revolving nosepiece until the low power objective is in place.

d. Rotate the revolving nosepiece until the high power objective is in place

10.When using the manual microscope, which knob should not be used when

focusing a high power objective?

a. fine adjustment knob c. coarse ​