The Cell

1. You are viewing a specimen under the low power objective, but it appears blurry. You want to make it clearer without shifting the field of view. What part should you adjust?

• A. Coarse adjustment knob

• B. Fine adjustment knob

• C. Revolving nosepiece

• D. Stage clip

2. While preparing to observe onion cells, you place the slide on the stage but it keeps moving. What part will secure the slide in place?

• A. Diaphragm

• B. Eyepiece

• C. Stage clips

• D. Light

3. You want to switch from low power to high power magnification. What part will you use to change the objective lens?

• A. Base

• B. Eyepiece

• C. Revolving nosepiece

• D. Stage

4. You are adjusting the microscope to let in more light to better see the specimen. What part should you manipulate?

• A. Arm

• B. Coarse adjustment knob

• C. Diaphragm

• D. Ocular lens

5. After plugging in the microscope and turning it on, there is still no light passing through the specimen. What part might be malfunctioning?

• A. Arm

• B. Base

• C. Light source

• D. Objective lens

6. A student wants to carry the microscope from one lab bench to another. What two parts should they hold for safe handling?

• A. Arm and base

• B. Eyepiece and arm

• C. Fine adjustment knob and arm

• D. Stage and base

7. You observe that your field of view is very dim even when the light is on. What part can help you adjust the amount of light entering the lens system?

• A. Coarse adjustment knob

• B. Diaphragm

• C. Eyepiece

• D. Stage clip

8. A student complains that the blurry. Which part of the microscope causes this focusing failed?

• A. Diaphragm

• B. Base

• C. Objective lens

• D. Stage

9. You need to begin focusing on a new slide using the lowest magnification. Which parts must you use?

• A. Eyepiece and diaphragm

• B. stage and fine adjustment

• C. coarse adjustment and fine adjustment

• D. Stage and light source

10. While using the microscope, suddenly loss of power. Which part of the microscope need to use to continue the activity?

• A. Objective lens

• B. Diaphragm

• C. Mirror

• D. Light Switch