II. Multiple Choice Directions: Read the statements and choose the letter of the correct answer. Write your answer on the space provided before each number.
1. What do you call the bright circle of light when viewing a specimen through the eyepiece?
a. blind spot c. field of view b. eyepiece vision d. reflection
2. When looking at letter "e" under the microscope, what is the position of the letter as seen under the microscope? a. The position stays the same.
b. The "e" is positioned diagonally.
c. The letter "e" appears larger and inverted.
d. The position cannot be identified due to its enlarged magnification.
3. Julia was observing an onion cell under the High Power Objective (HPO) and she noticed that it moved upward and then it moved to the right. What does this tell Julia about the actual movement of the specimen?
a. The specimen moved upward and to the left.
b. The specimen moved upward and to the right.
c. The specimen moved downward and to the right.
d. The specimen actually moved downward and to the left.
4. The following statements describe how to focus a specimen under the compound microscope, EXCEPT:
a. Aim the mirror at your light source.
b. Use the fine adjustment knob to bring the specimen into focus.
C. Adjust the stage in order to find the center focus of the specimen.
d. Move the coarse adjustment knob towards you.
Answers & Comments
Answer:
1. What do you call the bright circle of light when viewing a specimen through the eyepiece?
— c. field of view
2. When looking at letter "e" under the microscope, what is the position of the letter as seen under the microscope?
—c. The letter "e" appears larger and inverted.
3. Julia was observing an onion cell under the High Power Objective (HPO) and she noticed that it moved upward and then it moved to the right. What does this tell Julia about the actual movement of the specimen?
—b. The specimen moved upward and to the right.
4. The following statements describe how to focus a specimen under the compound microscope, EXCEPT:
—a. Aim the mirror at your light source.