The Function of Organelles Answers

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1)

A
Eyepiece
B
Nosepiece
C
Objectives
D
Stage
3

2)

A
Focus knobs
B
Stage clips
C
Light source
4

3)

A
Arm
B
Base
C
Stage
D
Diaphragm
5

4)

A
Light source
B
Fine-focus knob
C
Base
D
Diaphragm
6

5)

A
Objective Lens
B
Eyepiece
C
Nosepiece
D
Stage
7

6)

A
Base
B
Diaphragm
C
Stage
D
Fine-focus knob
8

Which reasons are the best for using only the fine-focus knob under high power? Select two.

A
The diaphragm will not open wide enough by using the fine-focus knob.
B
The stage or objectives move very little when the knob is turned.
C
The objective will not move enough to risk breaking the glass slide.
D
The coarse-focus knob will not turn when the microscope is set for high power.
9

Which steps below will ensure laboratory safety during the investigation? Check all that apply.

A
plugging in the electrical cord with dry hands
B
recording observations in the data sheets
C
checking the glass slides and cover slips for chips prior to making a wet mount
D
switching to high power after focusing under low power
E
carrying the microscope with both hands
10

When you are carrying a microscope, which of the actions listed below should you do? Check all that apply.

A
Hold the arm with both hands.
B
Put one hand under the base.
C
Put both hands under the base.
D
Hold the arm with your other hand.

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