Lab Exam 1- Measurement, Inspection, Inoculation, Eukayotic

Question 1

What is the function of the condensor on the light microscope?

Answer 1

Focuses the light going into the objective lens

Question 2

What is the function of the Iris Diaphragm on the light microscope?

Answer 2

Adjusts the amount of light going into the objective lens

Question 3

What is the function of the nose piece on the light microscope?

Answer 3

Holds the objective lenses and rotates to change from one object to another

Question 4

What is the function of the course adjustment knob on the light microscope?

Answer 4

Moves the stage larger distances to help get the object in focus

Question 5

What is the function of the fine adjustment knob on the light microscope?

Answer 5

Moves the stage smaller increments to help get the object in focus

Question 6

What is the function of the objective lens on the light microscope?

Answer 6

Magnifies the object. It is near the object

Question 7

What is the function of the occular lens on the light microscope?

Answer 7

Magnifies the image of the object from the objective lens, located near the eye

Question 8

Total Magnification

Answer 8

Objective lens x occular lens

Question 9

what is the purpose of Oil immersion lens

Answer 9

The oil immersion lens is used when oil is added to a slide. The oil must touch both the slide and lens in order to not refract any further

Question 10

Explain Parfocal

Answer 10

Par focal microscopes are able to move from one object to the next and still be in focus due to the length of the objective lens

Question 11

Explain Resolution

Answer 11

The ability to distinguish between two objects that are very close together. resolution is increased when you use oil, with the oil immersion lens