The Microscope

Which one of the following instruments would you use to see a plant cell?
1. Microscope
2. Kaleidoscope
3. Telescope
4. Periscope
The diagram shows a microscope. What is the part labelled X and what is its function?
1. The coarse adjustment and its function is to allow you to see a clear, magnified image.
2. The objective lens and its function is to allow you to see a clear, magnified image.
3. The stage and its function is to hold the glass slide.
4. The mirror and its function is to shine light on the glass slide.
When viewing onion cells under a microscope, a few drops of a certain solution are added to stain the cells and show these cells more clearly. Select the correct solution that you should use from the list below.
1. Iodine solution
2. Sugar solution
3. Salt solution
4. Soap solution
The parts labelled Y and Z in the diagram are
1. the eyepiece and mirror respectively
2. the mirror and the eyepiece respectively
3. the objective lens and the turret respectively
4. the eyepiece and the objective lens respectively
Which one of the following parts of a microscope is used to hold the slide in position?
1. The stage
2. The eyepiece
3. The focus adjustment
4. The objective lens
If the eyepiece of a microscope magnifies by 10, and the objective lens magnifies by 4, then what is the total magnification of the microscope?
1. 40
2. 0.4
3. 14
4. 2.5
Which one of the following achievements is Anton Von Leeuwenhoek famous for?
1. He was one of the first people to see and describe red blood cells and other single-celled organisms under the microscope.
2. He was a famous Dutch explorer.
3. He discovered the microscope.
4. He gave the cell its name because they reminded him
  of the small rooms for monks in a monastery.
You should have observed onion cells under the microscope in the laboratory. Which one of the following images shows onion cells as they would appear under a microscope?
In the laboratory, onion cells are investigated using a microscope. Onion cells are difficult to see, so a dye is added to the onion cells. What is this dye called?
1. Iodine solution
2. Hydrochloric acid
3. Water
4. Salt solution
The diagram shows a laboratory microscope.
What are the functions of parts labelled A and B?
1. A: To magnify the object.
  B: To hold the slide on the stage.
2. A: To magnify the object.
  B: To illuminate the object being viewed.
3. A: To adjust the coarse focus.
  B: To illuminate the object being viewed.
4. A: To adjust the fine focus.
  B: To hold the slide on the stage.
When looking at an onion cell under a microscope, a thin slice of onion tissue is placed on a slide, a small drop of dye is placed on the tissue. What should be done next?
1. A coverslip is placed over the onion tissue.
2. The onion is cut into thin slices.
3. The coarse focus is adjusted until the cells become visible.
4. A drawing of the onion cells should be made.
Two of the labelled parts in the diagram combine to give a magnified view of a small organism. What parts are they?
1. A and B
2. A and C
3. B and C
Look at the image of a microscope in the diagram. Identify which part A, B or C is the stage, and select the source of light which illuminates the object being viewed with this microscope.
1. C is the stage and the object is illuminated by sunlight.
2. B is the stage, and the object is illuminated by sunlight.
3. A is the stage and the object is illuminated by a light bulb.
4. C is the stage and the object is illuminated by a light bulb.
Which part of a microscope do you look through to see an object magnified?
1. Eyepiece lens
2. Objective lens
3. Focus knob
4. Stage
This is turned to bring the object being viewed closer.
1. Focus knob
2. Eyepiece lens
3. Objective lens
4. Coverslip
When viewing a sample of onion cells using a microscope, the student placed the cells on a slide and placed a coverslip over it. What is the purpose of the coverslip?
1. To keep the cells flat.
2. To protect the onion.
3. So the onion cells do not fall of the slide.
4. To get a better view of the cells.
WheWhen viewing a sample of onion cells using a microscope, a drop of iodine solution is placed on the onion cells.
Select two reasons why this is so.
1. To see the cells more clearly.
2. To protect the onion cells.
3. To keep the onion cells flat.
4. Onion cells contain starch.
Which two parts of a microscope combine to give a magnified view of a cell?
1. Eyepiece and objective lens
2. Stage and eyepiece
3. Eyepiece and focus knob
4. Light source and objective lens
On a typical microscope, there is a rotating part containing three different objective lenses. What is this part called?
1. Nosepiece
2. Eyepiece
3. Focus knob
4. Stage
To focus on a specimen, it is best to start with which objective lens?
1. Lowest magnification
2. Intermediate magnification
3. Highest magnification
The photo shows a light microscope used by many schools.
From the following list, choose the correct order in which light passes through it.
1. Mirror ➞ slide ➞ objective lens ➞ eyepiece
2. Mirror ➞ objective lens ➞ eyepiece ➞ slide
3. Mirror ➞ eyepiece ➞ objective lens ➞ slide
4. Slide ➞ eyepiece ➞ objective lens ➞ mirror

The Microscope

Multiple Choice Quiz