Direction: Multiple choice: Read carefully each item.

Encircle the letter of the best answer for each

test item.

1. Which one of the following instruments would you use to see a plant cell?
a. Microscope b. Telescope c. Kaleidoscope d. Periscope

2. To focus on specimen, it is best to start with which objective lens?

a. Highest magnification c. Lowest magnification
b. Intermediate magnification d. No magnification

3. All the following are components of compound microscope except

a. Stage clips b. fine adjustment c. electron gun d. eye piece

4. The diagram below shows a microscope. What is the part labelled X and what is its
function?

a. The mirror and its function is to shine light on the glass slide.
b. The coarse adjustment and its function is to allow you to see a clear, magnified image.
c. The objective lens and its function is to allow you to see a clear, magnified image.
d. The stage and its function is to hold the glass slide.

5. Which one of the following parts of a microscope is used to hold the slide in position?
a. The objective lens b. The stage c. The eyepiece d. The focus adjustment

6. Which two parts of a microscope combine to give a magnified view of a cell?

a. Eyepiece and focus knob c. Stage and eyepiece
b. Eyepiece and objective lens d. Light source and objective lens

7. A group of the same species living together is a/an

a. population b. ecosystem c. biome d. community

8. On a typical microscope, there is a rotating part containing three different objective lenses.
What is this part called?

a. Stage b. Nosepiece c. Eyepiece d. Focus knob

 9. 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.

a. C is the stage and the object is illuminated by a light bulb.

b. A is the stage and the object is illuminated by a light bulb.
c. B is the stage, and the object is illuminated by sunlight.
d. C is the stage and the object is illuminated by sunlight

10. Which part of the microscope is turned to bring the object being viewed closer?
a. Focus Knob b. Cover slip c. Eyepiece lens d. Objective lens

11. The photo shows a light microscope used by many schools.

From the following list, choose the correct order in which light passes through it.
a. Mirror ➞ objective lens ➞ eyepiece ➞ slide
b.  Mirror ➞ slide ➞ objective lens ➞ eyepiece
c.  Mirror ➞ eyepiece ➞ objective lens ➞ slide
d. Slide ➞ eyepiece ➞ objective lens ➞ mirror

12. Which part of a microscope do you look through to see an object magnified?
a. Stage b. Objective lens c. Eyepiece lens d. Focus knob

13. Two of the labelled parts in the diagram combine to give a magnified view of a small
organism. What parts are they?

a. B and C b. A and B c. A and C d. A and D

14. Which lens part of the compound microscope helps in focusing light rays on the
specimen to be viewed?
a. Condenser b. Nosepiece c. Objectives d. Ocular
15. Organs that work together to perform a related function is called _____________?
a.cells b. tissues c. organ d. organ system

16. Which of the following parts should be adjusted to change the objective lens from
scanner to HPO?
a. Inclination Joint c. Stage
b. Revolving Nosepiece d. Body Tube

17. A group of tissues that work together to perform a similar function is called_____.
(Examples include the heart, lungs or stomach)
a. Cells b. Organs c. Tissues d. Organ system

18. Which part of the microscope should be used in focusing in order to obtain a sharp
image in observing a plant specimen under HPO?
a. Ocular Lens c. Fine Adjustment Knob
b. Low Power Objective d. Coarse Adjustment Knob

19. Different organs system assembled in animals and human beings to form a/an
a. individual b. system c. organelle d. organs

20. Which type of objective is ideal to use for observing very fine detail, such as nerve
cells in the retina or the striations in skeletal muscle?
a. Eyepiece c. Low Power Objective
b. High Power Objective d. Oil Immersion Objective

21. A group of similar individuals that actually or potentially interbreed in nature is called
a. Community b. Population c. Groups d. Species

22. Which part supports the entire weight of the microscope?

a. Arm b. Base c. Stage d. mirror

23. Which of the following is the correct order of organization?

a. biosphere-community- tissues-cells-organs-organ systems- organism-population-
biome-ecosystem
b. cell-tissue-organs-organ systems-organism-population-community-ecosystem-
biomes-biosphere
c. population-organism-cells-tissues-organ-organ systems-community-ecosystem-
biome-biosphere
d. organism-tissues-cells-organs-organ systems-biosphere-biome-community-
ecosystem-population
24. Which one does NOT belong to the group?
a. ecosystem b. population c. community d. tissue

25. A plant cell is viewed using a 10X eyepiece and a 43x HPO. How much
will the cell be magnified?
a. 430 times b. 43 times c. 143 times d. 4300 times
 26. Which of the following units is the lowest level of biological system?
a. cell b. molecule c. tissue d. macromolecule

27. What is the correct way of carrying a microscope?

a. Hold the arm by grasping it with one hand and support the base with the 
              other hand.
b. Hold the arm by grasping with one hand and the stage with the other hand.
c. Hold the base by grasping with two hands.
d. Hold the arm by grasping with one hand.

28. How do we call the association of similar cells doing the same function?
a. organ b. organisms c .tissue d. organ system

29. If you look through the microscope and it looks dark which one of these will not help?
a. adjusting the mirror or light
b. checking the diaphragm
c. turning the coarse adjustment knob
d. making sure that nosepiece is clicked into place 

30. Anything that can perform life processes by itself is a/an

a. cell b. organ c. organism d. organ system

31. You have used the compound microscope to view a slide of the letter “e” with the 10X
objective and the 10X eyepiece. What was the total magnification of the letter “e” in that case?
a. 20X b. 50X c. 100X d. 1000X

32. Smoking causes diseases in the respiratory system which may damage the organs and tissues.
What is the effect of diseases cells on the higher levels of organization in an organism?
a. Smoking affects only certain kinds of organs and does not affect any other kind of organ in
the human body.
b. Diseased cells damage the higher levels of organization they make up tissues, organs, organ
systems and eventually, the whole organisms.
c. Smoking affects only the next higher levels of organization that they make up-the tissues.
d. Diseased cells do not affect the other parts of an organism.

33. In focusing the microscope, if you want to move the image up, which way should you move
the slide?
a. upward b. downward c. sideward d. any of the choices

34. Cancer starts from cells that start to grow uncontrollably fast. They destroy tissues and
organs. What does this say about the effects of diseased cells on the higher levels of organization
in an organism?
a. Diseased cells do not affect the other parts of an organism.
b. Cancer involves only certain kinds of cells and does not affect any other kind of cell.
c. Diseased cells affect only the next higher levels of organization that they make up-the tissues.
d. Diseased cells damage the higher levels of organization that they make up: tissues, organs,
organ systems and eventually, the whole organism.

35. When the letter “e” slide moved forward it appears to move __________
         a. backward b. left c. forward d. right
36. The part of the microscope that connects the eyepiece to the nosepiece is the ________ .
a. stage b. body tube c. diaphragm d. mirror

37. Aurora is studying the levels of structural organization of an animal’s body. Which level would
describe a dog’s eye?
a. organ b. tissue c. organism d. organ system

38. Which of the following is not the proper way to use the microscope?
a. use direct sunlight when mirror is the light source
b. use fine adjustment under high power
c. use low power objective lens first
d. use stage clips to hold the slide in place

39. When using the manual microscope, which knob should not be used when focusing on high-
power?
a. Course adjustment knob
b. Fine adjustment knob
c. Low-power objective lens
d. High-power objective lens

40. The kidneys functions are to filter and to remove the waste from the blood which is harmful to the
body. What might happen to the person if it fails to function?
a. The kidney will be damaged
b. The cells of the kidney will be affected
c. There is no significant effect to the person
d. The person will suffer and need to undergo dialysis treatment.