SUMMATIVE TEST IN SCIENCE
Grade: 7 Quarter: 2 Week: 1
Name: ______________________________ Score: ____________________
Part I – Multiple Choice: Choose the best answer.
1. What instrument is used to magnify small objects not visible to the
nakedeye?
A. Telescope B. Microscope
C. Magnifying glass D. Binoculars
2. Which part of the microscope is used to support it when carried?
A. Stage B. Base
C. Arm D. Diaphragm
3. The lens at the top of the microscope that you look through is called
the
A. Eyepiece B. Objective lens
C. Condenser D. Stage clip
4. Which knob is used for large adjustments in focusing?
A. Coarse adjustment knob B. Fine adjustment knob
C. Revolving nosepiece D. Diaphragm
5. The function of the diaphragm in a microscope is to
A. Hold the slide B. Control the amount of light
C. Magnify the specimen D. Clean the lens
6. Which organelle is known as the powerhouse of the cell?
A. Nucleus B. Mitochondrion
C. Ribosome D. Chloroplast
7. Which organelle contains chlorophyll and is the site of photosynthesis?
A. Mitochondrion B. Chloroplast
C. Nucleus D. Cytoplasm
8. Which organelle controls all activities of the cell?
A. Nucleus B. Mitochondrion
C. Ribosome D. Cell wall
9. A human is an example of a/an
A. Unicellular organism B. Multicellular organism
C. Prokaryote D. Bacterium
10. Bacteria are examples of
A. Multicellular organisms B. Unicellular organisms
C. Fungi D. Plants
Part II – True or False: Write T if the statement is true and F if false.
11. The eyepiece of a microscope is also called the ocular lens.
12. The base of the microscope is used for carrying it.
13. The fine adjustment knob is used for precise focusing.
14. Plant cells contain chloroplasts while animal cells do not.
15. Ribosomes are responsible for producing energy in the cell.
16. The cytoplasm holds organelles in place inside the cell.
17. A unicellular organism consists of only one cell.
18. Multicellular organisms are made up of many cells.
19. The nucleus serves as the control center of the cell.
20. A microscope can be used to observe both plant and animal cells.
Part III – Identification: Write the correct answer on the blank.
21. The flat platform on the microscope where the slide is placed.
22. The knob used to move the stage up and down for general focusing.
23. The organelle responsible for producing energy for the cell.
24. The organelle that contains genetic material and controls cell
activities.
25. The jelly-like substance that fills the cell and holds organelles in place.
26. The green pigment in plants that captures energy from sunlight.
27. An organism made up of only one cell.
28. An organism made up of many cells.
29. The part of the microscope that regulates the amount of light
entering.
30. The scientist who first observed cells using a microscope in cork
tissue.
Stage Coarse adjustment knob
Mitochondrion Nucleus
Cytoplasm Unicellular organism
Chlorophyll Robert Hooke
Multicellular organism Diaphragm
Part IV – Short/Essay Questions: Answer briefly but clearly.
31. Why is it important to learn the proper handling and use of the
microscope in studying cells?
32. Compare plant and animal cells by stating one similarity and one
difference.
Key to Correction
1. B
2. C
3. A
4. A
5. B
6. B
7. B
8. A
9. B
10. B
11. T
12. F
13. T
14. T
15. F
16. T
17. T
18. T
19. T
20. T
21. Stage
22. Coarse adjustment knob
23. Mitochondrion
24. Nucleus
25. Cytoplasm
26. Chlorophyll
27. Unicellular organism
28. Multicellular organism
29. Diaphragm
30. Robert Hooke
31. Sample Answer: Proper handling ensures safety of equipment and accurate observation of cells.
32. Sample Answer: Both have a nucleus and cytoplasm, but plant cells have chloroplasts while
animal cells do not.
