Cell Theory Test
Multiple Choice
Choose the ONE answer that best answers the question.
1.
A.
B.
C.
D.
Which of the following is NOT a part of the cell theory?
Cells are the basic units of all living things.
All living things are made of one or more cells.
Cells are too small to see without a microscope.
All cells come from preexisting cells.
2.
A.
B.
C.
D.
Which of the following is NOT needed for photosynthesis?
oxygen
sunlight
water
carbon dioxide
3.
A.
B.
C.
D.
Cells without a nucleus are called
eukaryotes
prokaryotes
organelles
multi-cellular
4.
A.
B.
C.
D.
Organisms made up of many cells are
organelles
prokaryotes
multicellular
unicellular
5.
A.
B.
C.
D.
Organisms made up of only one cell are
multicellular
unicellular
organelles
homeostasis
6.
A.
B.
C.
D.
Organisms that have cells with organelles and a nucleus are
prokaryotes
eukaryotes
viruses
bacteria
7.
A.
B.
C.
D.
What part of the plant cell is where photosynthesis happens?
cell wall
chloroplast
nucleus
mitochondria
8. Students in a science classroom are asked to research scientific theories and write a report on one
theory. Which introductory sentence provides an accurate description of a theory?
A. A scientific theory does not change.
B. A hypothesis will usually become a theory.
C. A scientific theory is less important than a scientific law.
D. A scientific theory is based on well supported observations of nature.
9.
A.
B.
C.
D.
A unicellular organism that does NOT have a nucleus and organelles is
prokaryote
eukaryote
animal cell
plant cell
10. The cell theory was developed over a period of 200 years and resulted from combining the work of
multiple scientists. What makes scientific knowledge durable or long-lasting?
A. It will always be expressed under the same conditions.
B. It is well supported but can change when new evidence arises.
C. It can be expressed as a statement or as a mathematical equation.
D. It is something familiar that helps scientists understand anything not familiar.
11. Nino uses a microscope to observe an onion cell, human skin cell, and bacteria cell. Which part of
the cell theory can be applied to all of these organisms?
A. The cells of the organisms are identical to each other.
B. The cells of the organisms undergo photosynthesis.
C. The organisms are made of one or more cells.
D. The organisms have cells that lack a nucleus.
12. In addition to sunlight, which of the following do plants need to carry out photosynthesis?
A. soil
B. oxygen
C. water
D. glucose
13. What do plants produce as a result of photosynthesis?
A. carbon dioxide and sugar
B. oxygen and carbon dioxide
C. sugar and water
D. oxygen and sugar
14. Bacteria are examples of ____________________.
A. prokaryotes
B. eukaryotes
15. Fungi are examples of ____________________.
A. prokaryotes
B. eukaryotes
Matching
Match the scientists to their contribution to the cell theory.
_____ 16. Looked at cork under a microscope and named the structures cells
A. Hooke
_____ 17. Determined that all animals are made of cells.
B. Virchow
_____ 18. Determined that all cells come from preexisting cells
C. Schwann
_____ 19. Determined that all plants are made of cells
D. Schleiden
_____ 20. Discovered bacteria
E. Leeuwenhoek