Download Life Science -Unit 2Test C. Reid Select the best answer choice for

Life Science -Unit 2Test
C. Reid
Select the best answer choice for each question. (3 pts each)
1. Use the diagram to answer the question. (SI_19)
A student wrote this description of a cell after
looking at it under a microscope. Which type
of cell was the student most likely describing?
A.
B.
C.
D.
fungus cell
plant cell
animal cell
bacterial cell
2. . Use the diagram to answer the question.
The one-celled organisms above are often found in freshwater ponds. What is one characteristic they all
have in common? (LS_2)
A. pseudopodia
B. cilia
C. flagellum D. nucleus
3. Use the chart to answer the question.
The chart lists the functions of four different cell structures. Which name is the best match for structure
number 4? (LS_4)
A. nucleus
B. ribosome
C. cell wall
D. vacuole
4. In plant cells, what is the function of chloroplasts? (LS_4)
A. enable plant cells to produce their own food
B. act as the cell’s control center
C. allow materials to move into and out of the cell
D. support and protect the cell
5. Cells from which of the following organisms would be expected to contain cell walls?
A. cricket
C. fish
B. water lily
D. puppy
(LS_2)
Grade 7 Science-Unit 2: Post-assessment
6. A student in a science laboratory makes a
chart to document the structures seen in
three different cell samples. The student
hypothesizes that Sample 3 is a plant cell.
What structure in Sample 3 supports this
hypothesis? (LS_2)
A.
B.
C.
D.
nucleus
mitochondria
cell wall
vacuole
7. What is the role of cytoplasm in a living cell? (LS_4)
A. fight infection
B. digest proteins
C. pass on genetic information
D. surround organelles
8. Use the diagram to answer the question.
Euglena are one-celled organisms containing
chlorophyll. A culture of Euglena is placed
into a beaker in a dark room with a flashlight
shining on one side, as shown in the diagram.
The Euglena gather on the lighted side of the beaker.
What is an inference that can be made about Euglena from this experiment? (SI_21)
A.
B.
C.
D.
Euglena show a positive response to darkness.
Euglena show a positive response to light.
Euglena show a negative response to light.
Euglena do not react to light.
9. Use the diagram to answer the question.
What is the function of the plant cell
organelle shown in the enlargement? (LS_4)
A. provide support for the cell
B. direct all the cell’s activities
C. use energy from sunlight to make sugar
D. regulate substances that enter and exit the cell
10. . A jelly-like sample of material from a previously unexplored marine
environment is thought to be living or to be composed of recently living
material. Which of the following would most clearly confirm that the
material is living or was once living? (LS_4)
A.
B.
C.
D.
the presence of cells in the sample
the presence of hydrogen in the sample
diffusion of material out of the sample
movement of the sample
Grade 7 Science-Unit 2: Post-assessment
11. Which of the following represents the correct levels of organization from simple to complex? (LS_2)
A.
B.
C.
D.
Organelle > Cell > Tissue > Organ System > Organ
Cell > Organelle > Tissue > Organ > Organ System
Organelle > Cell > Tissue > Organ > Organ System
Organelle >Cell > Organ > Organ System > Tissue
12. Use the diagram to answer the question.
The diagram is a model of an animal cell. Which organelle
is the site where proteins are produced? (LS_2)
A.
B.
C.
D.
organelle 1
organelle 2
organelle 3
organelle 4
13. Which cellular organelle is responsible for packaging the proteins that the cell produces? (LS_4)
A.
B.
C.
D.
Golgi apparatus
ribosome
cell membrane
lysosome
14. Use the diagram to answer the question.
Which organelles are found in plant cells that
are not found in animal cells? (LS_4)
A.
B.
C.
D.
___?
__
___?
__
___?
__
Golgi apparatus, chloroplast, lysosome
chloroplast, central vacuole, cell wall
chloroplast, ribosome, cell wall
mitochondria, chloroplast, ribosome
15. What is the result of mitosis? (LS_15)
A. one daughter cell with double the DNA of the parent cell
B. two daughter cells with double the DNA of the parent cell
C. one daughter cell with half the DNA of the parent cell
D. two daughter cells with the same DNA as the parent cell
16. Which of the following types of cells have cell walls? (LS_2)
A. plant cells
B. muscle cells
C. blood cells
D. animal cells
17. Communication with other scientists about their research led Schleiden to conclude that (SI_29)
A. all plants are made of cells
C. all cells look like tiny rooms
B. all cells are produced from other cells
D. all plants are living things
18. Which tool could help you see a plant cell? (SI_6,29)
A. a filter
C. a microwave
B. a microscope
D. an electromagnet
Grade 7 Science-Unit 2: Post-assessment
19. The total number of cells in an organism increases as a result of which process? (LS_15)
A. respiration
C. cell division
B. photosynthesis
D. fermentation
20. The correct order for the parts of mitosis are: (LS_15)
A. prophase, interphase, metaphase, anaphase
B. telophase, anaphase, metaphase, prophase
C. interphase, prophase, metaphase, telophase
D. prophase, metaphase, anaphase, telophase
Match each term with its definition.(2 pts each) (LS_15)
21. _____ interphase
A. regular sequence of growth and division that cells undergo
22. _____ mitosis
B. first stage of the cell cycle
23. _____ cell cycle
C. process in which DNA is copied
24. _____ cytokinesis
D. stage of the cell cycle during which the cell’s nucleus divides
25. _____ replication
E. doubled rod of condensed chromatin
26. _____ chromosome
F. final stage of the cell cycle
Fill in the blank to complete each statement. (2 pts each blank)
27. What are the 3 parts to the cell theory?
___________________________________________
___________________________________________
___________________________________________
28. The ability to distinguish between two nearby objects is called ________________________.
29. The three main phases of cell division are: __________________________,
_____________________ and ________________________________________
30. The four stages of mitosis are:
_________________________, _______________________
_________________________ and _____________________
31. RACE the following question using at least 3 sentences. 5 pts
Use the diagram and read the text to answer the question.
In 1665, Robert Hooke used his microscope to observe
a thin slice of cork and presented a drawing similar to
the one shown. Hooke called the empty spaces cells,
which means “small rooms.” His work and the work of
many other scientists who followed him led to the development
of the cell theory. Explain the impact the microscope has had
on understanding cells. (SI_29)
Grade 7 Science-Unit 2: Post-assessment