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- 1. Multiple Choice
All cells have three things in common: ____
Cytoplasm, DNA, and organelles with membranes
A plasma membrane, DNA, and a nucleus
Cytoplasm, DNA, and a plasma membrane
A cell wall, cytoplasm, and DNA
- 2. Multiple Choice
Which of the following is not a principle of the cell theory?
Every cell arises from another cell
A cell is alive even as part of a multicelled body
Eukaryotic cells have a nucleus, and prokaryotic cells do not
The cell is the smallest unit of life
- 3. Multiple Choice
The surface-to-volume ratio _____
does not apply to prokaryotic cells
contrains cell size
is part of the cell theory
- 4. Multiple Choice
A plasma membrane _____.
controls exchange between the cell and the external environment
is a mesh of intermediate filaments
is a type of extracellular matrix
- 5. Multiple Choice
True or false? Ribosomes are only found in eukaryotes
true
false
- 6. Multiple Choice
Unlike eukaryotic cells, prokaryotic cells _____.
have no nucleus
have RNA but not DNA
have no ribosomes
no nucleus and no ribosomes
- 7. Multiple Choice
What controls the passage of molecules into and out of the nucleus?
endoplasmic reticulum, an extension of the nucleus
nuclear pores, which consist of membrane proteins
nucleoli, in which ribosome subunits are made
dynamically assembled mircotubules
tight junctions
- 8. Multiple Choice
The main function of the endomembrane system is:
building and modifying proteins and lipids
isolating DNA from toxic substances
secreting extracellular matrix onto the cell surface
producing ATP by aerobic respiration
- 9. Multiple Choice
Enzymes contained in _____ break down worn out organelles, bacteria, and other particles
lysosomes
amyloplasts
endoplastic reticulum
peroxisomes
- 10. Multiple Choice
Put the following structures in order according to the pathway of a secreted protein:
- plasma membrane
- golgi bodies
- endoplasmic reticulum
- post-golgi vesicles
3, 2, 4, 1
1, 2, 3, 4
4, 3, 2, 1
2, 3, 4, 1
- 11. Multiple Choice
Which of the following statements is false?
the plasma membrane is the outermost component of all cells
the cell is the basic unit of life
all living cells contain cytoplasm
some eukaryotes are single-celled and others are multicelled
- 12. Multiple Choice
Cell junctions called ______ connect the cytoplasm of adjacent plant cells
plasmodesmata
adhering junctions
tight junctions
adhesion proteins
gap junctions
- 13. Multiple Choice
Which of the following organelles contains no DNA?
nucleus
golgi body
mitochondrion
chloroplast
- 14. Multiple Choice
No animal cell has a ____
plasma membrane
flagellum
lysosome
cell wall
- 15. Multiple Choice
What is the function of the mitochondria?
protein synthesis
breaks down debris
stores starch
ATP production
- 16. Multiple Choice
What is the function of the chloroplast
protein synthesis
breaks down debris
stores starch
photosynthesis
- 17. Multiple Choice
What is the function of the cell junction
protein synthesis
breaks down debris
stores starch
connection
- 18. Multiple Choice
What is the function of the smooth ER
protein synthesis
breaks down debris
finishes proteins and lipids
assembles phospholipids
- 19. Multiple Choice
What is the function of the golgi body
protein synthesis
breaks down debris
finishes proteins and lipids
assembles phospholipids
movement
- 20. Multiple Choice
What is the function of the rough ER
protein synthesis
breaks down debris
finishes proteins and lipids
assembles phospholipids
movement
- 21. Multiple Choice
What is the function of the peroxisome
breaks down toxins
breaks down debris
finishes proteins and lipids
assembles phospholipids
movement
- 22. Multiple Choice
What is the function of the plastid
breaks down toxins
breaks down debris
stores starch
assembles phospholipids
movement
- 23. Multiple Choice
What is the function of the flagellum
breaks down toxins
breaks down debris
stores starch
assembles phospholipids
movement
- 24. Multiple Choice
What is the function of the lysosome
breaks down toxins
breaks down debris
stores starch
assembles phospholipids
movement
- 25. Multiple Choice
Calculate the total magnification of a 40X objective lens and 10X ocular lens on a light microscope.
10x
40x
50x
400x
- 26. Multiple Choice
Surface area-to-volume is the most important factor for why cells are microscopically small. Which of these surface area-to-volume ratios for four hypothetical cells would enable the cell to exchange materials most effectively via its membrane in a given amount of time?
10:1
5:1
1:1
1:10
- 27. Multiple Choice
Which structure is common to all living cells, both prokaryotic and eukaryotic?
ribosome
cell wall
flagellum
plastid
- 28. Multiple Choice
Which statement is false about prokaryotes compared to eukaryotes?
Prokaryotes are more metabolically diverse than eukaryotes
Prokaryotes tend to be large and mulitcellular while eukarotes tend to be much smaller and usually unicellular
unlike prokaryotes, eukaryotes have various membane bound organelles
eukaryotic DNA is linear and stored typically in the nucleus while prokaryotic DNA occurs in small loops
- 29. Multiple Choice
A small vesicle containing digestive enzymes and having an acidic internal pH is a description that best fits which eukaryotic organelle?
lysosome
mitochondrion
golgi body
smooth endoplasmic reticulum
- 30. Multiple Choice
What is one feature about the nuclear envelope that is not found within the plasma membrane
it i made primarily of phospholipids
it is semipermeable
it has a double bilayer
it has specialized proteins embedded in the membrane
- 31. Multiple Choice
The specialized region within the nucleus responsible for producing subunits of ribosomal RNA is known as the ____.
chromatin
plastid
nucleolus
nucleoplasm
- 32. Multiple Choice
Consider a cell that will make a protein for export out of the cell using the endomembrane system. Which series below represents the most likely flow of organelles and structures involved in this process?
Nucleus --> SER --> Golgi body --> ribosome --> RER
Nucleus --> RER --> Ribosome --> SER --> Golgi
Nucleus --> golgi body--> ribosome --> RER --> SER
Nucleus --> ribosome --> RER --> Golgi body --> vesicle --> cell membrane
- 33. Multiple Choice
You test a sample of microscopic organisms isolated from a nearby pond for the presence of specific subcellular structures. The presence of which one of the following would clearly indicate that you have isolated small animals from your pond?
mitochondrion
chloroplast
centriole
cell wall
- 34. Multiple Choice
Which statement is false about mitochondria and chloroplasts?
They can live independently outside of their "host" cell
They have their own ribosomes and DNA
They have double bilayer membranes
They are known to have evolved by endosymbiosis
- 35. Multiple Choice
In a sample from a different pond, you observe the presence of the organelle shown in the image above. You know that this sample is not which of the following organisms?
a freshwater algal protist
a fungus
a green land plant
an archaean bacteria
- 36. Multiple Choice
The type of intracellular fiber with a hollow construction able to be rapidly assembled or disassembled and associated with spindle fibers and centrioles is a ____.
microfilament
microtubule
intermediate filament
motor protein
- 37. Multiple Choice
____ are cellular junctions found between neighboring plant cells where they are essentially open channels through which material may easily pass.
gap junction
plasmodesmata
desmosomes
adhering junctions
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