Ch 6 tour of a cell practice test and self quiz
Basal bodies are most closely associated with which of the following cell components?
cilia
Where would you expect to find proteins involved with movement of structures within a cell?
cytoskeleton
A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum and eventually found in a cell's plasma membrane. The protein in the plasma membrane was actually slightly different from the protein made in the ER. The protein was probably altered in the
Golgi apparatus
Which of the following is the simplest collection of matter that can live?
cell
Which structure is not part of the endomembrane system?
chloroplast
Consider a protein that is made in the rough endoplasmic reticulum. You observe that when the synthesis of the protein is completed, the protein is located in the ER membrane. Where else in the cell might this protein be found?
embedded in the plasma membrane, functioning in the transport of molecules into the cell
Bacterial cells are prokaryotic. Unlike a typical eukaryotic cell, they
have no membrane-bounded organelles in their cytoplasm
Which of the following is a possible reason for grouping the peroxisomes with chloroplasts and mitochondria?
All of these organelles appear to increase in number by dividing.
Which of the following statements correctly describes a common characteristic of a plant cell wall and an animal cell extracellular matrix?
Both are permeable to water and small solutes.
Which of the following statements is true about cell fractionation?
Cell fractionation separates cells into their component parts.
Which of the following statements about chloroplasts and mitochondria is true?
Chloroplasts and mitochondria synthesize some of their own proteins.
Which of the following is FALSE in respect to eukaryotic chromosomes?
Chromosomes appear only as a cell is about to divide.
What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?
ER → Golgi → vesicles that fuse with plasma membrane
In terms of cellular function, what is the most important difference between prokaryotic and eukaryotic cells?
Eukaryotic cells are compartmentalized, which allows for specialization.
Which of the following sequences represents the order in which a protein made in the rough endoplasmic reticulum might move through the endomembrane system?
Golgi apparatus → lysosome
Which of the following is FALSE?
Mitochondria contain ribosomes in the intermembrane space.
What is the functional connection between the nucleolus, nuclear pores, and the nuclear membrane?
Subunits of ribosomes are assembled in the nucleolus and pass through the nuclear membrane via the nuclear pores.
Your intestine is lined with individual cells. No fluids leak between these cells from the gut into your body. Why?
The intestinal cells are bound together by tight junctions.
A particular cell has a nucleus and chloroplasts in addition to the fundamental structures required by all cells. Based on this information, this cell could be
a photosynthetic protist cell or a plant cell
Consider two cells with the same volume but with very different surface areas due to differences in their shapes. The cell with the larger surface area is likely to
be involved in the rapid uptake of compounds from the cell's environment
Which of the following is/are most likely to be involved in the process of producing proteins for a chloroplast or mitochondrion?
free cytoplasmic ribosomes
Which of the following organelles is UNLIKELY to show enhanced abundance in pancreatic cells that secrete large amounts of digestive enzymes?
free cytoplasmic ribosomes
Chloroplasts and mitochondria are thought to be of prokaryotic origin. One piece of evidence that supports this hypothesis is that these organelles contain prokaryotic-like ribosomes. These ribosomes are probably most similar to ribosomes found
in bacterial cells
A protein that ultimately functions in the plasma membrane of a cell is most likely to have been synthesized
in the rough endoplasmic reticulum
A researcher wants to film the movement of chromosomes during cell division. Which type of microscope should she choose and why is it the best choice?
light microscope, because the specimen is alive
Which of the following categories best describes the function of the rough endoplasmic reticulum?
manufacturing
Which structure-function pair is mismatched?
microtubule; muscle contraction
Which of the following structures is found in eukaryotic but NOT prokaryotic cells?
mitochondria
Cyanide binds to at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most of the cyanide will be found within the
mitochondria.
Which of the following five membranes is most likely to have a lipid composition that is distinct from those of the other four?
mitochondrial outer membrane
Which structure is common to plant and animal cells?
mitochondrion
Cilia and flagella move due to the interaction of the cytoskeleton with which of the following
motor proteins
Which type of cell is most likely to have the largest number of mitochondria?
muscle cells in the legs of a marathon runner
Which cell would be best for studying lysosomes?
phagocytic white blood cell
Dye injected into a plant cell might be able to enter an adjacent cell through
plasmodesmata
Which of the following is present in a prokaryotic cell?
ribosome
Which of the following groups is primarily involved in synthesizing molecules needed by the cell?
ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum
Which of the following organelles might be found inside other organelles?
ribosomes
Which of the following LACK membranes as part of their structure?
ribosomes peroxisomes
Which of the following features do prokaryotes and eukaryotes have in common?
ribosomes, plasma membrane, and cytoplasm
You would expect a cell with an extensive Golgi apparatus to
secrete large amounts of protein
In which of the following sites might protein synthesis occur in a typical eukaryotic cell?
the cytoplasm, the rough endoplasmic reticulum, and the mitochondria
A dish of animal cells was grown in the presence of radioactive phosphorous. The phosphorous largely ended up in nucleotides inside the actively growing animal cells. In which cellular structure or structures would you predict the majority of the radioactive phosphorous to accumulate?
the nucleus
A substance moving from outside the cell into the cytoplasm must pass through
the plasma membrane
