BIOL-150: Topic 3 Study Quiz
Which of the following statements best describes one major difference between prokaryotic cells and eukaryotic cells?
Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.
Which of the following statements best describes the function of the nuclear pore complex found in eukaryotic cells?
It regulates the movement of proteins and RNAs into and out of the nucleus.
A cell with a predominance of rough endoplasmic reticulum is most likely involved in which of the following processes?
Producing large quantities of proteins for secretion
Which of the following statements best describes some aspect of protein secretion from prokaryotic cells?
Proteins secreted by prokaryotes are likely synthesized on ribosomes bound to the cytoplasmic surface of the plasma membrane.
Which of the following is present in a prokaryotic cell?
Ribosome
Which of the following is the most appropriate technique for observing the three-dimensional structure and organization of microvilli on an intestinal cell?
Scanning electron microscopy.
When H. V. Wilson exposed two species of differently pigmented sponges to a chemical that disrupted intercellular junctions, the cells of the sponges dissociated. Wilson then removed the chemical that caused dissociation and mixed the cells of the two species. He found that the sponges reassembled and that the cells from one species did not interact or form associations with the cells of the other species.Which of the following statements provides the most plausible explanation for the results of this experiment?
The molecules responsible for cell-cell adhesion (cell junctions) differed between the two species of sponge.
A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a plasma membrane, two flagella, and peroxisomes. Based on this information only, the organism is most likely to be ________.
a motile eukaryote
Which of the following pairs of organism groups consist solely of prokaryotic cells?
bacteria and Archaea
Certain animal cells normally have well-defined spherical nuclei when observed by light microscopy. Cells with a genetic defect have irregularly-shaped nuclei. Which of the following cytoskeletal elements is most likely affected by this genetic defect?
intermediate filaments
Which of the following statements describes a major advantage of light microscopy over electron microscopy?
light microscopy allows the visualization of dynamic processes in living cells
Disruption of nuclear pore complexes in a eukaryotic cell will most likely interfere with the transport of which of the following molecules out of the nucleus?
mRNA
Cyanide binds to at least one molecule involved in producing ATP. In a cell exposed to cyanide, most of the cyanide will be in ________.
mitochondria
Cyanide binds with at least one protein complex involved in producing ATP. If a cell is exposed to cyanide, most of the bound cyanide is likely to be localized within which of the following organelles?
mitochondria
Which structure is common to plant and animal cells?
mitochondrion
A particular cell contains the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondria. Based on this composition, it could be a cell from which of the following organisms?
nearly any eukaryotic organism
Which of the following structures form cytoplasmic channels that connect adjacent plant cells through the cell walls?
plasmodesmata
Which of the following structures are found in plant, animal, and bacterial cells?
ribosomes
Tay-Sachs disease is a human genetic disorder that results in cellular accumulation of very large, complex, undigested lipids. Which of the following organelles is most likely defective in Tay-Sachs disease?
the lysosome
Peroxisomes in liver cells detoxify alcohol by removing hydrogen atoms and combining them with which of the following molecules?
with oxygen molecules to generate hydrogen peroxide