Exam 4: A Tour of the Cell

The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that

Which structure is the site of the synthesis of proteins destined for export from the cell?

Why isn't the mitochondrion classified as part of the endomembrane system?

Cytochalasin D is a drug that prevents actin polymerization. A cell treated with cytochalasin D will still be able to

A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and mitochondria. It could be a cell from

Which structure-function pair is mismatched?

Which of the following is present in a prokaryotic cell?

Which of the following makes it necessary for animal cells, although they have no cell walls, to have intercellular junctions?

Table 4.1The differences among the three categories of cytoskeletal elements outlined in Table 4.1 suggest that each has a specialized role. Which of the following is a correct match between a cytoskeletal element and its function? (All three elements are involved in the maintenance of cell shape.)

Which of the following organelles is found exclusively in plant cells?

What types of proteins are synthesized somewhere other than the rough ER?

Vinblastine, a drug that inhibits microtubule polymerization, is used to treat some forms of cancer. Cancer cells given vinblastine would be unable to

Which of the following correctly describes the pathway taken by a protein destined for secretion from an animal cell?

When biologists wish to study the internal ultrastructure of cells, they can achieve the finest resolution by using a

Passive movement of fluids and bacteria from the interior of the small intestine through the space between cells of the intestinal wall can cause serious infection and medical complications. Defects in which of the following would be associated with such a condition?

Comparison of samples from the liver of an alcoholic with samples from the liver of a non-drinker when examined by transmission electron microscopy would likely reveal that

Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids?

A cell with an abundance of free ribosomes is most likely

In an animal cell, DNA may be found

Plasmodesmata in plant cells are most similar in function to which of the following structures in animal cells?