Exam 4: A Tour of the Cell

A researcher disrupts cells and separates subcellular components using centrifugation.What is the primary factor that determines whether a specific cellular component remains in the liquid solution or ends up in the pellet?

Proteins that will be exported from the cell are synthesized by which of the following cellular components?

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

Which of the following structures play a key role in maintaining the structural integrity of animal tissues?

What technique would be most appropriate to use to observe the movements of condensed chromosomes during cell division?

Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?

If a treatment were available that would disrupt the nuclear lamina in living cells,what would you expect to be the most likely immediate consequence for the cell?

A 9 + 2 arrangement of microtubules,consisting of nine doublets of microtubules surrounding a pair of single microtubules,is associated with which of the following structures?

If plant cells are grown on media containing radioactively labeled thymine for one generation,where will radioactively labeled macromolecules be detected?

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?

Which structure-function pair is mismatched?

Prokaryotes are classified as belonging to two different domains.What are the domains?

Which cell would be best for studying lysosomes?

A biologist ground up some plant leaf cells and then centrifuged the mixture to fractionate the organelles.Organelles in one of the heavier fractions could produce ATP in the light,whereas organelles in the lighter fraction could produce ATP in the dark.The heavier and lighter fractions are most likely to contain,respectively,

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