Exam 4: A Tour of the Cell

Tay-Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large, complex, undigested lipids. Which cellular organelle must be involved in this condition?

Which structure is common to plant and animal cells?

All of the following serve an important role in determining or maintaining the structure of plant cells. Which of the following are distinct from the others in their composition?

4.2 Art Question Table 4.1 -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,

ECM proteins are made by ribosomes in which part of a eukaryotic cell?

In a plant cell, DNA may be found

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

The chemical reactions involved in respiration are virtually identical between prokaryotic and eukaryotic cells. In eukaryotic cells, ATP is synthesized primarily on the inner membrane of the mitochondria. In light of the endosymbiont theory for the evolutionary origin of mitochondria, where is most ATP synthesis likely to occur in prokaryotic cells?

In a liver cell detoxifying alcohol and some other poisons, the enzymes of the peroxisome remove hydrogen from these molecules and

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

What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?

Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen?

Which cell would be best for studying lysosomes?

Signals from the ECM to the cytoskeleton may be transmitted by

Which of the following contain the 9 + 2 arrangement of microtubules, consisting of nine doublets of microtubules surrounding a pair of single microtubules?

Centrioles, cilia, flagella, and basal bodies have remarkably similar structural elements and arrangements. Which of the following hypotheses is most plausible in light of such structural similarities?

The advantage of light microscopy over electron microscopy is that

In the fractionation of homogenized cells using centrifugation, the primary factor that determines whether a specific cellular component ends up in the supernatant or the pellet is

Which organelle or structure is absent in plant cells?

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