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Campbell Biology

Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson

Chapter 6

A Tour of the Cell - all with Video Answers

Educators

Chapter Questions

01:53

Problem 1

Which structure is not part of the endomembrane system?
a. nuclear envelope
c. Golgi apparatus
b. chloroplast
d. plasma membrane

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Protim Das
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02:14

Problem 2

Which structure is common to plant and animal cells?
a. chloroplast
c. mitochondrion
b. central vacuole
d. centriole

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Protim Das
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02:28

Problem 3

Which of the following is present in a prokaryotic cell?
a. mitochondrion
c. nuclear envelope
b. ribosome
d. chloroplast

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Protim Das
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04:28

Problem 4

Which structure-function pair is mismatched?
a. microtubule; muscle contraction
b. ribosome; protein synthesis
c. Golgi; protein trafficking
d. nucleolus; production of ribosomal subunits

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Dominador Tan
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01:31

Problem 5

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
a. mitochondria.
c. peroxisomes.
b. ribosomes.
d. Iysosomes.

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Protim Das
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02:00

Problem 6

What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?
a. Golgi $\rightarrow \mathrm{ER} \rightarrow$ lysosome
b. nucleus $\rightarrow \mathrm{ER} \rightarrow$ Golgi
c. $\mathrm{ER} \rightarrow$ Golgi $\rightarrow$ vesicles that fuse with plasma membrane
d. $\mathrm{ER} \rightarrow$ lysosomes $\rightarrow$ vesicles that fuse with plasma membrane

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02:27

Problem 7

Which cell would be best for studying lysosomes?
a. muscle cell
b. nerve cell
c. phagocytic white blood cell
d. bacterial cell

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03:36

Problem 8

From memory, draw two eukaryotic cells, labeling the structures listed here and showing any physical connections between the internal structures of each cell: nucleus, rough ER, smooth ER, mitochondrion, centrosome, chloroplast, vacuole, lysosome, microtubule, cell wall, ECM, microfilament, Golgi apparatus, intermediate filament, plasmal membrane, peroxisome, ribosome, nucleolus, nuclear pore, vesicle, flagellum, microvilli, plasmodesma.

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02:24

Problem 9

Which aspects of cell structure best reveal evolutionary unity? What are some examples of specialized modifications?

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01:48

Problem 10

Imagine protein $X$, destined to span the plasma membrane. Assume that the mRNA carrying the genetic message for protein $X$ has already been translated by ribosomes in a cell culture. If you fractionate the cells (see Figure 6.4 ), in which fraction would you find protein X? Explain by describing its transit through the cell.

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Protim Das
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02:22

Problem 11

Considering some of the characteristics that define life and drawing on your knowledge of cellular structures and functions, write a short essay $(100-150$ words) that discusses this statement: Life is an emergent property that appears at the level of the cell. (See Concept 1.1.)

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Protim Das
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06:23

Problem 12

The cells in the SEM are epithelial cells from the small intestine. Discuss how aspects of their structure contribute to their specialized functions of nutrient absorption and as a barrier between the intestinal contents and the blood supply on the other side of the sheet of epithelial cells.

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Bcrypt_Sha256$$2B$12$Robtujr9L3Df26Glt66Ss.Uw2Kt8Wdwq0Nfds2Ggy2Aewx5U6Voiw Bcrypt_Sha256$$2B$12$Robtujr9L3Df26Glt66Ss.Dgzqci3Fjqnd6Vr5Zzgo/E/U5G11F5C
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