A.P._Chapter_6_Test - A.P. Chapter 6 Test Multiple Choice...

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A.P. Chapter 6 Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. When biologists wish to study the internal ultrastructure of cells, they most likely would use a. a light microscope. d. A and C only b. a scanning electron microscope. e. A, B, and C c. a transmission electronic microscope. 2. The advantage of light microscopy over electron microscopy is that a. light microscopy provides for higher magnification than electron microscopy. b. light microscopy provides for higher resolving power than electron microscopy. c. light microscopy allows one to view dynamic processes in living cells. d. both A and B e. both B and C 3. A primary objective of cell fractionation is to a. view the structure of cell membranes. b. identify the enzymes outside the organelles. c. determine the size of various organelles. d. separate the major organelles so their particular functions can be determined. e. crack the cell wall so the cytoplasmic contents can be released. 4. 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 a. the relative solubility of the component. b. the size and weight of the component. c. the percentage of carbohydrates in the component. d. the number of enzymes in the fraction. e. the presence or absence of lipids in the component. 5. Which of the following correctly lists the order in which cellular components will be found in the pellet when homogenized cells are treated with increasingly rapid spins in a centrifuge? a. ribosomes, nucleus, mitochondria d. vacuoles, ribosomes, nucleus b. chloroplasts, ribosomes, vacuoles e. nucleus, mitochondria, ribosomes c. nucleus, ribosomes, chloroplasts 6. Which of the following are prokaryotic cells? a. plants b. fungi c. bacteria d. animals e. 7. All of the following are part of a prokaryotic cell except a. DNA. d. ribosomes. b. a cell wall. e. an endoplasmic reticulum. c. a plasma membrane. 8. 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 a. plant cells are capable of having a much higher surface-to-volume ratio than animal cells. b. plant cells have a much more highly convoluted (folded) plasma membrane than animal cells. c. plant cells contain a large vacuole that reduces the volume of the cytoplasm. d. animal cells are more spherical, while plant cells are elongated. e. the basic functions of plant cells are very different from those of animal cells.
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For the following questions, use the lettered answers to match the structure to its proper cell type. Choose the most inclusive category. Each answer may be used once, more than once, or not at all. A.
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This note was uploaded on 12/01/2009 for the course BIO 071265836 taught by Professor Solana during the Spring '09 term at Air Force Institute of Technology, Ohio.

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A.P._Chapter_6_Test - A.P. Chapter 6 Test Multiple Choice...

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