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C8e_06_Test_Bank

C8e_06_Test_Bank - Biology 8e(Campbell Chapter 6 A Tour of...

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1 Biology, 8e (Campbell) Chapter 6 A Tour of the Cell Multiple-Choice Questions 1) When biologists wish to study the internal ultrastructure of cells, they most likely would use A) a light microscope. B) a scanning electron microscope. C) a transmission electronic microscope. D) A and B E) B and C Answer: C Topic: Concept 6.1 Skill: Knowledge/Comprehension 2) The advantage of light microscopy over electron microscopy is that B and C C Topic: Concept 6.1 Skill: Knowledge/Comprehension 3) A primary objective of cell fractionation is to
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2 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 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 B) chloroplasts, ribosomes, vacuoles C) nucleus, ribosomes, chloroplasts D) vacuoles, ribosomes, nucleus E) nucleus, mitochondria, ribosomes Answer: E Topic: Concept 6.1 Skill: Application/Analysis 6) Quantum dots are small (15—30 nm diameter), bright particles visible using light microscopy. If the dots can be specifically bound to individual proteins on a plasma membrane of a cell, which of the following correctly describes the advantage of using quantum dots in examining proteins?
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