04_TestBank_TB

04_TestBank_TB - Biology: Concepts and Connections, 5e...

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Biology: Concepts and Connections, 5e (Campbell) Chapter 4: A Tour of the Cell 1) Art is important to biology because A) great art inspires scientists to work. B) biologists use art to illuminate their findings. C) most art includes a detailed study of an aspect of biology. D) many scientific advances began with the study of art. E) many biologists were artists first. Answer: B Topic: Introduction Skill: Conceptual Understanding 2) Resolving power is the A) ability of an optical instrument to show two close objects as separate. B) size of an image. C) ability of an optical instrument to magnify an image. D) ability of an optical instrument to estimate the size of an image. E) distance between the lenses of a microscope. Answer: A Topic: 4.1 Skill: Factual Recall 3) Light microscopes A) can generally magnify objects about 10,000 times without blurring. B) typically provide more resolution than an electron microscope. C) work by reflecting electrons off the surface of an object being studied. D) use light and glass lenses to magnify an image. E) All of the choices are correct. Answer: D Topic: 4.1 Skill: Factual Recall 4) Which one of the following statements is true about electron microscopes? A) Electron beams are focused to create a magnified image of an object. B) Scanning electron microscopes are used to study the details of internal cell structure. C) Electron microscopes use glass lenses to focus and magnify the image. D) Transmission electron microscopes are mainly used to study cell surfaces. E) Specimens must be sectioned to be viewed under a scanning electron microscope. Answer: A Topic: 4.1 Skill: Factual Recall 5) A scientist wants to magnify a pollen grain 8,000 times and examine the ridges and pores on its surface. Which one of the following instruments would be best? A) a transmission electron microscope B) a scanning electron microscope C) a transmission light microscope D) a scanning light microscope E) an inverted light microscope Answer: B Topic: 4.1 Skill: Application
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6) A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which one of the following instruments would be best, and why? A) a light microscope, because it allows observations of whole, live cells B) a transmission electron microscope, because it has high resolving power C) a transmission electron microscope, because it is capable of very high magnification D) a scanning electron microscope, because it can reveal structures on cell surfaces E) a scanning electron microscope, because it can be used to observe whole cells without slicing them Answer: A Topic: 4.1 Skill: Application 7) A scanning electron microscope is used to study __________, whereas a transmission electron microscope is used to study __________. A) live cells . . . dead cells
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04_TestBank_TB - Biology: Concepts and Connections, 5e...

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