Exam__15361 - BIOL 1361 EXAM I Version 1 Name Date 1 All of...

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BIOL 1361 EXAM I Version 1 FALL ‘05 Page 1 Name: __________________________ Date: _____________ 1. All of the following would be found in a prokaryotic cell except: A) cytoplasm B) ribosomes C) plasma membrane D) DNA E) nuclear pores 2. What is the difference between “free” and “attached” ribosomes? A) Free ribosomes are in the cytoplasm, whereas attached ribosomes are anchored to the endoplasmic reticulum. B) Free ribosomes produce proteins in the cytosol, whereas attached ribosomes produce proteins that are inserted into the ER. C) Free ribosomes produce proteins that are exported from the cell, whereas attached ribosomes make proteins for mitochondria and chloroplasts. D) Both a and b E) Both a and c 3. What distinguishes living organisms from nonliving matter? A) Only living organisms are characterized by the processes of metabolism, reproduction, and evolution. B) Only living organisms are affected by changes in their environment. C) Only living organisms are composed of molecules. D) Living organisms do not obey physical and chemical laws, whereas nonliving matter does. E) All the above distinguish living organisms from nonliving matter 4. Which characteristic of water contributes to the relatively constant temperatures of the oceans and thus allows for a generally temperate climate on Earth? A) Water ionizes only slightly. B) It takes a small amount of heat energy to raise the temperature of water. C) Water can contain large amounts of salt. D) Water has the ability to ionize readily. E) It takes a large amount of heat energy to raise the temperature of water. 5. Choose the pair that is mismatched : A) metabolism - heterotrophic or autotrophic B) multicellular - prokaryote C) evolutionary tree - relationships between organisms D) photosynthesis - oxygen formation E) genus - species Figure 1. Use the figure below, which represents a portion of a eukaryotic cell, to answer the corresponding questions. Box B Box A
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BIOL 1361 EXAM I Version 1 FALL ‘05 Page 2 6. The cellular structure indicated by “Box A” in Figure 1 is responsible for: A) synthesis of proteins destined for export to: the exterior of the cell, other organelles, or the plasma membrane. B) synthesis of cytosolic proteins. C) digestion of unused organelles. D) replication. E) None of the above. 7. The cellular structure indicated by “Box B” in Figure 1 is responsible for: A) synthesis of lipids and steroids. B) de-toxifying harmful chemicals. C) protein synthesis. D) a, b, and c. E) Both a and b. 8. The best evidence that all living cells have a common origin is provided by A) the cell theory, which states that the cell is the basic unit of life. B) the fact that all new cells come from previously existing cells. C)
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Exam__15361 - BIOL 1361 EXAM I Version 1 Name Date 1 All of...

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