Study%20Questions-Chapter-5-1

Study%20Questions-Chapter-5-1 - BIOL. 1305 Spring 2011...

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BIOL. 1305 – Spring 2011 (CRN# 22530) Study Questions Chapter 5: Cells: The Working Units of Life 1. The surface area-to-volume ratio of a cell a. can be increased by increasing the volume of the cell. b. can be decreased by decreasing the surface area. c. explains why cells are small. d. is of little significance to maintaining cell homeostasis. e. None of the above 2. A general function of all cellular membranes is to a. regulate which materials can cross the membrane. b. support the cell and determine its shape. c. produce energy for the cell. d. produce proteins for the cell. e. move the cell. 3. What is the major distinction between a prokaryotic and a eukaryotic cell? a. A prokaryotic cell does not have a nucleus, whereas a eukaryotic cell does. b. A prokaryotic cell does not have DNA, whereas a eukaryotic cell does. c. A prokaryotic cell is smaller than a eukaryotic cell. d. Prokaryotic cells have not prospered, whereas eukaryotic cells are evolutionary “successes.” e. A prokaryotic cell cannot obtain energy from its environment. 4. Members of the domains Bacteria and Archaea a. have nuclei. b. have chloroplasts. c. are multicellular. d. are prokaryotes. e. have flagella. 5. Which of the following is not a characteristic of a prokaryotic cell? a. A plasma membrane b. A nuclear envelope c. A nucleoid d. Ribosomes e. Enzymes 6. Biological membranes in a eukaryotic cell a. separate the cell from its environment. b. regulate what goes into and out of the cell. c. help maintain a constant internal environment. d. communicate with adjacent cells. e. All of the above 7. The role of organelles is to a. provide structural support for the cell. b. decrease the flow of materials into and out of the cell. c. increase the efficiency of cellular activities. d. provide a means of cellular reproduction. e. regulate the flow of traffic inside the cell.
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Study%20Questions-Chapter-5-1 - BIOL. 1305 Spring 2011...

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