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MULTIPLE CHOICE 1. A student is observing a cell under the microscope. It is observed to have supercoiledDNAwith histones. Which of the following would also be observed by the student? a. A single circular chromosome b. A nucleus c. Free-floating nuclear material d. No organelles ANS: B The cell described is a eukaryotic cell, so it has histones and a supercoiled DNAwithinitsnucleus; thus, the nucleus should be observed. A single circular chromosome calledaprokaryote contains free-floating nuclear material but has no organelles. REF: p. 2 2. A nurse is instructing the staff about cellular functions. Which cellular function is thenursedescribing when an isolated cell absorbs oxygen and uses it to transformnutrients toenergy?a. Metabolic absorption b. Communication c. Secretion d. Respiration ANS: D The cell’s ability to absorb oxygen is referred to as respiration while its communicationabilityinvolves maintenance of a steady dynamic state, metabolic absorption provides nutrition, andsecretion allows for the synthesizing of new substances. REF: p. 2 3. A eukaryotic cell is undergoing DNA replication. In which region of the cell wouldmost ofthe genetic information be contained? a. Mitochondria b. Ribosome c. Nucleolus d. Nucleus Cytoplasm ANS: C The region of the cell that contains genetic material, including a large amount of ribonucleicacid, most of the DNA, a
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