Test Bank For Understanding Pathophysiology, Canadian Edition, 2nd Edition by Kelly Power-Kean, RN, BN, MHS, NP, Stephanie Zettel, MN, BN, B.Sc (Honours), Mohamed Toufic El-Hussein, RN, BSN, MSN, PHD, Sue E. Huether, MS, PhD and Kathryn L. Chapter 1-42
Chapter 01: Cellular Biology MULTIPLE CHOICE 1. A student is observing a cell under the microscope. The student notices it to have supercoiled
DNA with histones. What else would the student be expected to observe? 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 DNA within its nucleus; thus, the nucleus should be observed. A prokaryotic cell contains a single circular chromosome and lacks organelles. DIF: Cognitive Level: Remember
REF: Nucleus
TOP: Physiological Integrity
2. A nurse is instructing the staff about cellular functions. Which cellular function is the nurse
describing when an isolated cell absorbs oxygen and uses it to transform nutrients to energy? a. Metabolic absorption b. Communication c. Secretion d. Respiration ANS: D
The cell’s ability to produce energy is respiration. Communication involves maintenance of a steady dynamic state, while metabolic absorption provides cellular nutrition, and secretion allows for the delivery or release of new substances. DIF: Cognitive Level: Remember TOP: Physiological Integrity
REF: Cellular Functions
3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of
the genetic information be contained? a. Peroxisomes b. Ribosomes c. The nucleolus d. Suspended in nucleoplasm ANS: D