TEST BANK FOR ESSENTIALS OF PATHOPHYSIOLOGY: CONCEPTS OF ALTERED HEALTH STATES, 2 PAP/CDR EDITION BY CAROL MATTSON PORTH

1. The nucleus _________that is essential for function and survival of the cell. A) is the site of protein synthesis C) transforms cellular energy B) contains the genetic code D) initiates aerobic metabolism Ans:††B Difficulty:††Moderate 2. Although energy is not made in mitochondria, they are known as the ìpower plantî of the cell because they A) contain RNA for protein synthesis B) utilize glycolysis for oxidative energy C) extract energy from organic compounds D) store calcium bonds for muscle contractions Ans:††C Difficulty:††Moderate 3. Although the basic structure of the cell plasma membrane is provided by a lipid bilayer, most of the specific membrane functions are carried out by A) bound and transmembrane proteins B) complex long carbohydrate chains C) surface antigens and hormone receptors D) a gating system of selective ion channels Ans:††A Difficulty:††Moderate 4. To effectively relay signals, cell to cell communication utilizes chemical messenger systems that A) displace surface receptor proteins B) accumulate within cell gap junctions C) bind to contractile microfilaments D) release secretions into extracellular fluid Ans:††D Difficulty:††Easy 5. Aerobic metabolism, also known as oxidative metabolism, provides energy by A) removing the phosphate bonds from ATP B) combining hydrogen and oxygen to form water C) activating pyruvate stored in the cytoplasm D) breaking down glucose to form lactic acid Ans:††B Difficulty:††Moderate