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Applied Pathophysiology A Conceptual Approach to the Mechanisms of Disease 3rd Edition Braun TEST BANK

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Applied Pathophysiology A Conceptual Approach to the Mechanisms of Disease 3rd Edition Braun Test Bank Chapter 1Introduction to Pathophysiology 1. The nucleus _________, which is essential for func ... tion and survival of the cell. A) is the site of protein synthesis B) contains the genetic code C) transforms cellular energy D) initiates aerobic metabolism 2. Although energy is not made in mitochondria, they are known as the power plants 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. 3. Although the basic structure of the cell plasma membrane is formed 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. 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. 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. 6. Exocytosis, the reverse of endocytosis, is important in _______ into the extracellular fluid. A) Engulfing and ingesting fluid and proteins for transport B) Killing, degrading, and dissolving harmful microorganisms C) Removing cellular debris and releasing synthesized substances D) Destruction of particles by lysosomal enzymes for secretion 7. The process responsible for generating and conducting membrane potentials is: A) diffusion of current-carrying ions. B) millivoltage of electrical potential. C) polarization of charged particles. D) ion channel neurotransmission [Show More]

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