Understanding Pathophysiology preview exam with 100% correct solutions

Understanding Pathophysiology preview exam with 100% correct solutions 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 - b. 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 - d. 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 - d. Which of the following can remove proteins attached to the cell's bilayer by dissolving the layer itself? a. Peripheral membrane proteins b. Integral membrane proteins c. Glycoproteins d. Cell adhesion molecules - b. Which of the following can bind to plasma membrane receptors? a. Oxygen b. Ribosomes c. Amphipathic lipids d. Ligands - d. A nurse is reviewing a report from a patient with metastatic cancer. What alternation in the extracellular matrix would support the diagnosis of metastatic cancer? a. Decreased fibronectin b. Increased collagen c. Decreased elastin d. Increased glycoproteins - a. What type of connection allows for cellular communication? a. Belt desmosome b. Gap junction c. Spot desmosome d. Tight junction - b. Pancreatic beta cells secrete insulin, which inhibits secretion of glucagon from neighbouring alpha cells. This action is an example of which of the following signalling types? a. Paracrine b. Autocrine c. Neurohormonal d. Hormonal - a. in cellular metabolism, each enzyme has a high affinity for a: a. solute. b. substrate. c. receptor. d. ribosome. - b. An athlete runs a marathon, after which his muscles feel fatigued and unable to contract. The athlete asks the nurse why this happened. The nurse's response is based on the knowledge that the problem is result of a deficiency of: a. GTP b. AMP c. ATP d. GMP - c. Which phase of catabolism produces the most ATP? a. Digestion b. Glycolysis c. Oxidation d. Citric acid cycle - d. A nurse is teaching the staff about the phases of cellular catabolism. Which phases should the nurse include? a. Digestion, glycolysis, oxidation, and the citric acid cycle b. Diffusion, osmosis, and mediated transport c. S phase, G phase, and M phase d. Metabolic absorption, respiration, and excretion - a.