Science NLN PAX Study Guide with Questions and Answers

B cells are responsible for antibody production Which statement about white blood cells is true? Mouth, stomach, and small intestine Which locations in the digestive system are sites of chemical digestion? Synthesizing calcitriol and secreting erythropoietin, regulating the concentrations of sodium, potassium, chloride, calcium, and other ions, reabsorbing or secreting hydrogen ions and bicarbonate, and detecting reductions in blood volume and pressure Which of the following are functions of the urinary system? Nuclei Which of the following structures is unique to eukaryotic cells? The lysosome What is the cell organelle used for digestion to recycle materials? 2.65g/cm^3 (Distance= mass/volume) A rock has a mass of 14.3 grams (g) and a volume of 5.4cm^3, what is its density? They do not have valves but veins do Why do arteries have valves? The right ventricle If the pressure in the pulmonary artery is increased above normal, which chamber of the heart will be affected first? It increases the pH of the chyme so as to prevent harm to the intestine What is the purpose of sodium bicarbonate when released into the lumen of the small intestine? A stimulus and response controlled by the spinal cord Which of the following describes a reflex arc? DNA polymerases synthesize DNA discontinuously in pieces called Okazaki fragments after initially attaching to RNA primers Describe the synthesis of the lagging strand of DNA Medial Using anatomical terms, what is the relationship of the sternum relative to the deltoid? Bone to bone Ligaments connect what? Coronal, sagittal, and transverse What are the three primary body planes? It helps cushion the heart against jarring motions Which of the following is NOT a major function of the respiratory system in humans? To regulate blood pressure and heart rate Which of the following is NOT a function of the forebrain? Germline mutations are usually inherited while somatic mutation will affect only the individual What is the major difference between somatic and germline mutations? Asthma A child complains of heavy breathing even when relaxing. They are an otherwise healthy child with no history of respiratory problems. What might be the issue? 2:9:10:4 Find the lowest coefficients that will balance the following combustion equation. __C2H10+__O2---__H2O+__CO2 To increase a reaction's rate by decreasing the activation energy What is the purpose of a catalyst? Special proteins called enzymes