Inhibition of which enzyme/enzymes would inhibit the conversion of arachidonic acid to leukotrienes?a. cyclooxygenaseb. lipoxygenasec. phospholipase A2
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Inhibition of which enzyme/enzymes would inhibit the conversion of arachidonic acid to leukotrienes?
a. cyclooxygenase
b. lipoxygenase
c. phospholipase A2
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- Which of the following about eicosanoids is incorrect? A. Cyclooxygenase pathway produces prostaglandins from arachidonic acid. B. Lipoxygenases metabolize arachidonic acid to thromboxane. C. Lipoxygenase pathway produces leukotrienes. D. Phospholipase A2 catalyzes the liberation of arachidonic acid from phospholipidsThe patient has an increase in the activity of tartrate-resistant acid phosphatase in the blood serum. a) Damage to which organ is most likely in the patient b) Which group of blood enzymes does it belong to? c) The activity of what other enzymes increases in blood serum when this organ is affected?People with type 2 diabetes have cells that do not respond to insulin, explain the problem this causes and why that problem occurs (at the cellar level)
- What is the main function of anti-oxidant compounds? Select one: a. They donate hydrogen ions to free radicals b. They aid in metabolism by stripping electrons from carbohydrates and fatty acids c. They help reduce concentration of HDL in the blood d. They interfere with function of lipoprotein lipaseA patient with a liver dysfunction has shown extremely high levels of bilirubin. Which of the following enzymes could be up regulated? A. Biliverdin reductase B. Heme oxygenase C. Biliverdin hydrogenase D. Glucoronyl bilirubin transferaseWhich of the following describes the function of lipoprotein lipase? Select one: a. It catalyzes the synthesis of lipoproteins b. It helps recycle unused cholesterol by converting to bile salts c. It helps to transport VLDL's in the blood d. It cleaves fatty acids from chylomicrons e. It helps to increase concentration of "good cholesterol"
- Elevated concentration of ketones in the blood is called_____________________.A patient is brought to the emergency department due to acute pain, nausea, and vomiting. Computed tomography indicates acute pancreatitis that leads to an increased activation of trypsin. Which of the following is most likely activated in this condition? a. Lysophospholipase b. Colipase c. Pancreatic lipase d. Gastric lipaseGive typing answer with explanation and conclusion Which of the following enzymes are inhibited by corticosteroids? a) Lipoxygenase only b) COX-1 only c) COX-2 only d) Phospholipase
- In sickle cell anemia, hemoglobin forms long fibers as a result of a) Burying of non-polar amino acids b) Burying polar amino acids c) Exposing polar amino acids d) Electrostatic interaction between glutamate and non polar amino acidsThe enzyme involved in the formation of fructose-6-phosphate is a/an A. isomerase B. aldolase C. transketolase D. transaldolaseDefine the following terms: a. phosphatidylinositol cycle b. PIP2 c. IP3 d. DAG e. PKC