UNE Biochemistry Final Test Bundle

Somatostatin reduces the secretion of both glucagon and insulin through which of the following mechanisms? a. Somatostatin activates an activator G-protein b. Somatostatin activates MAPK cascade c. Somatostatin activates an inhibitory G-protein d. Somatostatin uses Ca+2 as a downstream signal...

An individual goes to bed around 8 pm and doesn't wake up until 9 am the next morning. During this time, which of the following is the primary oxidizable substrate in the skeletal muscle? - Free fatty acids Under fasted conditions as described above, the skeletal muscle and liver would be oxi...

A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was found to be elevated 20-fold over normal values. Urine orotic acid and uracil were both greater than normal. A defect of which of the following enzymes is the most likely diagnosis? - Ornithine transcarba...

A 3-year-old male is brought to the emergency department by his parents. He is unconscious on admittance and his blood glucose was 15 mg/dl, ( normal 75 - 105 mg/dl). Further testing showed this individual had a deficiency in carnitine. Based on this diagnosis you would also expect which of the foll...

What are the main products of beta oxidation? - 1 NADH, 1 FADH, 1 Acetyl CoA So in the case of an 11-year-old girl brought to the emergency department by her father, he's reporting that she's been very thirsty and needing to make frequent strips to the bathroom. Today, she reported lighthead...

Under fasting conditions (ratio of insulin to glucagon <1), elevated glucagon will activate which of the following enzymes? - Hormone sensitive lipase The process of ketogenesis refers to the conversion of acetyl CoA to which of the following compounds? - D-3-hydroxybutyrate or B-hydroxy...

Under fasting conditions (ratio of insulin: glucagon <1), elevated glucagon will activate which of the following enzymes? - hormone sensitive lipase Ketonuria, hypoglycemia, and severe acidosis are prime diagnostic indicators of the presentation of type 1 diabetic ketoacidosis. Which of the...

Control of Fatty Acid Synthesis vs. Oxidation - When Insulin is HIGH --> fatty acid synthesis occurs When Glucagon is HIGH --> lipolysis, fatty acid B-oxidation, ketogenesis occur **These never happen at the same time! Lipolysis - Process of releasing free fatty acids from triacyl...

An 11-year-old girl is brought to the emergency department by her father. He reports she has recently been very thirsty and needing to make frequent trips to the bathroom. At her soccer game today, she complained of lightheadedness and that the symptoms did not resolve even after drinking a power be...

The cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? - Increases degradation of HMG-CoA reductase Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? - Chy...

Insulin-mediated glucose uptake by muscle and adipose tissue is a result of: - Translocation of GLUT 4 receptors to the cell surface The two primary non-toxic methods of transport ammonia are using he amino acids: - glutamine and alanine a healthy, well-nourished 27-year old ate a large ...