Exam 3: Clicker Questions Flashcards
In the urea cycle, which of the following reactions occurs in the mitochondria?
Ammonia + CO2 –> Carbamoyl phosphate
In protein synthesis, how many high energy bonds are needed to form one peptide linkage?
4
Which of the following is the major rate-limiting factor for almost all energy metabolism in the body?
ADP
Which of the following statements is true?
Liver has high blood flow and low vascular resistance
Which of the following is not characteristic of the metabolic syndrome associated with diabetes?
Peripheral neuropathy
Heme is released from damaged RBCs and split into globin and heme by macrophages. Heme is t hen converted into which of the following by heme oxygenase?
Biliverdin
A higher than normal back pressure is hepatic veins may lead to the following conditions.
Ascites
One of the best known stimuli for increasing the rate of thyroid releasing hormone secretion is…?
Cold
Which of the following is a common cause of hyperthyroidism?
Grave’s disease
The basal membrane of thyroid cells contain symporters for iodide. What ion is co-transported with iodine by theses symporters?
Sodium
Down regulation of receptors may occur as a result of which of the following?
Inactivation of some of the intracellular protein signaling molecules
Aldosterone is the major mineralocorticoid and is secreted by which of the following regions of the adrenal cortex?
Zona glomerulosa
Cortisol secretion is controled mainly by which of the following factors?
ACTH
Which of the following is NOT a characteristic of lack of aldosterone?
Hypernatremia
“Adrenal diabetes” may occur due to excess of which of the following?
Glucocorticoids
