Exam 3: Clicker Questions Flashcards Preview

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Flashcards in Exam 3: Clicker Questions Deck (16):
1

In the urea cycle, which of the following reactions occurs in the mitochondria?

Ammonia + CO2 --> Carbamoyl phosphate

2

In protein synthesis, how many high energy bonds are needed to form one peptide linkage?

4

3

Which of the following is the major rate-limiting factor for almost all energy metabolism in the body?

ADP

4

Which of the following statements is true?

Liver has high blood flow and low vascular resistance

5

Which of the following is not characteristic of the metabolic syndrome associated with diabetes?

Peripheral neuropathy

6

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

7

A higher than normal back pressure is hepatic veins may lead to the following conditions.

Ascites

8

One of the best known stimuli for increasing the rate of thyroid releasing hormone secretion is...?

Cold

9

Which of the following is a common cause of hyperthyroidism?

Grave's disease

10

The basal membrane of thyroid cells contain symporters for iodide. What ion is co-transported with iodine by theses symporters?

Sodium

11

Down regulation of receptors may occur as a result of which of the following?

Inactivation of some of the intracellular protein signaling molecules

12

Aldosterone is the major mineralocorticoid and is secreted by which of the following regions of the adrenal cortex?

Zona glomerulosa

13

Cortisol secretion is controled mainly by which of the following factors?

ACTH

14

Which of the following is NOT a characteristic of lack of aldosterone?

Hypernatremia

15

"Adrenal diabetes" may occur due to excess of which of the following?

Glucocorticoids

16

Addison's disease is due to a deficiency of which of the following?

Glucocorticoids & Mineralocorticoids