BIOL
238
Sample
Questions
Nutrition
1 through 5, Match the description with the hormone or hormones described. Answers may be used more than once or not at all.
(A) insulin, (B) glucagon, (C) epinephrine, (D) cortisol, (E) both A and B, (F) Both B and C,
(G) B, C, and D only.
1. Produces glycogenesis
2. Produces glycogenolysis
3. Stimulates conversion of glucose to fat.
4. Produced in the pancreatic Islets of Langerhans.
5. Causes gluconeogenesis only during extreme physical stress or trauma.
6. Causes gluconeogenesis at the beginning of the post-absortive phase when amino acids are abundant, but no stress is present.
7. Secreted in response to an increase in plasma glucose.
8. Causes glucose uptake into muscle and fat cells.
9. Primarily a hormone of the absorptive phase.
10. Results in an increase in plasma glucose.
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11. An amine group is removed from a-ketoglutaric acid and the resulting keto acid is fed into the Krebs cycle for catabolism. This is called:
(A) transamination, (B) oxidative deamination, (C) urea synthesis, (D) lipolysis, (E) beta oxidation.
12.. The amine group from the above reaction is:
(A) converted to ammonia which is excreted; (B) converted to urea which is excreted;
(C) excreted via the bile; (D) sent to glycolysis.
13. An amine group is transferred to an a-ketoglutaric acid from an ingested amino acid, thus producing glutamic acid. This is called:
(A) transamination, (B) oxidative deamination, (C) urea synthesis, (D) lipolysis, (E) beta oxidation
14. Fatty acids are broken down into acetyl groups to be fed into the Krebs cycle by this process:
(A) transamination, (B) oxidative deamination, (C) urea synthesis, (D) lipolysis, (E) beta oxidation
15. When it occurs in excess the above process tends to cause acidosis due to the produced.
(A) acetyl groups, (B) keto acids, (C) lactic acid, (D) oxaloacetic acid, (E) ketone bodies.
16. Chronic inflammation and loss of normal liver
tissue with fibrosis and nodular regeneration is called:
(A) hepatitis, (B) cirrhosis, (C) keto acidosis, (D) beta oxidation.
17. Hepatocytes depend on the _____ to bring glucose, amino acids, etc. which are the basis for liver function
(A) hepatic artery, (B) hepatic portal vein, (C) hepatic vein, (D) bile duct