Biochemistry Basics Of Carbohydrates Quiz

58 Questions | Total Attempts: 139

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Carbohydrate Quizzes & Trivia

Questions and Answers
  • 1. 
    Which response would reflect an increase in plasma insulin levels?
    • A. 

      A) increase in adipose cell triglyceride synthesis/storage

    • B. 

      B) increased liver glucose release

    • C. 

      C) increases glucagon production

    • D. 

      D) decrease in muscle gylcogen

    • E. 

      E) none of the above

  • 2. 
    Which stomach hormone acts on the hypothalamus to promote the sensation of hunger?
    • A. 

      A) leptin

    • B. 

      B) ghrelin

    • C. 

      C) cholecystokinin

    • D. 

      D) peptide YY

    • E. 

      E) insulin

  • 3. 
    During aerobic respiration, the transfer of electrons down the electron transport chain ultimately results in the formation of?
    • A. 

      A) oxygen

    • B. 

      B) glucose

    • C. 

      C) water

    • D. 

      D) pyruvate

    • E. 

      E) none of the above

  • 4. 
    Which form of cholesterol transport is most closely associated with a lowered risk of atherosclerosis and therefore considered to be a "good" cholesterol?
    • A. 

      A) high density lipoprotein (HDL)

    • B. 

      B) chylomicrons

    • C. 

      C) low density lipoproteins (LDL)

    • D. 

      D) very low density lipoproteins (VLDL)

    • E. 

      E) monoglycerides

  • 5. 
    The testicular cells that produce testosterone are the:
    • A. 

      A) Sertoli cells

    • B. 

      B) spermatogonia

    • C. 

      C) sustentacular cells

    • D. 

      D) interstitial (Leydig) cells

    • E. 

      E) none of the above

  • 6. 
    Sertoli cells of the testis are principally regulated by which hormone?
    • A. 

      A) growth hormone (GH)

    • B. 

      B) thyroid-stimulating hormone (TSH)

    • C. 

      C) luteinizing hormone (LH)

    • D. 

      D) human chorionic hormone (hCG)

    • E. 

      E) follicle-stimulating hormone (FSH)

  • 7. 
    According to the two-cell mechanism of follicular estrogen synthesis,
    • A. 

      A) Granulosa cells synthesize an androgen which the theca cells covert to estrogen

    • B. 

      B) Sertoli cells synthesize an androgen which the granulosa cells convert to dihydrotestosterone

    • C. 

      C) Theca cells synthesize an androgen which luteal cells convert to estrogen

    • D. 

      D) Production of progesterone by the corpus luteum requires cooperative interaction between two cell types

    • E. 

      E) Theca cells synthesize an androgen which the granulosa cells convert to estrogen

  • 8. 
    Beginning on the first day of the menstrual cycle, the order of the events in the uterus is?
    • A. 

      A) proliferative, secretory, menstrual phase

    • B. 

      B) secretory, proliferative, menstrual phase

    • C. 

      C) menstrual, secretory, proliferative phases

    • D. 

      D) menstrual, proliferative, secretory phases

    • E. 

      E) secretory, menstrual, proliferative phases

  • 9. 
    In the process of ovulation what is actually ejected from the ovary?
    • A. 

      A) primary oocyte

    • B. 

      B) secondary oocyte

    • C. 

      C) ovum

    • D. 

      D) oogonium

    • E. 

      E) none of the above

  • 10. 
    The implanting blastocyst "rescues" the corpus luteum by?
    • A. 

      A) secreting large quantities of FSH and LH

    • B. 

      B) secreting GnRH, which stimulates the pituitary gland to secrete FSH and LH

    • C. 

      C) secreting chorionic gonadotropin (hCG)

    • D. 

      D) secreting progesterone and estrogen

    • E. 

      E) all of the above

  • 11. 
    An obstruction of the common bile duct would have which effect?
    • A. 

      A) elevated blood chylomicron levels

    • B. 

      B) presence of bile salts in the large intestine

    • C. 

      C) decreased secretion of cholecystokinin

    • D. 

      D) production of feces containing undigested fats

    • E. 

      E) none of the above

  • 12. 
    Which class of enzymes produces glucose from complex carbohydrates?
    • A. 

      A) carboxypeptidase

    • B. 

      B) amylase

    • C. 

      C) trypsin

    • D. 

      D) lipase

    • E. 

      E) ribonuclease

  • 13. 
    Nutrients from the small intestine are transported to the liver via which major blood vessel?
    • A. 

      A) celiac artery

    • B. 

      B) superior mesentreric artery

    • C. 

      C) inferior mesenteric artery

    • D. 

      D) hepatic portal vein

    • E. 

      E) hepatic artery

  • 14. 
    Which area if the gastrointestinal tract is the primary site of fluid reabsorption that compensates for the large daily fluid production (approximately 10 L)?
    • A. 

      A) esophagus

    • B. 

      B) stomach

    • C. 

      C) small intestine

    • D. 

      D) colon

    • E. 

      E) rectum

  • 15. 
    Which organ is important to carbohydrate and lipid metabolism because its cells can store both carbohydrate (as glycogen) and lipids (as triglycerides)?
    • A. 

      A) stomach

    • B. 

      B) large intestine

    • C. 

      C) pancreas

    • D. 

      D) liver

    • E. 

      E) gall bladder

  • 16. 
    The lipoproteins that are transported away from the small intestine via the lacteals are termed?
    • A. 

      A) triglycerides

    • B. 

      B) monoglycerides and fatty acids

    • C. 

      C) chylomicrons

    • D. 

      D) pinocytotic vesicles

    • E. 

      E) LDLs

  • 17. 
    Which organ actually produces most of the enzymes required for digestion?
    • A. 

      A) stomach

    • B. 

      B) small intestine

    • C. 

      C) pancreas

    • D. 

      D) liver

    • E. 

      E) gall bladder

  • 18. 
    All of the following are normal functions of hepatocytes EXCEPT?
    • A. 

      A) synthesis and breakdown of glycogen

    • B. 

      B) degradation and conjugation of drugs or toxins

    • C. 

      C) endocytosis of chylomicrons

    • D. 

      D) synthesis and secretion of immunoglobulins

    • E. 

      E) synthesis and secretion of bile acids

  • 19. 
    The function of the colon is to absorb:
    • A. 

      A) vitamins

    • B. 

      B) water

    • C. 

      C) fats

    • D. 

      D) carbohydrates

    • E. 

      E) proteins

  • 20. 
    The sum total of all the chemical reactions necessary to maintain life is termed:
    • A. 

      A) anabolism

    • B. 

      B) metabolism

    • C. 

      C) catabolism

    • D. 

      D) cannibalism

    • E. 

      E) none of the above

  • 21. 
    Based on the greatest amount of energy (ATP) produced per mole of glucose, the most important pathway in the process of cellular respiration is:
    • A. 

      A) glycolysis

    • B. 

      B) Krebs cycle

    • C. 

      C) oxidative phosphorylation

    • D. 

      D) Acetyl CoA

    • E. 

      E) none of the above

  • 22. 
    Gluconeogenesis is an anabolic process in which:
    • A. 

      A) glycogen is broken down into glucose

    • B. 

      B) glycogen is formed

    • C. 

      C) glucose is formed from noncarbohydrate sources

    • D. 

      D) glucose is converted into CO2 and water

    • E. 

      E) none of the above

  • 23. 
    Where doe glycolysis take place?
    • A. 

      A) mitrochondrial inner membrane

    • B. 

      B) cell cytoplasm

    • C. 

      C) mitochondrial matrix

    • D. 

      D) cell nucleus

    • E. 

      E) mitochondrial outer membrane

  • 24. 
    What would be the overall effect on the liver of a decrease in plasma [insulin] accompanied by increases in glucagon, epinephrine, and sympathetic nervous system activity?
    • A. 

      A) increase glycogenolysis

    • B. 

      B) decreased glycogenolysis

    • C. 

      C) decreased gluconeogenesis

    • D. 

      D) decrease lipolysis

    • E. 

      E) decreased proteolysis

  • 25. 
    The lipoproteins that remove cholesterol from the tissues are?
    • A. 

      A) chylomicrons

    • B. 

      B) lipoprotein lipases

    • C. 

      C) VLDLs

    • D. 

      D) LDLs

    • E. 

      E) HDLs