Nutrition_CH3_Carbohydrates

  1. A molecule with equal numbers of carbon and oxygen atoms and twice as many hydrogen atoms is classified as a:




    B.
  2. A carbohydrate containing 6 carbons and an aldehyde group is caled a(n):




    D.
  3. Carbon atoms with 4 different atoms or groups covalently attached are said to be:




    B.
  4. Hemiacetals and hemiketals refer to cyclized forms of monosaccharides and are represented by _____ projections.




    D.
  5. Pentose sugars are important for:




    D.
  6. Disaccharides are digested:




    D.
  7. Starch exists as both:




    B.
  8. Which of the following homopolysaccharides made of glucose cannot be digested by humans?




    D.
  9. Glycosidase enzymes perform which of the following functions?




    C.
  10. What is a key enzyme in digestion of disaccharides?




    D.
  11. Which of the following carbon bonds are digested by isomaltase?




    D.
  12. What is the process by which glucose enters the mucosal cells?




    B.
  13. What monosaccharide is the exclusive constituent molecule of all starches?




    D.
  14. Which glucose transporter is responsible for basal, or constitutive, glucose uptake?




    D.
  15. Which hormonal changes occur in response to a rise in blood glucose concentration?




    D.
  16. What is the pathway by which glucose is released from glycogen?




    C.
  17. Which of the following tissues release glucose to the blood between meals?




    A.
  18. Glycogenesis is a process involving




    B.
  19. Metabolizing monosaccharides aerobically through glycolysis, the pyruvate dehdrogenase complex, the Krebs cycle and electron transport results in:




    D.
  20. Which of the following pathways occurs in the mitochondria?




    C.
  21. What organelle is missing from erythrocytes, requiring them to use glycolysis as the sole provider of ATP?




    D.
  22. In the Cori cycle, lactate is primarily used for _____.




    D.
  23. Under aerobic conditions within a cell how many ATPs are formed during glycolysis by substrate level phosphorylation and oxidative phosphorylation of the NADH + H+ if the malate-aspartate shuttle is used?




    A.
  24. In one turn of the Krebs cycle, how many ATPs are formed?




    D.
  25. Pentose phosphates and NADPH produced during the hexose monophosphate shunt are important for all of the following EXCEPT _____.




    B.
  26. A tissue which has high activity of the hexose monophosphate shunt is:




    C.
  27. The phosphofructokinase reaction in glycolysis is bypassed in gluconeogenesis by which of the following enzymes?




    D.
  28. Modulators of allosteric enzymes generally act by:




    B.
  29. Epinephrine positively regulates _____.




    C.
  30. The iron-sulfur center of Complex I of the electron transport chain collects only ________ from the FMN system.




    C.
  31. By bypassing Complex I and entering the electron transport chain at Complex II, electrons carried by one moe FADH2 generate _____ mole(s) ATP.




    B.
  32. Translocation of protons from the matrix into the intermembrane space accompanies electron flow:




    A.
  33. According to the Chemiosmotic theory ATP is formed when:




    B.
  34. F0 F1 ATPase is another name for _____.




    D.
  35. Disparity in electrical charge and in proton concentration between the intermembrane space and the mitochondrial matrix:




    C.
  36. During usual metabolic oxidation about _____ of the energy released by electron flow is lost as heat.




    C.
Author
PicOlio
ID
124651
Card Set
Nutrition_CH3_Carbohydrates
Description
Human Nutrition CH 3 Carbohydrates
Updated