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Graduate Biochemistry Questions

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Graduate Biochemical Pathways
Phosphorylation of Fructose 6-Phosphate is allosterically inhibited by                             .
  1. High ATP
  2. High citrate
  3. Low Fructose 2,6 Bisphosphate
  4. Two of the Above
  5. All of the Above
Graduate Biochemical Pathways
In the pathway favored by glucagon, carbon dioxide is released when                                                .
  1. Glucose 6-P ---> Fructose 6-P
  2. Isocitrate ---> a-Ketogluterate
  3. Succinyl CoA --> a-Ketogluterate
  4. 1,3 Bisphosphoglycerate ---> Glyceraldehyde 3-P
  5. None of the Above
Graduate Biochemical Pathways
Graduate Biochemical Pathways
NADH is anaerobically produced in what pathway(s)?
  1. Glycolysis
  2. Oxidative Phosphorylation
  3. Gluconeogenesis
  4. Two of the Above
  5. All of the Above
Graduate Macromolecules
Graduate Macromolecules
What are the monomers of proteins?
  1. Hydrochloric acids
  2. Nucleic acids
  3. Carboxylic acids
  4. Amino acids
Graduate Macromolecules
What is the chemical equation for glucose?
  1. C2H4O2
  2. C4H8O4
  3. C6H12O6
  4. C8H16O8
Graduate Biochemical Pathways
Which of the following best describes the chemical equation for photosynthesis?
  1. Carbon dioxide + Sugar + Energy = Oxygen + Water
  2. Oxygen + Water + Carbon dioxide = Sugar + Energy
  3. Water + Carbon dioxide + Energy = Sugar + Oxygen
  4. Oxygen + Sugar = Water + Carbon dioxide + Energy
Graduate Macromolecules
Lipids are all                .
  1. hydrophonic
  2. hydrophilic
  3. hydrophobic
  4. hydrolytic
Graduate Biochemical Pathways
Which polysaccharide consists of individual long, twisted, unbranched chains of glucose?
  1. Starch
  2. Cellulose
  3. Glycogen
  4. This does not describe a polysaccharide.
Graduate Macromolecules
A fat is said to be saturated if                                                          .
  1. There are many double bonds present in the molecule.
  2. There are only single bonds between each pair of carbons.
  3. The fat molecule cannot contain any more covalent bonds.
  4. There are as many double bonds present as possible.
Graduate Biochemical Pathways
Graduate Macromolecules
Which would have the highest concentration of C-H bonds?
  1. Saturated fat
  2. Unsaturated fat
  3. Trans fat
  4. Cholesterol
Graduate Macromolecules
Which of the following large organic molecules includes table sugar?
  1. Carbohydrates
  2. Lipids
  3. Proteins
  4. Nucleic acids
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