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- Question 4 If 32p – labeled (radioactive phosphate) inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of the following molecules would you expect to detect 32 p in Glycolytic intermediates? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Fructose 1-6 bisphosphate b 3-Phosphoglyceraldehyde Dihydroxyacetone phosphate d 2-Phosphoglycerate e 1-3 bisphosphoglycerate f Phosphoenolpyruvate 3-Phosphoglycerate h Pyruvate i None of the aboveQUESTION 10 Which one of the following statements does NOT correctly describe the current state of the chymotrypsin-substrate complex below or the next mechanistic step that occurs? s,' G193 S195 NH NH R -NH R-NH HN- Ser-195 His-57 HN Asp-102 OA. This intermediate is part of a nucleophilic acyl substitution reaction. OB. In the next step His-57 protonates Ser-195. O C. In the next step His-57 activates a water molecule. O D. In the next step His-57 protonates the leaving group. OE. In the next step the N-terminal fragment of the original substrate departs.Question 2 Assume the carbon atoms in a molecule of glucose are radioactive. Referencing specific compounds, trace where the radioactive carbon atoms in glucose end up through the catabolic process of cellular respiration. Make sure to tally the number of molecules and the number of carbon atoms in each of them to ensure all carbon atoms in glucose are accounted for.
- QUESTION 22 When the final product of a series of enzymatically-catalyzed reactions binds to the first enzyme in the pathway to limit its production, it generally uses ___ because the structure of this final product is generally not similar to that of any of the enzyme's normal substrates. Allosteric activation Zymogen activation Covalent modification Competitive inhibition Allosteric inhibitionQUESTION 2 In the cyclic form, the compound produced by oxidation of an aldose is a hemiacetal. a hemiketal. a lactone. an amino sugar.Question 11 The breakdown of large molecules by the enzymatic addition of water is an example of what kind of reaction? O 1. oxidation O 2. reduction O 3. condensation O 4. hydrolysis O 5. decarboxylation A Moving to another question will save this response. W AR SONY ASSIST BUtton, Onetouch
- Question 4 !! If 32p-labeled (radioactive phosphate) inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of the following molecules would you expect to detect 32P in Glycolytic intermediates? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Fructose 1-6 bisphosphate 3-Phosphoglyceraldehyde Dihydroxyacetone phosphate m d. 2-Phosphoglycerate e 1-3 bisphosphoglycerate Phosphoenolpyruvate g 3-Phosphoglycerate h Pyruvate i None of the aboveQuestion 20 of 25 The figure below illustrates what reactions of amino acids? coo C=0 CH₂ CH₂ =0 00 + NHⒸ Decarboylation Cystine formation Esterification Transamination Peptide bond formation Transmethylation NAD(P)H+H Oxidative deamination Amide formation NAD(P) H₂ +H₂O COO CH₂ I میں CH₂ COOⒸ ATP ADP +P₁ H₂N-CH NHO CH₂ CH₂ NH₂ 20Question 8 All of the following have terpene structure, except Cholecalciferol Squalene Carotenoids Lanosterol
- QUESTION 6 A series of experiments were performed in Neurospora crassa in order to define the tryptophan biosynthesis pathway. In one of these experiments, five tryptophan auxotrophs were isolated and tested for growth on tryptophan and five other known intermediates in the tryptophan biosynthesis pathway. The growth responses are shown below: Growth on Anthranilic Acid (AA) Growth on Indole Growth on Indole Glycerol Phosphate (IGP) Growth on Chorismic Acid (CA) Growth on N- Anthranilate (NA) Growth on Tryptophan Mutants: trp-1 trp-2 + + trp-3 + trp-4 + + + trp-5 + + + - + + + + + + Using the growth data in the above table, indicate the precursor (molecule that you start with) and the order of the intermediates in this pathway (please use exact spelling or abbreviation). Rxnl Rxn2 Rxn3 Rxn5 Tryptophan Rxn4 Indicate the mutant that is associated with the enzyme that catalyzes the reactions for tryptophan biosynthesis using the data given in the above table. Rxn1: Rxn2: Rxn3: Rxn4: Rxn5:Question 4 Lipids are the biomolecules of choice for storage of metabolic energy because they: O yield a large amount of energy after complete oxidation. O yield a large amount of energy after complete reduction O yield a large amount of energy after complete trans isomerization yield a large amount of energy after complete hydrolysisQUESTION 26 In the câtalytic mechanism of an aminotransferase, one substrate binds and reacts, leaving behind an amine group covalently attached to the enzyme, then the second substrate can bind. This is best described as: Association dissociation O random single displacement ping-pong or double displacement O ordered single displacement QUESTION 27 For a Michaelis-Menten enzyme, kį = 4.0 x 10° M's,k] = 2.0 x 10° s-!, and kɔ = 5.0 x 10 s What is its Km? Give your answer in uM in four significant figures in normal notation. QUESTION 28 Which amino acid is most likely to break an alpha helix? Click Save and Submit to save and submit. Click Save All Answers to save all answers. 798 Mostly cloudy P Type here to search