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- The following is the chemical structure of nicotinamide adenine dinucleotides, a coenzyme commonly used in enzymatic reactions. Но 4 HO 0-P-0 *Na "O. `NH2 N 1 "OH H2N OH Which of the indicate regions is the site of the redox activity of this coenzyme? 2.HO-C-CH,-CH,~ Identify the enzyme needed in each of the following reactions as an isomerase, a decarboxylase, a dehydrogenase, a protease, or a phosphatase. о CH;-C-Č-OH → CH;-Č–H + CO, СНО CH,OH НС—ОН C=0 HO-CH — НО -СН НС—ОН НС—ОН HO-CH Но -СH CH-OPO,?- ČH-OPO,- Но -С—СН,—CH, —С—ОН — Но -С—СН—СH-С-ОН + 2Н H;N-CH-C-NH-CH-CO0 +H;O → CH; ČH3 2 H;N-CH-CO0- ČH3His388 Glu357 His388 Glu357 Ring opening Proton HO HO abstraction HO но- G6P He NH- NH His388 His388 His388 Glu357 Glu357 Glu357 HO но HO но- но OH cis-enediol F6P Ring closure intermediate OH Describe the mechanism shown above for phosphoglucose isomerase. Describe the chemistry of each step • How the enzyme appears or might facilitate the chemistry How the enzyme increases the reaction rate.
- Choose the correct properties for the given fatty acid: 0 0 can participate in esterification reactions n Unsaturated trans Has no hydrophylic region Has hydrophylic region Saturated cis Saponifable cannot participate in esterification reactions Unsaponifable OHAmino acids are linked through peptide bonds to form proteins. This linkage of amino acids in the formation of proteins accomplished by [ Select ] reaction V [ Select ] Hydrolysis Fission Condensation FusionSH CH2 CH2 NH This structure plays an important role in the synthesis of H CH3 c-CH,-CH,-N-C-c-c-CH2-O ö o ČH, H. 0-5-0- %3 H O glycogen from glucose 6-phosphate. O fatty acids from acetyl coenzyme A O glucose from pyruvate. O glyceraldehyde 3-phosphate from fructose. O ATP from ADP and inorganic phosphate.
- H H H-C-OH CH-Q HOOHH H OH Glucose H-C=O H-C-H H H-C=0 ATP ADP H-C-OH HO-C-H H-C-OH Н Pyruvate OH Hexokinase ATP ADP IVE pyruvate kinase H-C-O-P-0 Glucose 6-phosphate (PEP) GLYCOLYSIS H-C-O-P=O H-C-OHO-H-C-OHO kinase isomerase но Phosphoenolpyruvate H-C-OH ÇO ATP ADP HO-C-H H-C-OH HO-C-H Phosphofructo H-C-OH aldose H-C-OHỌ H-C-O-P-0 HO Fructose 1, 6-bisphosphate H-C-O-P=O H 6- Fructose 6-phosphate H H-C-O-P=O C=O 6- Fructose bisphosphate H-C-OHO ATP 9 H H-C-O-PO C=O o- HO-C-H Dihydroxyacetone phosphate H ADP Glyceraldehyde 3-phosphate dehydrogenase 2X Triose phosphate isomerase H c=0 H-C-OHO H-C-O-PO 3-phosphate Hỏ NAD + P NADH+H* -O-P=O Ó c=0 Glyceraldehyde N H-C-O-P-O Enolase H-OHO phosphoglycerates-C-O-P-0 phosphoglycerate HC-OHO kinase H H-C-O-P=O Ĥ 6- 2-Phosphoglycerate 3-Phosphoglycerate 1,3-BisphosphoglycerateWhich C-C is most likely to be broken by aldolase? CH₂-OPO3²- TE C=O | HO-C-H 1 H-C-OH | H-C-OH | CH₂-OPO3²- A BUDE CAlcohol dehydrogenase (ADH), catalyzes a reaction where primary alcohol is converted an aldehyde using NAD* ADH fits in which class of enzyme? hydrolases lyases transferases O oxidoreductases QUESTION 25 In the serine protease catalytic mechanism, which of the following helps stabilize the tetrahedral intermediate? O low barrier hydrogen bond oxyanion hole aspartate side chain O histidine side chain QUESTION 26 In the catalytic mechanism of an aminotransferase, one substrate binds and reacts, leaving behind an amine group Click Save and Submit to save and submit. Click Save All Answers to save all answers. 78 Mostly dly 3 Type here to search
- Which class of enzymes have sigmoid or S-shaped plots of the rate of a reaction, v, versus the substrate concentration, [S], instead of the hyperbolic curves of the Michaelis-Menten equation? transferases holoenzymes O hydrolases O allosteric enzymes O ribozymesWhich class does the following enzyme belong to: CO₂ + GTP GDP 選 C=0 CH₂ phosphoenolpyruvate carboxykinase Hydrolases Lyases Ligases Transferases Oxidoreductases C-O-PO- I CH₂Which of the following statements is true O Sphingomyelin posses phosphoryl serine in addition to two long hydrocarbon chains, one contributed by a fatty acid and the other by sphingosine OLipid compositions of membrane mono-layers are symmetrical O Unsaturated fatty acids have double bond(s) in the cis configuration In ABO blood typing, lack of glycosyltransferase and galactosyltransferase produces AB blood group