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Concept explainers
(a)
Interpretation: To identify the number of phosphate groups in
Concept introduction: Glycolysis is the
The transfer of a phosphoryl group
(b)
Interpretation: To identify the number of phosphate groups in phosphoenolpyruvate.
Concept introduction: Glycolysis is the metabolic pathway that breaks down a glucose molecule and converts it into two pyruvate molecules along with the production of two ATP molecules and NADH coenzymes. The conversion of a glucose molecule to the pyruvate molecules is an oxidation process in which no molecular
The transfer of a phosphoryl group
(c)
Interpretation: To identify the number of phosphate groups in
Concept introduction: Glycolysis is the metabolic pathway that breaks down a glucose molecule and converts it into two pyruvate molecules along with the production of two ATP molecules and NADH coenzymes. The conversion of a glucose molecule to the pyruvate molecules is an oxidation process in which no molecular
The transfer of a phosphoryl group
(d)
Interpretation: To identify the number of phosphate groups in dihydroxyacetone phosphate.
Concept introduction: Glycolysis is the metabolic pathway that breaks down a glucose molecule and converts it into two pyruvate molecules along with the production of two ATP molecules and NADH coenzymes. The conversion of a glucose molecule to the pyruvate molecules is an oxidation process in which no molecular
The transfer of a phosphoryl group
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Chapter 24 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Histidine is an amino acid with three titratable groups: an -NH3+ group (pKa = 9.2), a -COOH group (pKa = 1.8), and an imidazole (amine-like) group (pKa = 6.0). The titration curve for histidine is shown below with four points highlighted. (a) Identify which point on the titration curve corresponds to the pKa for each of the titratable groups, and which point corresponds to the pI. Explain your choices. (b) Calculate the value of pI for histidinearrow_forwardWhat structural relationship is indicated by the term D-sugar? Why are (+) glucose and (-) fructose both classified as D-sugars?arrow_forwardWhat is the Haworth projection for D-Ribulose? And L-Ribulose?arrow_forward
- What structural relationship is indicated by term D-Sugar ? Why are glucose and frutose both characterizes as sugars ? Write the principal functional role of D-Glucose , D- Fructose, and D- Galactose ?arrow_forwardSketch the titration curve for the amino acid alanine with pka1 = 2.34 and pka2 = 9.69.arrow_forwardWhat are the structural differences between (a) purines and pyrimidines, and (b) ribose and deoxyribose sugars?arrow_forward
- What is the pI, and how is it determined for amino acids that have noninionizable R groups?arrow_forwardConsidering the formation of glycosidic linkages between monosaccharides, how many possible trisaccharides can be produced by combining glucose, mannose and galactose? How does this differ from the number of possibilities for a tripeptide composed of three different amino acids?arrow_forwardWhat is the pI, and how is it determined for amino acids that have nonionizable R groups?arrow_forward
- Given the monosaccharide: what is its main functional group (aldose or ketose?)Is it triose, hexose, pentose or tetrose?is it D or L configuration?arrow_forwardWhat is the natural polysaccharide whose repeating structure can be symbolized by GlcUAB(1 3)GICNAC, with these units connected by B(1- 4) links?arrow_forwardWhat is the structural difference between the monosaccharides glucose and galactose?arrow_forward
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