For each of the metabolic transformations (e) through (h), determine whether the compound on the left has undergone oxidation or reduction. Balance each transformation by inserting H-H and, where necessary, H₂O. (e) Reaction type (f) Reaction type (g) Reaction type (h) Reaction type 1 OH OH OH II CH₂-C-CH₂ I H Glycerol H of H H Toluene -CH₂-CH₂-C Succinate CH₂-C Pyruvate + OH 0 OH |||| CH₂-C-CH₂ Dihydroxyacetone Benzoate + H¹ Acetate Fumarate CH₂-C + CO₂ Answer Bank oxidation +H-H + 2H-H + 3 H-H reduction + H₂O + 2 H₂O + 3H₂O
Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
![One biochemical strategy of many living organisms is the stepwise oxidation of organic compounds to CO₂ and H₂O and the
conservation of a major part of the energy thus produced in the form of ATP. It is important to be able to recognize oxidation-
reduction processes in metabolism.
Reduction of an organic molecule results from the hydrogenation of a double bond (Eqn 1) or of a single bond with
accompanying cleavage (Eqn 2). Conversely, oxidation results from dehydrogenation. In biochemical redox reactions, the
coenzymes NAD and FAD dehydrogenate/hydrogenate organic molecules in the presence of the proper enzymes.
CH₂ CH + H-H
Acetaldehyde
H
reduction
=(Q=F
oxidation
L
CH₂-C +H+ +H-H
Acetate
reduction
oxidation
reduction
oxidation
CH₂-C
CH₂-
H
H+
O-H
reduction
oxidation
CH₂-C-H
Ethanol
CH, C-H+ o
H
Acetaldehyde
(1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff153f65b-a5bd-400b-be2c-4cde890c9d0b%2Fb13b1a0e-dc74-49af-b996-73befba155e2%2Fv2z3vj_processed.jpeg&w=3840&q=75)
![For each of the metabolic transformations (e) through (h), determine whether the compound on the left has undergone oxidation
or reduction. Balance each transformation by inserting H-H and, where necessary, H₂O.
(e) Reaction type
(f) Reaction type
(g) Reaction type
(h) Reaction type
OH OH OH
T
CH₂-C-CH₂
H
Glycerol
H
of
H
Toluene
-CH₂-CH₂-C
H
Succinate
CH₂-C
Pyruvate
+
OH O OH
||||
CH₂-C-CH₂
Dihydroxyacetone
Benzoate
+ H¹
Acetate
Fumarate
CH₂-C + CO₂
Answer Bank
oxidation
+H-H
+ 2 H-H
+ 3 H-H
reduction
+ H₂O
+ 2 H₂O
+ 3H₂O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff153f65b-a5bd-400b-be2c-4cde890c9d0b%2Fb13b1a0e-dc74-49af-b996-73befba155e2%2Fnzf3no_processed.jpeg&w=3840&q=75)
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