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Concept explainers
(a)
Interpretation:
FADH2 should be classified as an oxidizing agent, a reducing agent or neither.
Concept Introduction:
During oxidation of compound electrons or hydrogens are lost or oxygen is gained. During the reduction of a compound, electrons or hydrogens are gained or oxygen is lost. Coenzymes act as oxidizing agents or reducing agents. Oxidizing agent drives the oxidation reaction and gets reduced. Reducing agent drives reduction reactions and gets oxidized.
(b)
Interpretation:
ATP should be classified as an oxidizing agent, a reducing agent or neither.
Concept Introduction:
During oxidation of compound electrons or hydrogens are lost or oxygen is gained. During the reduction of a compound, electrons or hydrogens are gained or oxygen is lost. Coenzymes act as oxidizing agents or reducing agents. Oxidizing agent drives the oxidation reaction and gets reduced. Reducing agent drives reduction reactions and gets oxidized.
(c)
Interpretation:
NAD+ should be classified as an oxidizing agent, a reducing agent or neither.
Concept Introduction:
During oxidation of compound electrons or hydrogens are lost or oxygen is gained. During the reduction of a compound, electrons or hydrogens are gained or oxygen is lost. Coenzymes act as oxidizing agents or reducing agents. Oxidizing agent drives the oxidation reaction and gets reduced. Reducing agent drives reduction reactions and gets oxidized.
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Chapter 23 Solutions
EBK GENERAL, ORGANIC, & BIOLOGICAL CHEM
- The free energy released by the hydrolysis of ATP under standard conditions at pH 7.0 is 30.5 kJ/mol. If ATP is hydrolyzed under standard conditions except at pH 5.0, is more or less free energy released? Explainarrow_forwardFor a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A] was 0.075 M and the acid [HA] was 0.025 M. What percent of this acid is ionized at pH 6.0? What is the pKa of this acid? What pH would this acid be 50% lonized?arrow_forwardWhat are the products for the chemical reaction of C2H5OH+O2—->arrow_forward
- Is that true or false ? The presence of sugars, ascorbic acid, citric acid and amino acids in food in concomitant with nutritional iron sources will reduce iron absorption since they tend to form insoluble complexes with iron.arrow_forwardUnder the following conditions, which compound is the oxidant and which compound is the reductant? • Organic matter degradation under aerobic conditions Organic matter degradation under anaerobic conditions with pyrite sedimentsarrow_forwardWhich substance will not be transported into a cell by simple diffusion? cortisone 02 epinephrine CO2 estrogenarrow_forward
- Classify each substance as an oxidizing agent, a reducing agent, or neither: (a) NADH; (b) ADP; (c) FAD.arrow_forward18) Atropine and cocaine are used in the diagnosis of diseases.arrow_forwardKidney stones are crystals of calcium oxalate that form in the kidney, ureter, or bladder. Small kidney stones are passed out of the body easily, but larger kidney stones may block the ureter causing severe pain. If the [Ca2+] in blood plasma is 5 × 10-3 M, what [C2O42-] must be present to form a kidney stone? (Calcium oxalate Ksp = 2.3 x 10-9)arrow_forward
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