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Concept explainers
(a)
Interpretation:
Thiamin is needed or not for the proper functioning of the ETC has to be determined.
Concept introduction:
Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule. There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I: NADH-coenzyme Q reductase.
Complex II: Succinate-coenzyme Q reductase.
Complex III: Coenzyme Q-cytochrome c reductase.
Complex IV: Cytochrome c oxidase.
An overview of the electron transport chain is as follows:
The B-vitamins consist of a group of vitamins that are water soluble and acts as precursors for enzyme cofactors.
(b)
Interpretation:
Riboflavin is needed or not for the proper functioning of the ETC has to be determined.
Concept introduction:
Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule. There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I: NADH-coenzyme Q reductase.
Complex II: Succinate-coenzyme Q reductase.
Complex III: Coenzyme Q-cytochrome c reductase.
Complex IV: Cytochrome c oxidase.
An overview of the electron transport chain is as follows:
The B-vitamins consist of a group of vitamins that are water soluble and acts as precursors for enzyme cofactors.
(c)
Interpretation:
Folate is needed or not for the proper functioning of the ETC has to be determined.
Concept introduction:
Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule. There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I: NADH-coenzyme Q reductase.
Complex II: Succinate-coenzyme Q reductase.
Complex III: Coenzyme Q-cytochrome c reductase.
Complex IV: Cytochrome c oxidase.
An overview of the electron transport chain is as follows:
The B-vitamins consist of a group of vitamins that are water soluble and acts as precursors for enzyme cofactors.
(d)
Interpretation:
Vitamin B12 is needed or not for the proper functioning of the ETC has to be determined.
Concept introduction:
Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen atoms from the citric acid cycle are transferred to various intermediate carriers and finally reacts with molecular oxygen to form a water molecule. There are four complexes associated with the electron transport chain that is present in the inner mitochondrial membrane. The four complexes that help in the electron transfer in the electron transport chain are:
Complex I: NADH-coenzyme Q reductase.
Complex II: Succinate-coenzyme Q reductase.
Complex III: Coenzyme Q-cytochrome c reductase.
Complex IV: Cytochrome c oxidase.
An overview of the electron transport chain is as follows:
The B-vitamins consist of a group of vitamins that are water soluble and acts as precursors for enzyme cofactors.
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Chapter 12 Solutions
Organic And Biological Chemistry
- Nonearrow_forwardQ1: Draw the most stable and the least stable Newman projections about the C2-C3 bond for each of the following isomers (A-C). Are the barriers to rotation identical for enantiomers A and B? How about the diastereomers (A versus C or B versus C)? H Br H Br (S) CH3 (R) CH3 H3C (S) H3C H Br Br H A C enantiomers H Br H Br (R) CH3 H3C (R) (S) CH3 H3C H Br Br H B D identicalarrow_forward2. Histamine (below structure) is a signal molecule involved in immune response and is a neurotransmitter. Histamine features imidazole ring which is an aromatic heterocycle. Please answer the following questions regarding Histamine. b a HN =N C NH2 a. Determine hybridization of each N atom (s, p, sp, sp², sp³, etc.) in histamine N-a hybridization: N-b hybridization: N-c hybridization: b. Determine what atomic orbitals (s, p, sp, sp², sp³, etc.) of the lone pair of each N atom resided in N-a hybridization: N-b hybridization: N-c hybridization:arrow_forward
- Nonearrow_forward29. Use frontier orbital analysis (HOMO-LUMO interactions) to decide whether the following dimerization is 1) thermally allowed or forbidden and 2) photochemically allowed or forbidden. +arrow_forward30.0 mL of 0.10 mol/L iron sulfate and 20.0 mL of 0.05 mol/L of silver nitrate solutions are mixed together. Justify if any precipitate would formarrow_forward
- Does the carbonyl group first react with the ethylene glycol, in an intermolecular reaction, or with the end alcohol, in an intramolecular reaction, to form a hemiacetal? Why does it react with the alcohol it does first rather than the other one? Please do not use an AI answer.arrow_forwardThe number of noncyclic isomers that have the composition C4H8Owith the O as part of an OH group, counting a pair of stereoisomers as1, is A. 8; B. 6; C. 9; D. 5; E. None of the other answers is correct.arrow_forwardNonearrow_forward
- The number of carbon skeletons that have 8 carbons, one of which istertiary is A. 7; B. More than 7; C. 6; D. 5; E. 4arrow_forwardThe azide ion is N3^-. In addition to the ionic charge, it’s three mostimportant contributing structures also have formal charges. The totalnumber of π bonds in these three contributing structures isA. 6; B. 12; C. 3; D. 9; E. None of the other answers is correct.arrow_forwardThe sum of the numerals in the name of the compoundis A. None of the other answers is correct.; B. 11;C. 6; D. 8; E. 5.arrow_forward
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