Organic Chemistry (Loose) -With Access
7th Edition
ISBN: 9780321933805
Author: Bruice
Publisher: PEARSON
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Question
Chapter 24.5, Problem 12P
(a)
Interpretation Introduction
Interpretation:
Formation of product of amino acid when
Concept introduction:
In an enzyme – catalysed reaction that requires coenzymes
(b)
Interpretation Introduction
Interpretation:
Formation of product of amino acid when
Concept introduction:
In an enzyme – catalysed reaction that requires coenzymes, a group bonded to one carbon changes places with a hydrogen bonded to an adjacent carbon.
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Chapter 24 Solutions
Organic Chemistry (Loose) -With Access
Ch. 24.1 - Prob. 2PCh. 24.1 - Prob. 3PCh. 24.2 - How many conjugated double bonds are there in a....Ch. 24.2 - Instead of adding to the 4a position and...Ch. 24.2 - Prob. 7PCh. 24.3 - Prob. 8PCh. 24.3 - Acetolactate synthase is another TPP-requiring...Ch. 24.3 - Acetolactate synthase transfers the acyl group of...Ch. 24.5 - Prob. 12PCh. 24.5 - The enzyme that catalyzes the C C bond cleavage...
Ch. 24.5 - Propose a mechanism for the ,-elimination reaction...Ch. 24.5 - Which compound is more easily decarboxylated?Ch. 24.5 - Explain why the ability of PLP to catalyze an...Ch. 24.5 - Explain why the ability of PLP to catalyze an...Ch. 24.6 - Ethanolamine ammonia lyase, a coenzyme...Ch. 24.6 - Prob. 19PCh. 24.7 - How do the structure of tetrahydrofolate and...Ch. 24.7 - What is the source of the methyl group in...Ch. 24.8 - Thiols such as ethanethiol and propanethiol can be...Ch. 24 - How does the metal ion in carboxypeptidase A...Ch. 24 - Prob. 23PCh. 24 - Prob. 24PCh. 24 - Prob. 25PCh. 24 - S-Adenosylmethionine (SAM) is formed from the...Ch. 24 - Prob. 27PCh. 24 - What acyl groups have we seen transferred by...Ch. 24 - Propose a mechanism for the following reaction:Ch. 24 - When transaminated, the three branched-chain amino...Ch. 24 - Draw the products of the following reaction, where...Ch. 24 - When UMP is dissolved in T2O, exchange of T for H...Ch. 24 - Dehydratase is a PLP-requiring enzyme that...Ch. 24 - In addition to the reaction mentioned in Section...Ch. 24 - PLP can catalyze both ,-elimination reactions...Ch. 24 - The glycine cleavage system is a group of four...Ch. 24 - Prob. 37PCh. 24 - FADH2 reduces , -unsaturated thioesters to...
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- How does the direct oxidative deamination of L-amino acids different from glutamate occur? 1) the oxidases act together with FMN 2) the oxidases act together with NAD 3) the released hydrogen enters the respiratory chain 4) the released hydrogen is transferred onto oxygen and hydrogen peroxide is formed 5) the obtained products are biogenic amines a) 2+4 b) 1+3 c) 1+4 d) 2+3 e) 4+5arrow_forwardWhat aldehydes are formed when the following amino acids are treated with ninhydrin? a. tyrosine b. leucine c. argininearrow_forwarddraw the structure of glutamic acid/glutamate at a pH of 5.arrow_forward
- What a-halo carbonyl compound is needed to synthesize each amino acid: (a) glycine; (b) isoleucine; (c) phenylalanine?arrow_forwardExplain how α-tocopherol and ascorbate work together in suppressing the oxidation of polyunsaturated fatty acids (PUFAs).arrow_forwardConsider the decapeptide angiotensin I. What products are formed when angiotensin I is treated withchymotrypsin?arrow_forward
- Draw the structure of the predominant form of ) proline at pH 2arrow_forwardAlthough only l-amino acids occur in proteins, d-amino acids are often a part of the metabolism of lower organisms. The antibiotic actinomycin D, for example, contains a unit of d-valine, and the antibiotic bacitracin A contains units of d-asparagine and d-glutamic acid. Draw Fischer projections and three-dimensional representations for these three d-amino acids.arrow_forwardWhat are the hormones formed from the precursor cholesterol? Give at least five.arrow_forward
- What are the alpha-amino acids (AA1, AA2, AA3) needed to complete the following synthesis?arrow_forwardAnswer the following questions about the amino acid whose Fischer projection formula is a. Is it a D-amino acid or an L-amino acid? b. Is it a nonpolar or polar amino acid? c. Is it an essential or nonessential amino acid? d. Is it a standard or nonstandard amino acid?arrow_forwardIndicate whether each of the following statements concerning bile acids is true or false. a. Both glycocholic acid and 7-deoxycholic acid are simple bile acidic b. Both glycocholic acid and taurocholic acid contain the element nitrogen. c. Both taurocholic acid and glycocholic acid contain an amino acid attachment. d. Both 12-dcoxycholic acid and taurocholic acid contain hydroxyl functional groups.arrow_forward
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