Domanda del libro di testo
Examine the ball-and-stick model of valine below. Identify the carboxyl group, the amino group, and the R group.
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Ch.18 Amino Acids and Proteins
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 18, Problema 1
Alcohol dehydrogenase, found in liver cells, converts ethanol into acetaldehyde. What type of protein is alcohol dehydrogenase?
Guida verificata passo dopo passo1
Understand the role of alcohol dehydrogenase: It is an enzyme that catalyzes the oxidation of ethanol to acetaldehyde in the liver. Enzymes are a specific type of protein that act as biological catalysts.
Recall the definition of a catalyst: A catalyst is a substance that speeds up a chemical reaction without being consumed in the process. Enzymes, as biological catalysts, lower the activation energy required for reactions to occur.
Identify the specific function of alcohol dehydrogenase: It facilitates the conversion of ethanol (C₂H₅OH) into acetaldehyde (CH₃CHO) by removing hydrogen atoms, a process known as oxidation.
Classify alcohol dehydrogenase based on its function: Since it catalyzes a biochemical reaction, it is classified as an enzyme, which is a type of functional protein.
Conclude that alcohol dehydrogenase is a functional protein specifically categorized as an enzyme, which plays a critical role in metabolic pathways involving alcohol processing in the liver.
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Enzymes
Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process. They are typically proteins that lower the activation energy required for reactions, allowing metabolic processes to occur efficiently. Alcohol dehydrogenase is an example of an enzyme that facilitates the conversion of ethanol to acetaldehyde.
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Percorso guidato
2:14
Intro to Enzymes Concept 1
Protein Structure
Proteins are made up of long chains of amino acids that fold into specific three-dimensional shapes, which determine their function. The structure of a protein can be categorized into four levels: primary, secondary, tertiary, and quaternary. The specific folding of alcohol dehydrogenase is crucial for its enzymatic activity in metabolizing alcohol.
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Percorso guidato
3:26Quaternary Protein Structure Concept 1
Metabolism of Alcohol
The metabolism of alcohol involves a series of biochemical reactions that convert ethanol into less toxic substances for elimination from the body. Alcohol dehydrogenase plays a key role in this process by converting ethanol into acetaldehyde, which is further metabolized by other enzymes. Understanding this pathway is essential for grasping the effects of alcohol consumption on the body.
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Percorso guidato
1:10Alcohol Classification Concept 2
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Consult Table 18.3 and draw alanine. Label the functional groups and give the three-letter abbreviation and the one-letter abbreviation. What group does the side chain fall into?
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