교과서 질문
In myoglobin, about one-half of the 153 amino acids have nonpolar R groups.
b. Where would you expect the polar R groups to be in the tertiary structure?
749
views
Ch.16 Amino Acids, Proteins, and Enzymes
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
당신이 사용하는 게 아니라요?교과서 변경다른 교과서를 선택하세요
TOC.tableOfContents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249당신이 사용하는 게 아니라요?교과서 변경
16장, 문제 25c
Indicate whether each of the following statements describes primary, secondary, tertiary, or quaternary protein structure:
c. Several polypeptides in a beta-pleated sheet are held together by hydrogen bonds between adjacent chains.
검증된 단계별 안내1
Understand the four levels of protein structure: Primary structure refers to the sequence of amino acids in a polypeptide chain. Secondary structure involves local folding patterns such as alpha-helices and beta-pleated sheets, stabilized by hydrogen bonds. Tertiary structure describes the overall 3D shape of a single polypeptide chain, including interactions like ionic bonds, hydrophobic interactions, and disulfide bridges. Quaternary structure refers to the arrangement of multiple polypeptide chains into a functional protein complex.
Analyze the statement: 'Several polypeptides in a beta-pleated sheet are held together by hydrogen bonds between adjacent chains.' This description involves multiple polypeptide chains interacting with each other.
Recognize that beta-pleated sheets are a feature of secondary structure, but the involvement of multiple polypeptide chains interacting through hydrogen bonds indicates a higher level of organization.
Determine that the interaction of multiple polypeptide chains corresponds to quaternary structure, as this level of structure describes how individual polypeptides assemble into a larger functional complex.
Conclude that the statement describes quaternary protein structure because it involves several polypeptides held together by hydrogen bonds, forming a functional arrangement.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
4m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Protein Structure Levels
Proteins have four levels of structure: primary, secondary, tertiary, and quaternary. Primary structure refers to the linear sequence of amino acids. Secondary structure involves local folding patterns, such as alpha helices and beta-pleated sheets. Tertiary structure is the overall 3D shape of a single polypeptide, while quaternary structure describes the assembly of multiple polypeptide chains into a functional protein.
추천 영상:
가이드 코스
2:56
Summary of Protein Structure Concept 1
Beta-Pleated Sheet
The beta-pleated sheet is a common type of secondary protein structure characterized by strands of amino acids lying alongside each other, forming a sheet-like arrangement. These strands are stabilized by hydrogen bonds between the backbone amide and carbonyl groups of adjacent polypeptides, contributing to the protein's overall stability and functionality.
추천 영상:
가이드 코스
2:42Beta-Pleated Sheet Concept 4
Hydrogen Bonds in Proteins
Hydrogen bonds are weak interactions that play a crucial role in stabilizing protein structures. In the context of quaternary structure, hydrogen bonds between different polypeptide chains help maintain the integrity of the protein complex. These bonds are essential for the formation of structures like beta-pleated sheets, influencing the protein's shape and biological activity.
추천 영상:
가이드 코스
1:22Hydrogenation Reactions Concept 1
관련 실천
교과서 질문
Indicate whether each of the following statements describes primary, secondary, tertiary, or quaternary protein structure:
b. Protein chains of collagen form a triple helix.
624
views
교과서 질문
Indicate the changes in secondary and tertiary structural levels of proteins for each of the following:
c. To avoid spoilage, seeds are treated with a solution of HgCl2.
550
views
교과서 질문
A portion of a polypeptide chain contains the following sequence of amino acids:
—Leu—Val—Cys—Asp—
c. How does the primary structure of a protein affect its tertiary structure?
636
views
교과서 질문
Indicate the changes in secondary and tertiary structural levels of proteins for each of the following:
b. Prior to giving an injection, the skin is wiped with an alcohol swab.
631
views
교과서 질문
In myoglobin, about one-half of the 153 amino acids have nonpolar R groups.
a. Where would you expect those amino acids to be located in the tertiary structure?
699
views