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Questions and Answers
What structure is Alanine?
What structure is Alanine?
Alanine structure
What structure is Valine?
What structure is Valine?
Valine structure
What structure is Isoleucine?
What structure is Isoleucine?
Isoleucine structure
What structure is Leucine?
What structure is Leucine?
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What structure is Methionine?
What structure is Methionine?
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What structure is Tyrosine?
What structure is Tyrosine?
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What structure is Tryptophan?
What structure is Tryptophan?
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What structure is Phenylalanine?
What structure is Phenylalanine?
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What structure is Aspartate?
What structure is Aspartate?
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What structure is Glutamate?
What structure is Glutamate?
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What two amino acids are acidic?
What two amino acids are acidic?
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What structure is Lysine?
What structure is Lysine?
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What structure is Arginine?
What structure is Arginine?
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What structure is Histidine?
What structure is Histidine?
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What three amino acids are basic?
What three amino acids are basic?
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What two amino acids are polar, not charged, and have hydroxyl groups?
What two amino acids are polar, not charged, and have hydroxyl groups?
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What two amino acids are polar, not charged, and have carboxyamide groups?
What two amino acids are polar, not charged, and have carboxyamide groups?
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What structure is Serine?
What structure is Serine?
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What structure is Threonine?
What structure is Threonine?
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What structure is Asparagine?
What structure is Asparagine?
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What structure is Glutamine?
What structure is Glutamine?
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What structure is Cysteine?
What structure is Cysteine?
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What amino acid has disulfide bonds and is mostly found in extracellular proteins?
What amino acid has disulfide bonds and is mostly found in extracellular proteins?
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What structure is Glycine?
What structure is Glycine?
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What amino acid can fit in tight places?
What amino acid can fit in tight places?
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What structure is Proline?
What structure is Proline?
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What is the imino acid?
What is the imino acid?
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What four amino acids are polar with uncharged R groups?
What four amino acids are polar with uncharged R groups?
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Histidine can shift between positively charged and not charged depending on what?
Histidine can shift between positively charged and not charged depending on what?
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Hydrophobic amino acids tend to be located where in proteins?
Hydrophobic amino acids tend to be located where in proteins?
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Acidic amino acids have R groups that are what charge?
Acidic amino acids have R groups that are what charge?
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Basic amino acids have R groups that are what charge?
Basic amino acids have R groups that are what charge?
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What are the nine nonpolar hydrophobic amino acids?
What are the nine nonpolar hydrophobic amino acids?
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What are the six polar hydrophilic amino acids?
What are the six polar hydrophilic amino acids?
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Are the basic and acidic amino acids considered hydrophilic?
Are the basic and acidic amino acids considered hydrophilic?
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What hydrophobic amino acid is the exception and could interact with water?
What hydrophobic amino acid is the exception and could interact with water?
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Study Notes
Amino Acid Characteristics
- Alanine: Nonpolar, aliphatic amino acid.
- Valine: Nonpolar, branched-chain amino acid, hydrophobic.
- Isoleucine: Nonpolar, branched-chain amino acid with hydrophobic properties.
- Leucine: Nonpolar, branched-chain amino acid crucial for protein synthesis.
- Methionine: Contains a sulfur atom, nonpolar, initiates protein synthesis.
- Tyrosine: Polar, can engage in hydrogen bonding; derived from phenylalanine.
- Tryptophan: Nonpolar, precursors to serotonin, has aromatic structure.
- Phenylalanine: Aromatic, nonpolar; needed for synthesizing tyrosine.
- Aspartate: Acidic, negatively charged side chain; involved in metabolic pathways.
- Glutamate: Acidic, important neurotransmitter in the brain, negatively charged.
- Acidic Amino Acids: Aspartate and Glutamate, known for their negatively charged R groups.
- Lysine: Basic, positively charged side chain; involved in protein interaction.
- Arginine: Basic, can donate protons; involved in metabolic functions.
- Histidine: Basic, can switch between charged and uncharged states, vital for enzyme activity.
Polar Amino Acids
- Serine: Polar, contains hydroxyl group; contributes to hydrogen bonds.
- Threonine: Similar to serine, has a hydroxyl group; polar and hydrophilic.
- Asparagine: Polar, possesses a carboxyamide group; involved in hydrogen bonding.
- Glutamine: Similar to asparagine, polar with carboxyamide group; important for nitrogen transport.
- Cysteine: Contains a thiol group, can form disulfide bonds, stabilizing protein structure.
Other Amino Acid Features
- Glycine: Simplest amino acid, fits into tight spaces within proteins due to its small size.
- Proline: Unique imino acid, introduces rigidity in protein structure; often found in turns.
- Hydrophobic Amino Acids: Tend to be buried inside proteins to avoid contact with water (e.g., Glycine, Alanine, Methionine).
- Polar Amino Acids: Include Serine, Threonine, Asparagine, Glutamine, and Cysteine; facilitate hydrogen bonding.
Charge Characteristics
- Acidic Amino Acids: Exhibit negatively charged side chains.
- Basic Amino Acids: Feature positively charged side chains, crucial for interactions with negatively charged groups.
Unique Properties
- Histidine: Unique ability to switch charge based on local pH; involved in enzyme catalysis and protein function.
- Tyrosine: Exceptionally hydrophobic amino acid that can still interact with water due to its hydroxyl group.
Common Groupings
- Nonpolar Hydrophobic Amino Acids: Include Glycine, Alanine, Leucine, Isoleucine, Valine, Proline, Tryptophan, Phenylalanine, Methionine.
- Polar Hydrophilic Amino Acids: Include Serine, Threonine, Tyrosine, Asparagine, Glutamine, Cysteine.
General Knowledge
- Hydrophilic Amino Acids: Basic and acidic amino acids are considered hydrophilic due to their charge properties.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of amino acids by identifying their structures in this interactive quiz. Each flashcard presents a different amino acid including alanine, valine, isoleucine, and more. Perfect for students studying biochemistry or molecular biology.
