97 cards
Amide bonds are rigid because of ____.
Breaking a peptide bond is a ____ reaction.
____ in amino acids is the linear sequence of amino acids in a peptide.
Primary structure in amino acids is ____.
Primary structure is stabilized by ____.
____ structure is stabilized by peptide bonds.
____ structure is the local structure of neighboring amino acids.
Secondary structure is ____.
____ structure is stabilized by hydrogen bonding between amino groups and nonadjacent carboxyl groups.
Secondary structure is stabilized by ____.
α - helices are c____oils around a central axis.
____ are clockwise coils around a central axis.
____ are rippled strands that can be parallel or antiparallel.
β - pleated sheets are ____.
____ can interrupt secondary structure because of its rigid cyclic structure.
Proline can interrupt s____tructure because of its rigid cyclic structure.
Proline can interrupt secondary structure because of ____.
____ structure is the three-dimensional shape of a single polypeptide chain.
Tertiary structure is ____.
____ structure is stabilized by hydrophobic interactions, acid–base interactions (salt bridges), hydrogen bonding, and disulfide bonds.
Tertiary structure is stabilized by ____.
____ push hydrophobic R groups to the interior of a protein.
Hydrophobic interactions ____
Hydrophobic interactions between amino acids ____ Gibbs free energy.
Hydrophobic interactions between amino acids increases ____.
Disulfide bonds occur when two cysteine molecules are oxidized and create a covalent bond to form ____.
Disulfide bonds occur when two ____ molecules are oxidized and create a covalent bond to form cystine.
____ occur when two cysteine molecules are oxidized and create a covalent bond to form cystine.
Disulfide bonds occur when two cysteine molecules are ____ and create a covalent bond to form cystine.
____ structure is the interaction between peptides in proteins that contain multiple subunits.
Quaternary structure is ____.
Proteins with covalently attached molecules are termed ____.
Proteins with ____ are termed conjugated proteins.
The attached molecule to conjugated proteins is a ____, and may be a metal ion, vitamin, lipid, carbohydrate, or nucleic acid.
The attached molecule to conjugated proteins is a prosthetic group, and may be a ____.
The attached molecule to ____ proteins is a prosthetic group, and may be a metal ion, vitamin, lipid, carbohydrate, or nucleic acid.
Both ____ can lead to loss of three-dimensional protein structure.