Proteins & Amino Acids

The basic building blocks of proteins are:

Which part of an amino acid distinguishes it from other amino acids?

A peptide bond is formed between the:

An amino acid with a nonpolar side chain is:

An amino acid with a negatively charged side chain at physiological pH is:

Which amino acid contains a thiol (-SH) group?

Which amino acid is classified as an imino acid?

In a protein, the amino acids are linked together by

A protein is a polymer of

Which of the following is NOT a function of proteins?

The primary structure of a protein is its:

Which type of bond stabilizes the primary structure of a protein?

Secondary protein structures are stabilized by:

Which of the following is a type of secondary protein structure?

Beta-pleated sheets are characterized by:

A beta-turn is a type of secondary structure that:

The amino acid commonly found in beta-turns is

The overall three-dimensional shape of a protein is its:

A protein domain is:

Which type of interaction is NOT involved in stabilizing tertiary structure?

Hydrophobic interactions in proteins cause nonpolar amino acids to cluster:

The quaternary structure of a protein describes:

Hemoglobin is an example of a protein with:

The process by which a polypeptide chain acquires its functional 3D shape is called:

Proteins that assist in the folding of other proteins are called:

Misfolded proteins can be associated with:

Prion diseases are caused by:

Denaturation of a protein involves the disruption of:

Which of the following is a denaturing agent?

Proteins that are elongated and often have a structural role are classified as:

Keratin and collagen are examples of:

Most enzymes are classified as:

Proteins that catalyze biological reactions are called:

Which of the following is NOT a function of proteins?

Hemoglobin is classified as a:

The process of synthesizing RNA from a DNA template is called:

In transcription, the RNA molecule is synthesized in the:

The DNA strand that has the same sequence as the RNA molecule (except for T instead of U) is the:

In eukaryotes, transcription occurs in the:

Which of the following is a post-transcriptional modification in eukaryotes?

The non-coding sequences within a gene are called:

The addition of a 5' cap and 3' poly-A tail to mRNA in eukaryotes helps with:

The process of synthesizing a polypeptide chain from mRNA is called:

Translation occurs at the:

Each codon on mRNA specifies a particular:

A codon consists of how many nucleotides?

The start codon AUG codes for the amino acid:

Which site on the ribosome does the incoming aminoacyl-tRNA bind?

The enzyme responsible for catalyzing peptide bond formation is located in the ribosome's

The tRNA that carries the growing polypeptide chain is located in which site?

Termination of translation occurs when a stop codon enters the:

The mechanism by which proteins are transported to their correct locations is called:

Proteins synthesized on ribosomes bound to the ER are destined for:

The signal recognition particle (SRP) is involved in targeting proteins to the:

Chemical modifications to a protein after translation are called:

Which of the following is a post-translational modification?

The addition of a carbohydrate group to a protein is called:

Proteolytic cleavage is a post-translational modification that:

A mutation that changes a single nucleotide and results in a different amino acid is a:

Sickle cell anemia is caused by a mutation in the gene for:

The basic building blocks of proteins are:

Which part of an amino acid distinguishes it from other amino acids?

A peptide bond is formed between the:

An amino acid with a nonpolar side chain is:

An amino acid with a negatively charged side chain at physiological pH is:

Which amino acid contains a thiol (-SH) group?

Which amino acid is classified as an imino acid?

In a protein, the amino acids are linked together by:

A protein is a polymer of:

Which of the following is NOT a function of proteins? ______

The primary structure of a protein is its:

Which type of bond stabilizes the primary structure of a protein?

Secondary protein structures are stabilized by:

Which of the following is a type of secondary protein structure?

Beta-pleated sheets are characterized by:

A beta-turn is a type of secondary structure that:

The amino acid commonly found in beta-turns is:

The overall three-dimensional shape of a protein is its:

A protein domain is:

Which type of interaction is NOT involved in stabilizing tertiary structure?

Hydrophobic interactions in proteins cause nonpolar amino acids to cluster:

The quaternary structure of a protein describes:

Hemoglobin is an example of a protein with:

The process by which a polypeptide chain acquires its functional 3D shape is called:

Proteins that assist in the folding of other proteins are called:

Misfolded proteins can be associated with:

Prion diseases are caused by:

Denaturation of a protein involves the disruption of:

Which of the following is a denaturing agent?

Proteins that are elongated and often have a structural role are classified as:

Keratin and collagen are examples of:

Most enzymes are classified as:

Proteins that catalyze biological reactions are called:

Which of the following is NOT a function of proteins? ______

Hemoglobin is classified as a:

The process of synthesizing RNA from a DNA template is called:

In transcription, the RNA molecule is synthesized in the:

The DNA strand that has the same sequence as the RNA molecule (except for T instead of U) is the:

In eukaryotes, transcription occurs in the:

Which of the following is a post-transcriptional modification in eukaryotes?

The non-coding sequences within a gene are called:

The addition of a 5' cap and 3' poly-A tail to mRNA in eukaryotes helps with:

The process of synthesizing a polypeptide chain from mRNA is called:

Translation occurs at the:

Each codon on mRNA specifies a particular:

A codon consists of how many nucleotides? _____

The start codon AUG codes for the amino acid:

Which site on the ribosome does the incoming aminoacyl-tRNA bind? _____

The enzyme responsible for catalyzing peptide bond formation is located in the ribosome's _____

The tRNA that carries the growing polypeptide chain is located in which site? _____

Termination of translation occurs when a stop codon enters the: _____

The mechanism by which proteins are transported to their correct locations is called:

Proteins synthesized on ribosomes bound to the ER are destined for:

The signal recognition particle (SRP) is involved in targeting proteins to the:

Chemical modifications to a protein after translation are called:

Which of the following is a post-translational modification?

The addition of a carbohydrate group to a protein is called:

Proteolytic cleavage is a post-translational modification that:

A mutation that changes a single nucleotide and results in a different amino acid is a:

Sickle cell anemia is caused by a mutation in the gene for: