Protein Structure Quiz

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Questions and Answers

What are the subunits of polypeptides?

Fatty acids
Amino acids (correct)
Carbohydrates
Nucleotides

What is the proteome?

The complete set of lipids expressed by the genome
The complete set of nucleotides expressed by the genome
The complete set of proteins expressed by the genome (correct)
The complete set of carbohydrates expressed by the genome

What is the tertiary level of protein structure?

The folding of the entire polypeptide chain into a 3D structure (correct)
The alpha helices and beta-pleated sheets in a polypeptide chain
The random coils in a polypeptide chain
The linear order of amino acids in a polypeptide chain

Flashcards

Subunits of Polypeptides?

Amino acids are the building blocks that make up polypeptides.

What is the proteome?

The proteome is the entire set of proteins expressed by an organism's genome.

Tertiary Protein Structure

The tertiary structure is the overall three-dimensional shape of a polypeptide, resulting from interactions between the side chains (R groups) of the amino acids.

Study Notes

Proteins are organic compounds made up of amino acids connected by peptide bonds.
Proteins contain C, O, H, N, and sometimes S.
The proteome is the complete set of proteins expressed by the genome.
Proteomics is the study of the proteome.
Amino acids are the subunits of polypeptides.
All 20 amino acids have an amino group, carboxylic acid group, and an R group that varies.
Polypeptide chains are formed by peptide bonds between amino acids.
Protein structure includes primary, secondary, and tertiary levels.
Primary structure is the linear order of amino acids in a polypeptide chain.
Secondary structure includes alpha helices, beta-pleated sheets, and random coils.