Bio Unit 2 Review

Front

What is quaternary structure in proteins?

Back

The structure formed by multiple polypeptide subunits coming together, held together by hydrophobic interactions and hydrogen bonds.

Front

What is the universal genetic code that all life is based on?

Back

DNA

Front

What reaction does the peroxidase enzyme catalyze?

Back

Breaking down hydrogen peroxide to form oxygen and water.

Front

What is tertiary structure in proteins?

Back

The overall three-dimensional shape of a single polypeptide strand, stabilized by hydrogen bonds, ionic bonds, hydrophobic interactions, and covalent disulfide bonds.

Front

What is an enzyme?

Back

A molecule (usually a protein) that can speed up chemical reactions by lowering the activation energy required by the reaction.

Front

What are alpha helices and beta pleated sheets?

Back

They are types of secondary structures in proteins formed by localized folding held together by hydrogen bonds.

Front

What is the role of hydrogen bonds in protein structure?

Back

Hydrogen bonds help stabilize the secondary, tertiary, and quaternary structures of proteins.

Front

What is the primary structure of a protein?

Back

The order of amino acids joined together by covalent peptide bonds, specified by a gene.

Front

What is the function of the enzyme lactase?

Back

Breaking lactose down to glucose and galactose.

Front

What is the significance of the double helix structure of DNA?

Back

It allows for the stable storage of genetic information and the ability to replicate.