Unit 1 AP Biology Insta-Review (Chemistry of Life)

Front

What is the tertiary structure of a protein?

Back

The tertiary structure involves the overall three-dimensional shape of a protein, determined by interactions among the R groups of amino acids.

Front

Which type of amino acid side chain is likely to fold inward in a protein structure?

Back

Hydrophobic side chains tend to fold inward to avoid contact with water.

Front

What is the directionality of a DNA strand?

Back

DNA strands have directionality of 5’ to 3’ and are antiparallel to each other.

Front

Where do hydrophilic side chains typically fold in a polypeptide?

Back

Hydrophilic side chains fold towards the exterior of the polypeptide to interact with the aqueous environment.

Front

Is there a difference in the phosphate group between DNA and RNA?

Back

There is no difference in the phosphate group; both DNA and RNA contain phosphate groups.

Front

What are the building blocks of proteins?

Back

Amino acids are the building blocks of proteins.

Front

What type of bond forms between amino acids in a protein?

Back

Peptide bonds form between amino acids in a protein.

Front

What is the primary structure of a protein?

Back

The primary structure is the linear sequence of amino acids in a polypeptide chain.

Front

What role do hydrogen bonds play in protein structure?

Back

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

Front

What is the difference between hydrophilic and hydrophobic molecules?

Back

Hydrophilic molecules are attracted to water, while hydrophobic molecules repel water.