AP Biology - Unit 1 Review

Front

What allows a water strider to skate along the top of a pond?

Back

Hydrogen bonds result in water cohesion (surface tension).

Front

What gives a protein its unique shape?

Back

The unique sequence of amino acids in its polypeptide chain, the unique folding due to the sequence of amino acids in the polypeptide chain, and hydrogen bonding & unique interactions between the 'R' groups.

Front

What primarily causes the tertiary structure folding in proteins?

Back

The interactions of the 'R' groups.

Front

Which part of the amino acid structure changes among the 20 different amino acids?

Back

The 'R' group.

Front

Where would you find hydrophobic amino acids in a protein structure?

Back

In the interior of the protein, away from water.

Front

What is the role of hydrogen bonds in water?

Back

Hydrogen bonds create cohesion and surface tension in water.

Front

Define cohesion in the context of water molecules.

Back

Cohesion is the attraction between water molecules due to hydrogen bonding.

Front

What is the primary structure of a protein?

Back

The unique sequence of amino acids in a polypeptide chain.

Front

How does the sequence of amino acids affect protein folding?

Back

The sequence determines how the protein folds into its three-dimensional shape.

Front

What is the significance of the 'R' group in amino acids?

Back

The 'R' group determines the properties and functions of the amino acid.