11 Vocabulary Enforcer AP Biology

Front

What is the definition of amphipathic?

Back

A kind of molecule that has a hydrophilic region and a hydrophobic region.

Front

What is the definition of the second law of thermodynamics?

Back

Every energy transfer or transformation increases the entropy of the universe.

Front

What is the definition of an inhibitor?

Back

A molecule that blocks the action of an enzyme.

Front

What is the definition of a base?

Back

A substance that reduces the hydrogen ion concentration of a solution.

Front

What is the definition of an amino acid?

Back

A unit of proteins.

Front

What is the role of hydrophilic channel proteins in a cell membrane?

Back

They allow the passage of water molecules through the membrane.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is diffusion?

Back

The net movement of particles from an area of high concentration to an area of lower concentration.

Front

What is the significance of entropy in thermodynamics?

Back

It measures the degree of disorder or randomness in a system.

Front

What is a substrate in enzymatic reactions?

Back

The reactant molecule that an enzyme acts upon.