Unit 1 AP Biology

Front

What property of water allows it to form droplets and enables skipping rocks on a pond?

Back

Cohesion: The attraction between water molecules due to hydrogen bonding, which allows them to stick together.

Front

What type of bond is formed between the hydrogen and oxygen atoms within a water molecule?

Back

Covalent Bond: A chemical bond that involves the sharing of electron pairs between atoms.

Front

What two properties of water work together to help water move up the stem of a plant?

Back

Adhesion and Cohesion: Adhesion allows water to stick to the plant's xylem, while cohesion keeps water molecules together.

Front

What is the process called that involves the removal of water molecules to form bonds?

Back

Dehydration: A chemical reaction that involves the loss of water from the reacting molecule.

Front

What level of protein structure involves the bonding between two or more polypeptide chains?

Back

Quaternary Structure: The highest level of protein structure, formed by the assembly of multiple polypeptide chains.

Front

What is the term for the attraction between water molecules and other substances?

Back

Adhesion: The tendency of water molecules to stick to other surfaces.

Front

What property of water helps to stabilize temperature in organisms?

Back

Specific Heat: Water has a high specific heat, meaning it can absorb a lot of heat before its temperature changes.

Front

What is the term for the phenomenon where water molecules at the surface create a 'skin' that allows small objects to float?

Back

Surface Tension: The cohesive force at the surface of a liquid that makes it behave like a stretched elastic membrane.

Front

What type of bond is responsible for the attraction between water molecules?

Back

Hydrogen Bond: A weak bond formed between a hydrogen atom and an electronegative atom, such as oxygen.

Front

What is the term for the process of breaking down molecules by adding water?

Back

Hydrolysis: A chemical reaction that involves the breaking of a bond in a molecule using water.