AP Bio Unit 1 Review

Front

What type of bond forms when the difference in electronegativity between the atoms is large?

Back

Ionic bond: A bond formed when one atom donates an electron to another due to a significant difference in electronegativity.

Front

What property of water allows it to stick to other water molecules?

Back

Cohesion: The attraction between molecules of the same substance, which in water is due to hydrogen bonding.

Front

What element do nucleic acids contain more of than other macromolecules?

Back

Phosphorous: Nucleic acids, such as DNA and RNA, contain a phosphate group, which includes phosphorous.

Front

What is the process of attaching monomers together through the removal of water called?

Back

Dehydration synthesis: A chemical reaction that involves the loss of a water molecule to form a bond between monomers.

Front

What is the process of breaking down polymers by adding water called?

Back

Hydrolysis: A chemical reaction that involves the addition of water to break bonds in polymers.

Front

What type of bond is formed when two atoms share electrons?

Back

Covalent bond: A bond formed when two atoms share one or more pairs of electrons.

Front

What is the term for the attraction between different substances, such as water and a plant cell wall?

Back

Adhesion: The attraction between different types of molecules.

Front

What is the primary function of nucleic acids?

Back

To store and transmit genetic information: Nucleic acids like DNA and RNA are responsible for carrying genetic instructions.

Front

What is the pH range of neutral solutions?

Back

pH 7: A neutral solution has a pH of 7, indicating a balance between hydrogen ions (H+) and hydroxide ions (OH-).

Front

What is the term for the amount of energy required to raise the temperature of a substance?

Back

Specific heat: The amount of heat needed to increase the temperature of a unit mass of a substance by one degree Celsius.