Biochem Basics Flashcard Review

Front

What is the charge of an electron?

Back

-1

Front

What type of bond involves the sharing of electrons?

Back

Covalent bond

Front

Why can some insects walk on water?

Back

Because of cohesion.

Front

What type of bond involves the transfer of electrons?

Back

Ionic bond

Front

Why is water considered the universal solvent?

Back

Because it is polar, having a negative end and a positive end.

Front

What is a polar molecule?

Back

A molecule with a partial positive charge on one end and a partial negative charge on the other end.

Front

Define cohesion in the context of water.

Back

Cohesion is the attraction between molecules of the same substance, which in water allows it to form droplets.

Front

Define adhesion in the context of water.

Back

Adhesion is the attraction between molecules of different substances, which allows water to stick to surfaces.

Front

What is an ionic bond?

Back

A bond formed when one atom transfers electrons to another atom, resulting in charged ions.

Front

What is a covalent bond?

Back

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