Practice Link CH 2: Chemistry C4U

Front

What is the attraction between molecules of different substances called?

Back

Adhesion

Front

What is the attraction between molecules of the same substance called?

Back

Cohesion

Front

What type of molecule is composed of carbon, hydrogen, and oxygen and includes fats, oils, and waxes?

Back

Lipid

Front

What is the monomer (building block) for nucleic acids?

Back

Nucleotides

Front

What characterizes a polar molecule?

Back

A polar molecule is caused by the unequal sharing of electrons, causing one side to have a partial positive charge and the other side to have a partial negative charge.

Front

What is cohesion in the context of chemistry?

Back

Cohesion refers to the attraction between molecules of the same substance, which helps maintain the structure of liquids.

Front

What is adhesion in the context of chemistry?

Back

Adhesion refers to the attraction between molecules of different substances, which allows liquids to spread on surfaces.

Front

What are lipids primarily used for in biological systems?

Back

Lipids are used for energy storage, insulation, and making up cell membranes.

Front

What are the four main types of macromolecules in biology?

Back

Carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the role of nucleotides in nucleic acids?

Back

Nucleotides serve as the building blocks of nucleic acids, such as DNA and RNA.