Chapter 5 Review

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond formed when atoms share electrons.

Front

Which formula represents an amino acid?

Back

The correct formula representing an amino acid is option c.

Front

What happens to enzymes when they are heated to a high temperature?

Back

The shapes of the enzymes are altered, a process known as denaturation.

Front

What determines the atomic number of an atom?

Back

The atomic number is determined by the number of protons in the nucleus of the atom, not electrons.

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between water molecules and other substances.

Front

What is cohesion in the context of water?

Back

Cohesion is the attraction between water molecules to each other.

Front

What is denaturation?

Back

Denaturation is the process in which proteins lose their structure due to external stress, such as heat.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces against gravity, due to adhesion and cohesion.