Biology Keystone Exam Review

Front

What distinguishes proteins from carbohydrates in terms of functional characteristics?

Back

Proteins have the ability to catalyze biochemical reactions.

Front

What does heterozygous mean?

Back

An organism that has different genes for a trait (Tt).

Front

What is a peptide bond?

Back

A bond that holds two amino acids together.

Front

During which phase of the meiotic cell cycle does DNA replication occur?

Back

Interphase.

Front

What type of macromolecule are enzymes?

Back

Proteins.

Front

What are macromolecules?

Back

Large complex molecules, including carbohydrates, proteins, lipids, and nucleic acids.

Front

What is the primary function of carbohydrates?

Back

To provide and store energy.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts to speed up chemical reactions.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous has the same genes for a trait (TT or tt), while heterozygous has different genes (Tt).

Front

What are the four main types of macromolecules?

Back

Carbohydrates, proteins, lipids, and nucleic acids.