AP Biology Unit 1 Review

Front

What is the monomer of nucleic acids?

Back

Nucleotides are the monomers that make up nucleic acids, such as DNA and RNA.

Front

Is the statement 'Surface tension of water is the cohesive force between water molecules and other molecules' true or false?

Back

False. Surface tension is the cohesive force between water molecules themselves.

Front

Identify the macromolecule: What is the primary function of proteins?

Back

Proteins serve various functions including catalyzing biochemical reactions (enzymes), providing structure, and facilitating transport.

Front

What functional group is -OH?

Back

The -OH group is known as the Hydroxyl group, which is characteristic of alcohols.

Front

Which end of the water molecule has a slightly positive charge?

Back

The hydrogen end of the water molecule has a slightly positive charge.

Front

What are the four main types of macromolecules?

Back

The four main types of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the primary function of carbohydrates?

Back

Carbohydrates primarily serve as a source of energy and structural support in cells.

Front

Define hydrophilic and hydrophobic. What is the difference?

Back

Hydrophilic substances are attracted to water, while hydrophobic substances repel water.

Front

What is the role of enzymes in biological reactions?

Back

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

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.