AP Biology Unit 1 Review

Front

What is the false statement regarding carbon?

Back

Carbon has the capacity to form polar covalent bonds with hydrogen.

Front

What happens to water molecules when water freezes?

Back

They form a matrix by forming hydrogen bonds and become less dense than water.

Front

What type of macromolecule is represented by proteins?

Back

Proteins are macromolecules made up of amino acids.

Front

What is a key property of enzymes?

Back

They are specific to substrates.

Front

Why are nucleic acids, proteins, and other large biological molecules called polymers?

Back

They contain many small, repeating subunits bonded together.

Front

What type of bond allows carbon to form extensive 'carbon skeletons'?

Back

Covalent bonds.

Front

What is the significance of hydrogen bonds in water?

Back

They contribute to water's unique properties, such as high surface tension and specific heat.

Front

What are the four main types of macromolecules?

Back

Carbohydrates, lipids, proteins, and nucleic acids.

Front

What is the role of enzymes in biological reactions?

Back

They act as catalysts to speed up reactions without being consumed.

Front

What is a characteristic of lipids?

Back

They are hydrophobic and do not mix well with water.