AP Bio Unit 1 Review

Front

What is hydrolysis?

Back

Hydrolysis is a chemical reaction that involves the breaking down of a compound by the addition of water, often used to break apart polymers into monomers.

Front

What is dehydration synthesis?

Back

Dehydration synthesis is a chemical reaction that involves the joining of two molecules with the removal of water, commonly used to form polymers from monomers.

Front

Define hydrophilic.

Back

Hydrophilic refers to a substance that has an affinity for water; it can interact with water molecules.

Front

Define hydrophobic.

Back

Hydrophobic refers to a substance that repels water; it does not interact well with water molecules.

Front

What is a peptide bond?

Back

A peptide bond is a covalent bond that links two amino acids together, formed through a dehydration synthesis reaction.

Front

What are the three components of a nucleotide?

Back

A nucleotide consists of three components: a sugar, a phosphate group, and a nitrogenous base.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-attracting) 'head' and two hydrophobic (water-repelling) 'tails', forming a bilayer in cell membranes.

Front

What is the function of carbohydrates in living organisms?

Back

Carbohydrates serve as a primary energy source and are also involved in structural functions in cells.

Front

What is the difference between saturated and unsaturated fats?

Back

Saturated fats have no double bonds between carbon atoms, while unsaturated fats contain one or more double bonds, affecting their physical state at room temperature.