I. Vocabulary Matching Match the term in the box to the correct definition. __ Composed of amino acids connected by peptide bonds 2 __ A very large molecule created by combining smaller molecules 3. __ Contains hydrogen, carbon, and oxygen in a 1:2:1 ratio and is used as a primary energy source 4. __ Composed of glycerol and fatty acids that is hydrophobic 5. __ Composed of nucleotides and carries the genetic information of an organism A. Carbohydrate B. Protein C. Lipid D. Nucleic acid E. Macromolecule

## Step 1<br />The first term is "Composed of amino acids connected by peptide bonds". This is the definition of a Protein. Proteins are composed of amino acids that are connected by peptide bonds.<br /><br />## Step 2<br />The second term is "A very large molecule created by combining smaller molecules". This is the definition of a Macromolecule. Macromolecules are large molecules composed of smaller structural units connected by covalent bonds.<br /><br />## Step 3<br />The third term is "Contains hydrogen, carbon, and oxygen in a 1:2:1 ratio and is used as a primary energy source". This is the definition of a Carbohydrate. Carbohydrates are composed of carbon, hydrogen, and oxygen atoms, usually in a 1:2:1 ratio.<br /><br />## Step 4<br />The fourth term is "Composed of glycerol and fatty acids that is hydrophobic". This is the Lipids are composed of glycerol and fatty acids and are hydrophobic.<br /><br />## Step 5<br />The fifth term is "Composed of nucleotides and carries the genetic information of an organism". This is the definition of a Nucleic acid. Nucleic acids are composed of nucleotides and carry the genetic information of an organism.