An enzyme is a type of [blank] that is made of [blank] .

Carb
Lipid
Protein
Nucleic acid

Protein

An enzyme is a type of protein that is made of amino acids.

An enzyme is a type of [blank] that is made of [protein].

To determine the answer, we need to understand the nature of enzymes and their composition.

Enzymes are biological catalysts that facilitate chemical reactions in living organisms. They play a crucial role in speeding up the rate of reactions by lowering the activation energy required for the reaction to occur. Enzymes are highly specific, meaning that each enzyme is designed to catalyze a particular reaction or a group of closely related reactions.

In terms of their composition, enzymes are primarily made up of proteins. Proteins are large, complex molecules composed of amino acids. Amino acids are organic compounds that contain a central carbon atom bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain (referred to as the R-group). The sequence and arrangement of amino acids determine the structure and function of a protein. Enzymes have a unique three-dimensional structure that allows them to bind to specific substrates and facilitate chemical reactions.

Therefore, the correct answer is [protein].