Building Blocks
Structures
Food Functions
Cooking Protein
In the Body
100

The building blocks of proteins. 

What are amino acids?

100

The bond that holds amino acids together. 

What are peptide bonds?

100

A stable mixture of fat and a water-based liquid. 

What is an emulsion?

100

A common problem when cooking milk when acid or heat causes casein molecules to unfold and stick together. 

What is curdling?

100

Proteins provide this much energy per gram. 

What is 4 kcal/g?

200

The number of amino acids found in the human body.

What is 20?
200
The bond formed between peptide bonds to create secondary and tertiary protein structures. 

What are hydrogen bonds?

200

A mixture of fluids locked in a three-dimensional mesh, made of denatured and coagulated proteins. 

What is a protein gel?

200

A problem when cooking milk that occurs when protein clumps formed by heat sink and burn in the bottom of the pan. It can be prevented by stirring. 

What is scorching?

200

A substance that can resist a change in pH. 

What is a buffer?

300

The term given for an amino acid that the human body cannot make, so we must ingest it. There are 9. 

What is essential?

300
Any change of the shape of a protein molecule without breaking peptide bonds. 

What is denaturation?

300

Examples include meringue, marshmallows, and whipped cream. Albumin (egg whites) make a good agent for this.

What is a protein foam?

300

A protein connective tissue that must be cooked in moist heat to soften it into gelatin. 

What is collagen?

300

Proteins designed to attack foreign substances in the body.

What are antibodies?

400

A food that contains all essential amino acids. 

What is a complete protein?

400

Results when a liquid protein (like caseins in milk) form solid clots

What is coagulation?

400

The protein found naturally in wheat that gives bread its stretch. 

What is gluten?

400

Occurs between proteins and carbohydrates that causes food to brown when cooked. 

What is the Maillard reaction?

400

Proteins act as buffers in the blood to maintain a pH of this range. 

What is 7.3-7.6?

500

Multiple amino acids in a chain. 

What is a polypeptide?

500

Covalent bonds that form between protein molecules at sulfur-containing side chains. 

What are disulfide cross-links?

500

The denaturation method to develop gluten in bread. 

What is mechanical denaturation?

What is kneading, beating, rolling?

500

The three categories of proteins found in most meats. 

What is muscle fibers, connective tissue, and myoglobin?

500

Proteins control bodily functions by being a part of these two substances. 

What are hormones and enzymes?

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