Kitchen Chemistry Final Exam

Emulsions, colloids, and foams

100

This is an example of an emulsion.

What is mayonnaise, a merengue (suspiro), salad dressing... and many others!

200

This is the name for the process of changing a protein's shape through heat, pH, or other methods.

What is denaturing?

300

This is an example of a colloid.

Answers could include: milk, butter, clouds, mayonnaise... and much more! 

400

This is an example of something that is NOT a colloid.

Answers will vary. Anything that is dissolved in something else, is an uneven mixture, or is a pure substance could work.

500

This type of substance allows for emulsions to be created between hydrophobic and hydrophilic substances.

What is an amphipathic substance?

Macromolecules and pH

100

This is the name for a single part of a polymer chain.

What is a monomer?

200

This is the name for anything with a pH higher than 7.

What is alkaline or basic?

300

This is an example of an acidic food.

Answers will vary. They include lemon juice, vinegar, cream of tartar, yogurt, and basically anything tart.

400

This type of macromolecule is a good insulator and is a part of all cell membranes.

What is fat/lipids?

500

This is one macromolecule and the monomer that makes up its structure.

Examples include:

Protein - amino acid

Carbohydrate - monosaccharide

Nucleic acid - nucleotide

Note: Fats/lipids are NOT a polymer.

Digestion and Nutrition

100

This is an example of a micronutrient.

What is a vitamin or mineral?

200

These types of nutrients persist in the body for a long time and do not need to be eaten daily.

What are fat-soluble vitamins?

300

This is where the majority of nutrients are absorbed in the digestion of both cows and humans.

What is the small intestine?

400

These are the names of all three macronutrients.

What are fats, carbohydrates, and proteins?

500

This is the name of two accessory organs in digestion (the organs food does NOT pass through) and what their functions are.

Salivary glands - makes enzymes that break down carbohydrates

Pancreas - makes enzymes that break down proteins

Liver - filters blood, makes bile which breaks down fats

Gall bladder - stores bile to break down fats

Appendix - stores helpful bacteria 

Chemical formulas and names

100

What is the name of LiBr?

Lithium bromide

200

What is the name of Ca₃N₂?

Calcium nitride

300

What is the formula for potassium oxide?

K₂O

400

What is the formula for aluminum sulfide?

Al₂S₃

500

What is the formula for strontium carbide?

Sr₂C

Notes and Errata

100

This is Lewis's middle name.

What is David?

200

This is one characteristic of music from the romantic era of classical music.

What are longer melodies, more use of different dynamics, more chaotic/unstructured harmonies, and intense passion?

300

This is how we define a dietary calorie.

What is the amount of energy required to heat 1 liter of water 1 degree Celsius?

400

These are the names of the two people who work in the finance office.

Who are Ana Xinia and Alfredo?

500

This is the year the army was abolished in Costa Rica.

What is 1949?