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Food Chemistry Review

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

Proteins, CHOs, and Lipids all contain which 3 elements?

a)

N, P, K

b)

C, H, N

c)

C, H, O

d)

N, H, O

2.

Almost all carbohydrates are produced by _________.

a)

cellular respiration

b)

transpiration

c)

photosynthesis

d)

digestion

3.

Which of the following is NOT a classification of a carbohydrate?

a)

sugar

b)

sterol

c)

starch

d)

fiber

4.

Which of the following is NOT a function of carbohydrates?

a)

reducing agent

b)

solids replacement

c)

palatability

d)

emulsifier

5.

The Maillard Reaction is a chemical reaction between ____ and ____ to produce color, aromas, and flavors.

a)

sugars, amino acids

b)

sugars, starches

c)

sugars, sugars

d)

amino acids, lipids

6.

What is the basic unit of a carbohydrate?

a)

amino acid

b)

fatty acid

c)

monosaccharide

d)

sugar

7.

An inverted sugar is the chemical breakdown of a ______ into its separate monosaccharides.

a)

polysaccharide

b)

disaccharide

c)

polypeptide

d)

peptide

8.

Which of the following is an example of a polysaccharide?

a)

sucrose

b)

galactose

c)

glucose

d)

starch

9.

Select all of the fat soluble vitamins.

a)

A

b)

C

c)

D

d)

E

e)

K

10.

True or False: A plant based lipid is referred to as an 'oil' and is usually liquid at room temperature due to its unsaturated fatty acids.

a)

True

b)

False

11.

Lipids are made up of _ fatty acid molecules and _ glycerol molecules.

a)

2, 2

b)

1, 3

c)

1, 4

d)

3, 1

12.

Saturated lipids are saturated with ____.

a)

Oxygen

b)

Hydrogen

c)

Carbon

d)

Nitrogen

13.

Hydrogenation is the act of adding hydrogen to lipids to _____ double bonds in order to form a solid.

a)

create

b)

strengthen

c)

remove

d)

weaken

14.

Lipids act as a leavening agent in food. This is due to the slight _____ of molecules.

a)

charge

b)

polarity

c)

stickiness

15.

A fine dispersion of small droplets of one liquid in another in which it is not soluble.

a)

stabilizer

b)

binder

c)

solution

d)

emulsion

16.

True or False: An essential amino acid is synthesized by the body.

a)

True

b)

False

17.

What is the mnemonic that we use to remember the 9 essential amino acids? (Hint: for the quiz, familiarize yourself with the names of the 9 essential amino acids)

(a)  

18.

An amino acid is made up of 3 groups. Which of the following is NOT one of them?

a)

amino group (NH2)

b)

saccharide group (SH3)

c)

R group

d)

carboxyl group (COOH)

19.

A specialty protein that helps break down other substances and catalyzes chemical reactions.

a)

hormone

b)

enzyme

c)

peptide

20.

Caramelization is a reaction between _____ and _____.

a)

sugars, amino acids

b)

amino acids, amino acids

c)

sugars, sugars

d)

sugars, starches

21.

A chain of amino acids that is longer than 100 amino acids. (choose the most correct answer)

a)

peptide

b)

polypeptide

c)

protein

22.

A group of multiple polypeptide chains clumped together.

a)

Primary structure

b)

Secondary structure

c)

Tertiary structure

d)

Quaternary structure

23.

By adding heat, enzymes, fermenters, or changing the pH, you can ________ or unfold a protein.

a)

denature

b)

coagulate

c)

thicken

d)

invert