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Food Science Ch 9 Complex Carbohydrates Test REVIEW

Total questions: 32

Worksheet time: 16mins

Name
Class
Date
1.

Forms the rigid structure of plants.

a)

amylose

b)

carbohydrate gum

c)

cellulose

2.

Binds batters to meat and vegetables during deep frying.

a)

amylose

b)

carbohydrate gum

c)

pectin

3.

Responsible for the texture of jams and jellies.

a)

carbohydrate gum

b)

polysaccharides

c)

pectin

4.

Thickens, stabilizes, and traps flavors and color in food products.

a)

amylose

b)

carbohydrate gum

c)

pectin

5.

Starches can be defined as _____.

(hint- "many")

a)

monosaccharides

b)

disaccharides

c)

polymers of sugars

6.

Syneresis is more likely to occur _____. (hint- "backwards")

a)

when a starch mixture is cooled too rapidly

b)

when there is extreme retrogradation

c)

when there is a high level of amylopectin

7.

The ability of some starch-water mixtures to thicken as they cool is called what?

a)

retrogradation

b)

gelatinization

c)

viscosity

8.

The test used by food scientists to measure the resistance to flow of a starch thickened mixture is called _____.

a)

gelatinization

b)

syneresis

c)

viscosity

9.

Which factor does NOT affect the ability of starch to thicken?

a)

The size of crystals formed from a solution.

b)

The pH level of the food.

c)

The serving temperature.

10.

Cellulose is indigestible but necessary for _____.

a)

feeling full

b)

helping in elimination of wastes

c)

preventing stomach cancer

11.

How many kilocalories per gram are provided by complex carbohydrates?

a)

4

b)

6

c)

100

12.

Pectin is _____.

a)

an artificial additive derived from complex starches

b)

found naturally within many fruits and vegetables

c)

most commonly used in baked goods

13.

Line-spread sheets are used to test what?

(hint- "flow")

a)

retrogradation

b)

solubility

c)

viscosity

14.

The leakage of liquid from a gel or paste as in ketchup and mustard is called _____.

a)

gelatinization

b)

syneresis

c)

retrogradation

15.

Starches with a branched structure are called _____.

a)

amylopectin

b)

granules

c)

polymers

16.

Another name for fiber is _____.

(hint- makes plant cells ridged)

a)

amylose

b)

cellulose

c)

gums

17.

Pectins are _____.

a)

called sugar acids

b)

derived from sugar

c)

found naturally in plant cells

d)

All of the above.

18.

The function of gums in food is _____.

a)

stabilizer and thickener

b)

provide structure

c)

caramelization

19.

Which of the following is a function of complex carbohydrates?

a)

Bind batters to foods during deep frying.

b)

Stabilize ice cream.

c)

Thicken liquids.

d)

all the above

20.

Which of the following factors can reduce a starch’s thickening ability?

a)

Adding acid.

b)

Heating to the gelatinization point.

c)

Reducing salt content.

21.

For pectin to gel, which of the following compounds must be present?

a)

Acid, sugar, and water.

b)

Calcium, sugar, and water.

c)

Cellulose, sugar, and water.

22.

An uncooked mixture of starch and water is called _____.

a)

gel

b)

paste

c)

slurry

23.

Retrogradation is undesirable _____.

a)

in any food mixture

b)

when it causes syneresis

c)

in fruit gels

24.

Which of the following starches will produce an opaque gel?

a)

Potato starch.

b)

Tapioca starch.

c)

Wheat flour.

25.

The measure of how much light passes through an object is _____.

a)

translucency

b)

syneresis

c)

viscosity

26.

Athletes should eat a high PROTEIN diet just before competition to provide energy.

a)

True

b)

False

27.

The least viscous starch mixture is a "SOL".

a)

True

b)

False

28.

The more a person exercises, greater amounts of GLYCOGEN will be stored in the muscles

a)

True

b)

False

29.

Starches are selected for commercial use based on their what?

a)

translucency

b)

color

30.

CELLULOSE is a polysaccharide made from b-D-glucose.

a)

True

b)

False

31.

The temperature at which maximum swelling occurs is the

GELATINIZATION POINT.

a)

True

b)

False

32.

Proteins provide the body with ENERGY.

a)

True

b)

False