Past Exam Questions

Question 1

What is the chemical formula for monosaccharides?

Answer 1

C6H12O6

Question 2

Give an example of a monosaccharide

3

Answer 2

Glucose
Fructose
Galactose

Question 3

What is the chemical formula for disaccharides?

Answer 3

C12H22O11

Question 4

Give an example of a disaccharide

3

Answer 4

Maltose (glucose + glucose)
Sucrose (glucose + fructose)
Lactose (glucose + galactose)

Question 5

What is the chemical formula for polysaccharides?

Answer 5

(C6H10O5)n

Question 6

Give an example of a polysaccharide

5

Answer 6

Starch 
Pectin 
Glycogen 
Gums 
Cellulose (dietary fibre)

Question 7

Explain the benefits of a diet high in fibre

Answer 7

(Notes Copy)

Question 8

What enzyme digests carbohydrates in the pancreas?

Answer 8

Amylase

Question 9

During the digestion of carbohydrates what is the substrate that amylase acts on

Answer 9

Starch

Question 10

During the digestion of carbohydrates what is the product of the reaction between amylase and starch

Answer 10

Maltose

Question 11

What enzymes digests carbohydrates in the small intestine?

Answer 11

Maltase
Sucrose
Lactase

Question 12

What does the enzyme maltase acts on in the small intestine?

Answer 12

Maltose

Question 13

What does the enzyme sucrose act on in the small intestine?

Answer 13

Sucrose

Question 14

What does the enzyme lactase act on in the small intestine?

Answer 14

Lactose

Question 15

What is the product of the reaction between maltase and maltose?

Answer 15

Glucose

Question 16

What is the product of the reaction between sucrase and sucrose?

Answer 16

Glucose and fructose

Question 17

What is the product of the reaction between lactase and lactose?

Answer 17

Glucose and galactose

Question 18

Classify carbohydrates

Answer 18

Monosaccharides
Disaccharides
Polysaccharides

Question 19

Give a food source of monosaccharides

3

Answer 19

Fruit
Fruit and honey
Digested milk

Question 20

Give a food source of disaccharides

3

Answer 20

Barley
Table sugar
Milk

Question 21

Give a food source of polysaccharides

6

Answer 21

Cereals and potatoes 
Fruit 
Meat 
Plants and seaweed 
Skins of fruit and vegetables 
Nuts

Question 22

Describe the effect of gelatinisation on starch

Answer 22

`l

Question 23

Give two culinary applications of gelatinisation

Answer 23

bi

Question 24

Suggest strategies to increase of dietary fibre

Answer 24

no

Question 25

Explain caramelisation

Answer 25

no

Question 26

Explain crystallisation

Answer 26

o

Question 27

Give an account of the formation of disaccharides

Answer 27

ft

Question 28

Give an account of carbohydrates and refer to the hydrolysis of sugar to inversion

Answer 28

no

Question 29

Name three properties of sugar

Answer 29

ob

Question 30

Give the culinary applications of the properties of sugar

Answer 30

bib

Question 31

Explain the term dextrinisation

Answer 31

nob

Question 32

What does salivary amylase act on in order to digest carbohydrates?

Answer 32

Starch

Question 33

What is the product of the reaction between starch and salivary amylase?

Answer 33

Maltose

Question 34

What does the enzyme lactase act on in order to digest carbohydrates?

Answer 34

Lactose

Question 35

What is the product of the reaction between lactase and lactose?

Answer 35

Glucose and galactose

Question 36

Name and explain three properties of carbohydrates that are important in food preparation

Answer 36

ob

Question 37

List the three elements found in carbohydrates

Answer 37

C
H
O

Question 38

State two effects of heat on starch

Answer 38

no

Question 39

Give an account of carbohydrates under the heading ‘functions in the body’

Answer 39

noikn

Question 40

Give an account of the properties of carbohydrates

Answer 40

ob

Question 41

State two effects of heat on starch

Answer 41

nbo

Question 42

Name two good sources of fibre in the diet

Answer 42

no

Question 43

List three culinary uses of sugar

Answer 43

NO