Nutritional Value Of Eggs

Question 1

Under what headings is the nutritional value of eggs evaluated?

Answer 1

Proteins

Fat

Carbohydrates

Vitamins

Minerals

Water

Question 2

Write a note on the protein present in eggs.

3

Answer 2

An excellent source of high biological value (HBV) protein

Ovalbumin and globulin in the white

Vitellin and livetin in the yolk

Question 3

What classification of protein is present in eggs?

Answer 3

High biological value

Question 4

What proteins are present in the egg white?

Answer 4

Ovalbumin

Globulin

Question 5

What proteins are present in the egg yolk?

Answer 5

Vitellin

Livetin

Question 6

Where is ovalbumin and globulin present in the egg?

Answer 6

The egg white

Question 7

Where is vitellin and livetin present in the egg?

Answer 7

The egg yolk

Question 8

Write a note on the fat present in the egg.

3

Answer 8

Saturated fat is present in the yolk - it is dispersed as a fine emulsion due to the presence of lecithin

The yolk contains cholesterol

The white is fat-free

Question 9

What type of fat is present in the egg yolk?

Answer 9

Saturated fat

Question 10

How is the saturated fat present in the egg yolk?

Answer 10

It is dispersed as a fine emulsion due to the presence of lecithin

Question 11

What causes the fat in the yolk to be dispersed as a fine emulsion?

Answer 11

The presence of lecithin

Question 12

Other than saturated fat, what is presence in the egg yolk?

Answer 12

Cholesterol

Question 13

What fat is present in the egg white?

Answer 13

The egg white is fat-free

Question 14

Write a note on the carbohydrates present in eggs.

Answer 14

Eggs lack carbohydrates, for this reason eggs are usually served with a carbohydrate-rich food, e.g. bread

Question 15

Give an example of a carbohydrate-rich food, that eggs can be served with?

Answer 15

Bread

Question 16

Write a note on the vitamins present in eggs.

4

Answer 16

A source of B-group vitamins, particularly thiamine (B1), riboflavin (B2), niacin (B3) and cobalamin (B12)

Yolks are a good source of vitamin A,D,E and K

Vitamin A (beta-carotene) gives the yolk its colour

Eggs lack vitamin C

Question 17

List the B-group vitamins present in eggs.

4

Answer 17

Thiamine (B1)

Riboflavin (B2)

Niacin (B3)

Cobalamin (B12)

Question 18

List the fat-soluble vitamins present in eggs.

4

Answer 18

Vitamin A

Vitamin D

Vitamin E

Vitamin L

Question 19

Where are the fat soluble vitamins present in eggs?

Answer 19

In the yolk

Question 20

What function does vitamin A have in the egg yolk?

Answer 20

Vitamin A (beta-carotene) gives the yolk its colour

Question 21

What form of vitamin A is present in egg yolks?

Answer 21

Beta-carotene

Question 22

What vitamin do eggs lack?

Answer 22

Vitamin C

Question 23

Write a note on the minerals present in eggs.

2

Answer 23

A good source of calcium, phosphorus, zinc and sulfur

Non-haem iron is present in the yolk

Question 24

What mineral is present in the yolk?

Answer 24

Non-haem iron

Question 25

List all of the minerals present in eggs.

Answer 25

Calcium Phosphorus Zinc Sulfur Non-haem iron

Question 26

What form of iron is present in eggs?

Answer 26

Non-haem iron

Question 27

Write a note on the water present in eggs.

Answer 27

High water content, with the majority found in the white

Question 28

Where is the majority of the water found in an egg?

Answer 28

The majority is found in the egg white