Nutritional Value Of Meat Flashcards Preview

Home Economics: 04.2 - Fish > Nutritional Value Of Meat > Flashcards

Flashcards in Nutritional Value Of Meat Deck (32)
Loading flashcards...
1
Q

Under what headings is the nutritional value of meat evaluated?
(6)

A

Proteins

Fat

Carbohydrates

Vitamins

Minerals

Water

2
Q

Write a note on the protein present in fish.

2

A

An excellent source of high biological value (HBV) protein

The main proteins present are myosin and actin in the myomeres and collagen in the connective tissue

3
Q

What value of protein is present in fish?

A

High biological value

4
Q

List the proteins present in fish.

2

A

Myomeres - myosin and actin

Connective tissue - collagen

5
Q

Write a note on the fat present in fish.

3

A

Oily fish are a source of polyunsaturated fat, especially the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)

No fat is present in white fish as white fish store fat in their livers, which are removed during filleting

Shellfish contain a small amount of cholesterol

6
Q

What type of fat is present in oily fish?

A

Polyunsaturated fat

7
Q

What type of fish is high in polyunsaturated fat?

A

Oily fish

8
Q

What polyunsaturated fats are present in oily fish?

A

Omega-3 fatty acids

9
Q

What omega-3 fatty acids are present in oil fish?

2

A

Eicosapentaenoic acid (EPA)

Docosahexaenoic acid (DHA)

10
Q

What does EPA stand for?

A

Eicosapentaenoic acid

11
Q

What does DHA stand for?

A

Docosahexaenoic acid (DHA)

12
Q

What type of fat is present in white fish?

A

No fat is present in white fish

13
Q

Why is there no fat present in white fish?

A

As white fish store fat in their livers, which are removed during filleting

14
Q

What type of fish contain no fat?

A

White fish

15
Q

What type of fat is found in shellfish?

A

Shellfish contain a small amount of cholesterol

16
Q

What type of fish contain a small amount of cholesterol>

A

Shellfish

17
Q

Write a note on the carbohydrates present in fish.

2

A

Lacks carbohydrates, as glycogen (stored glucose) is converted to lactic acid during the struggle when fish are caught

For this reason fish is usually served with a carbohydrate-rich food, e.g. potatoes

18
Q

Why do fish lack carbohydrates?

A

As glycogen (stored glucose) is converted to lactic acid during the struggle when fish are caught

19
Q

What is glycogen?

A

Stored glucose

20
Q

What is glycogen converted into during the fish’s struggle when being caught?

A

Lactic acid

21
Q

When is glycogen converted into lactic acid in fish?

A

During the struggle when fish are caught

22
Q

Write a note on the vitamins present in fish.

3

A

A source of B-group vitamins, particularly pyridoxine (B6) and cobalamin (B12)

Oily fish and white fish livers contain vitamins A and D

Some shellfish, e.g. mussels. are a source of vitamins A and C

23
Q

What vitamins are present in all fish?

2

A

Vitamin B6/pyridoxine

Vitamin B12/cobalamin

24
Q

What vitamins are present in oily fish and white fish livers?
(2)

A

Vitamin A

Vitamin D

25
Q

What vitamins are present in shellfish such as mussels?

A

Vitamin A

Vitamin C

26
Q

What type of fish contain vitamin A and C?

A

Shellfish

27
Q

What type of fish contain vitamin A and D?

A

Oily fish and fish livers

28
Q

Write a note on the minerals present in fish.

2

A

Contains small amounts of iodine, zinc, potassium, phosphorus and fluorine

Shellfish, especially mussels and oysters, are good sources of iron

29
Q

What minerals are present in all fish?

5

A

Iodine

Zinc

Potassium

Phosphorus

Fluorine

30
Q

What minerals are present in shellfish, especially mussels and oysters?

A

Iron

31
Q

Give two examples of shellfish which are high in iron

A

Mussels

Oysters

32
Q

Write a note on the water present in fish

2

A

Water content varies depending on the fish type

The higher the water content the less fat present