Nfs P2 Flashcards

1
Q

What are proteins of high biological value

A

Complete proteins that supply the body with all essential amino acids

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2
Q

Examples of high biological value proteins

A

Beef and soya beans

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3
Q

What are proteins of low biological value

A

Incomplete proteins that lack one or more essential amino acids

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4
Q

What are complimentary proteins

A

Formed by combining two or more low biological value proteins so the body obtains all the essential amino acids to carry out body functions

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5
Q

Examples of complimentary proteins

A

Dhal with rice
Baked beans on bread

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6
Q

Examples of low biological value proteins

A

Dhal and almonds

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7
Q

Elements of proteins

A

CHON

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8
Q

Functions of proteins (7)

A

Growth and repair
Formation of enzymes
Providing structure
Transportations of nutrients, gases and wastes
Immunity
Energy reserve
Body movements

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9
Q

What are the two simple carbohydrates

A

Monosaccharide
Disaccharide

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10
Q

What is the complex carbohydrate

A

Polysaccharide

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11
Q

What is monosaccharide

A

Simple unit of carbohydrate
Fructose, galactose and glucose

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12
Q

What is disaccharide

A

Consists of two units of monosaccharide bonded together
Lactose, Maltose and sucrose

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13
Q

Examples of simple carbohydrates

A

sweet drinks and sweet pastries

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14
Q

What is polysaccharide

A

Consists of 10 or more units of monosaccharide bonded together
Pectin Starch and Cellulose

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15
Q

Elements of carbohydrates

A

CHO

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16
Q

Functions of carbohydrates

A

Main source of energy
Aids with digestion

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17
Q

What are saturated fats

A

Consists of mostly saturated fatty acids
Does not contain any double bonds within the hydrocarbon chain
Cannot take in anymore hydrogen atoms
Solid at room temperature
Increases heart diseases

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18
Q

Examples of saturated fats

A

Butter and lard

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19
Q

What are unsaturated fats

A

Contain mostly unsaturated fatty acids
Two types are monounsaturated and polyunsaturated

20
Q

What is monounsaturated fats

A

Consists mostly of monounsaturated fatty acids
Contain one double bond within the hydrocarbon chain
Can take in two hydrogen atoms
Liquid at room temperature

21
Q

Examples of monounsaturated fats

A

Avocados and almonds

22
Q

What are polyunsaturated fats

A

Consists of mostly polyunsaturated fatty acids
Contain two or more double bond in the hydrocarbon chain
Can take in four or more hydrogen atoms
Beneficial for health
Liquid at room temperature

23
Q

Examples of polyunsaturated fats

A

Sunflower seeds and salmon

24
Q

What is trans fats

A

Contain mostly of trans fatty acids that that was processed during the hydrogenation of vegetable oils
Increases heart diseases

25
Q

What is hydrogenation

A

Industrial process in which liquid oils are converted into solid fats
Makes margarine and vegetable shortening
Unsaturated fatty acids become more saturated

26
Q

Function of fats

A

Rich source of energy
Insulation
Storage for fat-soluble vitamins
Protection of vital organs

27
Q

What are the fat soluble vitamins

A

ADEK

28
Q

Function of Vitamin A

A
  • Formation of visual purple, a pigment in the retina of the eye to see in dim light
  • Essential for production and and maintenance of tissue lining protecting organs
  • Strengthens body immunity against infections as its needed for the production of white blood cells
  • Acts as an antioxidant to protect body cells from free radicals
29
Q

Function of Vitamin D

A

Ensures calcium absorption

30
Q

Function of Vitamin E

A

Acts as an antioxidant to protect body cells from free radicals

31
Q

Function of vitamin K

A
  • Important for the body to produce enzyme that is involved in blood clotting
  • Important for bone health
32
Q

Source of fat soluble vitamin

A

Egg yolk

33
Q

Water soluble vitamins

A

B1.B2,B3,B12 and C

34
Q

Function of Vitamin B1

A
  • Helps with energy production in the body
  • Essential for normal function nervous system for producing chemical to transmit nerve signals
35
Q

Function of Vitamin B2

A

-Helps with energy production in the body
- Helps to maintain good skin health due to its anti inflammatory properties

36
Q

Function of B3

A
  • Helps with energy production in the body
37
Q

Function of B12

A
  • Helps with energy production in the body
  • Activates enzymes for synthesis of genetic material in the body
  • Essential for normal functioning nervous system that protect nerve fibres
38
Q

Vitamin C

A
  • Enhances iron absorption
    -Strengthen collagen
    -Acts as an antioxidant to protect body cells from free radicals
    -Needed for the support of immune system by encouraging production of white blood cells
39
Q

Source of B group

A

Liver

40
Q

Source of Vitamin C

A

Guava

41
Q

What are the functions of water

A
  • Regulates the body temperature by helping the body lose heat through perspiration
  • Essential chemical reaction as water soluble nutrients need to be dissolved in water so they can undergo chemical reactions
  • Transportation of nutrients and gases as water is a major component of blood
  • Removal of wastes
  • Lubrication of body parts as fluids in the body are made up of mostly water
42
Q

Food sources of water

A

Watermelon and cucumber

43
Q

Factors affecting water intake

A
  • State of health, Higher intake of water is needed when a person has fever, vomiting or diarrhoea as they cause large amounts of water to be lost
  • Diet, Higher intake of water when diet high in diuretics, dietary fibre and sodium
    Environment, Higher intake of water needed when environment is bot as the body tends to loose more water
  • Level of physical activity, increase water intake as body produces more heat when performing strenuous
44
Q

Function of Dietary Fibre

A
  • Lowers blood cholesterol level by binding to cholesterol and excrete it
  • Increase satiety as it stays in the stomach longer
  • Slows down glucose absorption by delaying digestion of nutrients
  • Removes waste by attracting water, forming bulky and soft stools
45
Q

Food source of dietary fibre

A

Carrot and apple

46
Q
A