. Flashcards

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1
Q

What does a balanced diet contain

A

Proteins, carbohydrates, vitamins, minerals, fibre and water

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2
Q

What is the main source of energy

A

Carbohydrate

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3
Q

Are sugars such as glucose soluble or insoluble

A

Soluble

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4
Q

Are sugars such as starch soluble or insoluble

A

Insoluble

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5
Q

Name sources of carbohydrates in the diet

A

Potatoes, rice, pasta, bread and sugary snacks

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6
Q

What are proteins made up of

A

Many subunits called amino acids

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7
Q

What are proteins used for

A

Repair and growth

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8
Q

Sources of protein

A

Meat, egg, fish and nuts

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9
Q

What are fats used as

A

A store for energy

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10
Q

What does the layer under the skin help do

A

Insulate the body

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11
Q

What molecules do fats consist of

A

A molecule of glycerol joined to 3 fatty acids

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12
Q

Fats and oils together are called

A

Lipids

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13
Q

Sources of fats in the diet

A

Meat and vegetable oils

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14
Q

All 3 main foodstuffs are compounds made from the elements

A

Carbon, hydrogen, oxygen. In addition, proteins contain nitrogen

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15
Q

What is mostly made from cellulose in plants

A

Fibre

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16
Q

Chemical test with iodine

A

Changes from brown to blue-black when added to starch

17
Q

Chemical test with Benedict’s reagent

A

Changes from blue to brick-red when heated with a reducing sugar eg glucose

18
Q

Chemical test with Biurets reagent

A

Changes from blue to lilac in the presence of proteins

19
Q

Rubbing a source of fat onto paper will leave a

A

Translucent mark

20
Q

What quantity should vitamins and minerals taken in the diet

A

Small qauntities

21
Q

If your diet does not include enough of a particular vitamin or mineral the body can develop

A

Deficiency diseases

22
Q

A lack of calcium may cause

A

Rickets

23
Q

Calcium builds

A

Bones and teeth

24
Q

Calcium is found in

A

Dairy products and green leafy vegetables

25
Q

A lack of iron may cause

A

Anaemia

26
Q

Iron is needed for

A

Red blood cells

27
Q

Iron is found in

A

Red meat, beans and nuts

28
Q

A lack of vitamin c may cause

A

Scurvy

29
Q

Vitamin c helps

A

The immune system

30
Q

Vitamin c is found in

A

Citrus fruits, peppers and broccoli

31
Q

A lack of vitamin D may cause

A

Rickets

32
Q

Vitamin D helps the body

A

Absorb calcium

33
Q

Vitamin D is found in

A

Oily fish, eggs and red meat

34
Q

The amount of water you gain and lose is

A

Balanced

35
Q

The kidneys produce

A

Urine

36
Q

Kidneys control

A

The level of water in the body by changing the volume of urine produced

37
Q

Urine is stored in the

A

Bladder

38
Q

Urine contains a toxic waste substance called

A

Urea

39
Q

Urea is produced in the liver from

A

Amino acids