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Biology - 6th Year > Food > Flashcards

Food Flashcards

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1
Q

Food is needed for

A

Energy
Growth of new cells
Repair cells
Making chemicals needed for metabolism

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2
Q

Elements in food

A 
Hydrogen 
Carbon
Oxygen 
Nitrogen 
Phosphorus
Sulfur
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3
Q

Elements in salts

A 
Sodium
Magnesium 
Chlorine
Potassium 
Calcium
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4
Q

Trace elements

A

Cooper
Iron
Zinc

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5
Q

Biomolecules

A

Chemicals found inside living things

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6
Q

Examples of biolmolecules

A

Starch
Glucose
Keratin

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7
Q

Monosaccharides are

A

Smallest unit if carbohydrates
Sweet
Soluble

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8
Q

Eg of monosaccharides

A

Glucose

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9
Q

Disaccharides

A

Two monosaccharides joined together

Sweet and soluble

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10
Q

Eg if disaccharides

A

Sucrose
Maltose
Lactose

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11
Q

Polysaccharides

A

Many monosaccharides linked together
Insoluble
Not sweet

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12
Q

Eg of polysaccharides

A

Starch and cellulose

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13
Q

Starch

A

Stored in plants eg patatoes

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14
Q

Cellulose

A

Used in cell walls and fiber in diet

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15
Q

Glycogen

A

Stored by animals in liver and muscles

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16
Q

Smallest unit of lipid

A

Triglyceride

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17
Q

Triglycerides

A

1 glycerol and 3 fatty acids

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18
Q

Phospholipids

A

Substances were one of the fatty acids is replaced by a phosphate group

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19
Q

Eh of phospholipid

A

Cream and butter

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20
Q

Protein is made up of

A

Amino acid units

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21
Q

How many amino acids in a peptide

A

Less than 20

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22
Q

How many amino acids in a polypeptide

A

More than 20

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23
Q

How many amino acids in a protein

A

At least 200

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24
Q

What shape do proteins fold into to function properly

A

3D

25
Q

Two types of proteins

A

Fiberous

Globular

26
Q

Fibrous proteins

A

Little folding eg keratin

27
Q

Globular proteins

A

Lots of folding eg enzymes and hormones

28
Q

Metabolic role of vitamin c

A

Helps wounds heal

29
Q

Defiency of vitamin c

A

Scurvy

30
Q

Metabolic role of vitamin d

A

Maintains healthy teeth and bones

31
Q

Deficiency in vitamin d

A

Rickets in children

32
Q

Keratin

A

Hair

33
Q

Collogen

A

Skin

34
Q

Myosin

A

Muscle

35
Q

Cellulose forms

A

Cell walls

36
Q

Stored lipids..

A

Heat insulation

37
Q

Metabolic role of carbohydrates

A

Release energy

38
Q

Protein enzymes

A

Control reactions

39
Q

Protein Antibodies

A

Fight infection

40
Q

Protein hormones

A

Regulate body reactions

41
Q

Metabolic role of lipids

A

Release energy

42
Q

Functions it minerals

A

Form biomolecules

Make body parts soft

43
Q

Two minerals in plants

A

Magnsium

Calcium

44
Q

Magnesium in plants

A

Form chlorophyll

45
Q

Calcium in plants

A

Form cell walls

46
Q

Minerals in animals

A

Iron

Calcium

47
Q

Iron in animals

A

Form haemoglobin

48
Q

Calcium in animals

A

Form strong bones

49
Q

How much cell mass does water take up

A

70-95%

50
Q

Water is a component of..

A

Cyctoplasm

51
Q

Water is a great

A

Solvent

52
Q

Water transports

A

Substances

53
Q

Water participates in

A

Chemical reactions

54
Q

Metabolism

A

All chemical reactions in an organism

55
Q

Anabolic

A

Convert smaller molecules into complex omes

56
Q

Ex of anabolic

A

Photosynthesis

57
Q

Catabolic

A

Convert complex molecules into smaller ones

Release energy

58
Q

Ex of catabolic

A

Respiration/ digestion

59
Q

Buiret solution is

A

Sodium hydroxide and copper sulfate

Biology - 6th Year (21 decks)

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