Food / Biomolecular Structures Flashcards

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1
Q

Food is needed for

A
  • Energy
  • Growth of new cells
  • Repair
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2
Q

Six chemical elements in food

A

CHONPS

Calcium, Hydrogen, Oxygen, Phosphorus, Sulphur

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3
Q

Six components of food

A

Water, Proteins, Carbohydrates, Lipids, Minerals, Vitamins

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4
Q

Elements of carbohydrates

A

Carbon
Hydrogen
Oxygen

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5
Q

Three types of carbohydrates

A

Monosaccharides
Disaccharides
Polysaccharides

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6
Q

Structure of lipids

A

Carbon
Hydrogen
Oxygen

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7
Q

Main molecules of lipids

A

Fatty acids

Glycerol

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8
Q

Types of lipids

A

Triglycerides

Phospholipids

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9
Q

Elements of protein

A

Carbon
Hydrogen
Oxygen
Nitrogen

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10
Q

Structure of protein

A

Made of chains of amino acids
Joined together by peptide bonds
Result in formation of polypeptide chains

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11
Q

Fat soluble vitamins

A

A D E K

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12
Q

Water soluble vitamins

A

B C

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13
Q

Structural role of carbohydrates

A

Carbohydrate cellulose is used form plant cell walls

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14
Q

Structural role of protein

A

Fibrous protein such as keratin is found in skin and hair

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15
Q

Structural role of lipids

A

Are important food stores in plants and animals

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16
Q

Metabolic role of carbohydrates and lipids

A

Breakdown in respiration to release energy, this is used to carry out many other metabolic reactions

17
Q

Metabolic role of protein

A

Used as enzymes to control reactions and as antibiotics to fight infection

18
Q

Anabolic reactions

A

Uses enzymes and energy to convert smaller molecules into larger ones

19
Q

Catabolic reactions

A

Using enzymes are complex molecule is broken down into simpler ones as well as releasing energy

20
Q

Importance of water for living things

A

Good solvent
Participates in chemical reactions
Good absorber of heat