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GCSE Biology > Nutrition: Humans > Flashcards

Nutrition: Humans Flashcards

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1
Q

What is a balanced diet?

A

appropriate proportions of Carbohydrates, Water, protein, mineraly, and dietary fibre

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2
Q

How do energy requirements vary?

A

With age, activity levels, pregnancy

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3
Q

Carbohydrate is…

A

a source of energy

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4
Q

Lipids are…(3)

A

energy
insulation
protection of organs

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5
Q

Protein is for… (3)

A

growth
repair of tissues
making enzymes

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6
Q

Vitamin A…

A

Helps vision in dim light

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7
Q

Vitamin C…

A

prevents scurvy

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8
Q

Vitamin D…(2)

A

helps bone growth

prevents rickets

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9
Q

Mineral ion (Calcium)…

A

strenghtens bones

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10
Q

Mineral ions (Iron)…

A

needed for haemoglobin

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11
Q

Water…

A

prevents dehydration

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12
Q

Dietary fibre…(2)

A

helps peristalsis

reduces constipation

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13
Q

Ingestion

A

food enters the mouth

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14
Q

Digestion

A

the breakdown of large insoluble molecules

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15
Q

Absorption

A

small food molecules move from the small intestine into blood capillaries for lacteals

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16
Q

Assimilation

A

small food molecules are used to build large molecules

17
Q

Egestion

A

removal of faeces from the anus

GCSE Biology (15 decks)

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