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Edexcel IGCSE Biology > Energy from food > Flashcards

Energy from food Flashcards

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1
Q

some foods have more energy than others. what does this depend on

A

the carbs, lipids, and proteins proportions

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2
Q

what is energy measured in

A

kilojoules (kj)

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3
Q

how much kilojoules is a fully oxidized carb gram

A

about 17 kj

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4
Q

how much kilojoules is a fully oxidized lipid gram

A

about 39 kj

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5
Q

how much kilojoules is a fully oxidized protein gram

A

about 18 kj

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6
Q

what does a high lipid percentage in food mean

A

high energy amount

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7
Q

do fruit and veggies have a high energy amount or a low one

A

a low energy amount

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8
Q

how much kilojoules of energy per 100g is in margarine

A

3200

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9
Q

how much kilojoules of energy per 100g is in butter

A

3120

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10
Q

how much kilojoules of energy per 100g is in peanuts

A

2400

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11
Q

how much kilojoules of energy per 100g is in samosa

A

2400

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12
Q

how much kilojoules of energy per 100g is in chocolate

A

2300

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13
Q

how much kilojoules of energy per 100g is in cheddar cheese

A

1700

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14
Q

how much kilojoules of energy per 100g is in table sugar

A

1650

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15
Q

how much kilojoules of energy per 100g is in cornflakes

A

1530

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16
Q

how much kilojoules of energy per 100g is in rice

A

1500

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17
Q

how much kilojoules of energy per 100g is in spaghetti

A

1450

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18
Q

how much kilojoules of energy per 100g is in fried beef burger

A

1100

19
Q

how much kilojoules of energy per 100g is in white bread

A

1060

20
Q

how much kilojoules of energy per 100g is in chips

A

990

21
Q

how much kilojoules of energy per 100g is in grilled beef steak

A

930

22
Q

how much kilojoules of energy per 100g is in fried cod

A

850

23
Q

how much kilojoules of energy per 100g is in roast chicken

A

770

24
Q

how much kilojoules of energy per 100g is in boiled potatoes

A

350

25
Q

how much kilojoules of energy per 100g is in milk

A

270

26
Q

how much kilojoules of energy per 100g is in baked beans

A

270

27
Q

how much kilojoules of energy per 100g is in yoghurt

A

200

28
Q

how much kilojoules of energy per 100g is in boiled cabbage

A

60

29
Q

how much kilojoules of energy per 100g is in lettuce

A

40

30
Q

the amount of energy you need depends on what

A

your body size and the amount of activity you do

31
Q

what is the energy needed per day in kilojoules by a newborn baby

A

2,000

31
Q

the content of your diet changes based on what criteria

A

age, sex, size, etc. for example a pregnant woman may need more iron and calcium for fetus growth

32
Q

what is the energy needed per day in kilojoules by a child aged 2

A

5,000

33
Q

what is the energy needed per day in kilojoules by a child aged 6

A

7,500

34
Q

what is the energy needed per day in kilojoules by a girl aged 12-14

A

9,000

35
Q

what is the energy needed per day in kilojoules by a boy aged 12-14

A

11,000

36
Q

what is the energy needed per day in kilojoules by a girl aged 15-17

A

9,000

37
Q

what is the energy needed per day in kilojoules by a boy aged 15-17

A

12,000

38
Q

what is the energy needed per day in kilojoules by a female office worker

A

9,500

39
Q

what is the energy needed per day in kilojoules by a male office worker

A

10,500

40
Q

what is the energy needed per day in kilojoules by a heavy manual worker

A

15,000

41
Q

what is the energy needed per day in kilojoules by a pregnant woman

A

10,000

42
Q

what is the energy needed per day in kilojoules by a breastfeeding woman

A

11,300

Edexcel IGCSE Biology (43 decks)

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