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Science Test Feb 6/2/22 > Food & Nutrition > Flashcards

Food & Nutrition Flashcards

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Biology 101 flashcards
1
Q

What is a diet?

A

What you eat

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2
Q

What is a balanced diet?

A

right nutrients at required amount to maintain healthy lifestyle

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3
Q

What is a deficiency disease?

A

people who lack a nutrient for a long time can suffer from

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4
Q

What do kilojoules measure?

A

Calories, energy

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5
Q

What are nutrients?

A

raw materials for your body needed for energy, growth & repair, health.

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6
Q

What does MRSGREN stand for?

A

movement, respiration, sensitivity, growth, reproduction, excretion and nutrition.

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7
Q

What do carbohydrates do?

A

Provide energy

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8
Q

What does protein do?

A

Growth and repair

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9
Q

What are lipids used for?

A

To provide and store energy.

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10
Q

What is the function of minerals?

A

16 essential minerals needed in small amounts to maintain health

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11
Q

What do vitamins do?

A

needed in small amounts to maintain health

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12
Q

What does fibre do?

A

Keeps food moving through the gut and to keep the digestive system healthy.

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13
Q

What does water do?

A

around 70% of your body mass is water. It’s needed for chemical reactions in cells which take place in water. It also cools you down as you sweat.

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14
Q

2 examples of carbohydrates?

A

Cereals, Bread

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15
Q

What are the two main types of carbohydrates?

A

Starch and sugar

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16
Q

2 examples of protein?

A

Meat, Fish

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17
Q

Two examples of lipids?

A

Butter, oil

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18
Q

3 main example of minerals?

A

Calcium - for teeth and bones
Iron - for haemoglobin in blood
Sodium/salt for nerves

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19
Q

What food can vitamins be found in?

A

Fruits and vegetables

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20
Q

What food can fibre be found in?

A

Vegetables, bran

21
Q

5 main nutrients?

A

Protein, carbohydrates,vitamins,minerals, lipids

22
Q

What is malnutrition?

A

too much or too little amounts of nutrients in your diet.

23
Q

What does a lack of vitamin a cause?

A

Blindness

24
Q

What does a lack of vitamin c lead to?

A

Scurvy - painful joints + bleeding gum

25
Q

What does a lack of calcium and vitamin d lead to?

A

Rickets

26
Q

What does a lack of iron cause?

A

Anaemia

27
Q

What does a lack of protein lead to?

A

Kwashiorkor - stomach muscles too weak to hold stomach in

28
Q

How do you calculate your daily BER?

A

5.4 x 24 hours x body mass (kg)

29
Q

What does the amount of energy you need depend on?

A

Amount of energy you need depends on age, weight, height and how active you are.

30
Q

What is obesity and what does it cause?

A

if you take in more energy from your diet then you use
20% above of average weight for your height = obese = heart disease, high blood pressure

31
Q

What is starvation?

A

when you don’t get enough food to eat = slow growth and weak immune system - infections = irregular periods in women

32
Q

What solution is used to test starch?

A

Iodine

33
Q

What does Benedict’s solution test?

A

Reducing sugars

34
Q

What does buirets solution test?

A

Protein

35
Q

What colour does Iodine turn if starch is positive or negative?

A

Straw yellow to blue/black

36
Q

What colour does Benedict’s turn if sugar is present or not?

A

Blue = none, green = traces of reducing sugar, orange = moderate, brick ret = large amount

37
Q

What colour does biuret solution turn if protein is present or negative?

A

Blue = negative, purple = positive

38
Q

What does filter paper test and explain.

A

Filter paper test if fats are present. You rub a peice of your food in the paper and if it leaves a stain (is translucent) it’s Positive but if it doesn’t ( opaque) its negative

39
Q

What do nutrition labels show?

A

Nutrition labels show the amounts of different nutrients you need in a food. You can compare the per 30 or 100g of food but you can’t compare the serving because different foods are different sizes.

40
Q

What is acute malnutrition?

A

when a person is at immediate risk of dying.

41
Q

What is chronic malnutrition?

A

when a person does not grow or develop fully.

42
Q

What foods turn blue/black in Iodine solution?

A

Bread, rice, potato however salt doesn’t

43
Q

Egg albumin and milk powder both have protein because they turned purple. Which has more?

A

Egg albumin has more protein because it was dark purple while milk powder was light purple.

44
Q

Give am example of a food/drink that turns brick red in Benedict’s?

A

Lemonade

45
Q

Give an example of a food that turns Blue in Benedict’s?

A

Flour

46
Q

Give an e maple of a food that turns green in Benedict’s?

A

Cereal

47
Q

What foods turned the filter paper translucent?

A

Butter, biscuits

48
Q

What food kept the filter paper opaque?

A

Cereal, bread.

Science Test Feb 6/2/22 (6 decks)

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