Nutrition Flashcards

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1
Q

Fats and oils makeup

A

CHO (carbon, hydrogen, oxygen)

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2
Q

Proteins makeup

A

CHON (carbon, hydrogen, oxygen, nitrogen)

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3
Q

Use of carbohydrate

A
  • provide energy
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4
Q

Use of fats

A
  • provides energy
  • building materials
  • store of energy
  • buoyancy
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5
Q

Use of proteins

A
  • provides energy
  • building materials
  • enzymes
  • haemoglobin
  • hormones
  • antibodies
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6
Q

Use of Vit C

A
  • protects cells from ageing

- production of fibres

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7
Q

Use of Vit D

A
  • absorption of calcium
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8
Q

Use of calcium

A
  • development + maintenance of strong bones and teeth
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9
Q

Use of iron

A
  • making haemoglobin
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10
Q

Use of fibre

A
  • provides bulk for faeces

- helps in peristalsis

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11
Q

Use of water

A
  • in chemical reactions

- as a solvent for transport

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12
Q

Symptoms of Vit C deficiency

A
Ailment: scurvy
Effects:
- loss of teeth
- pale skin
- sunken eyes
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13
Q

Symptoms of Vit D deficiency

A

Ailment: rickets
Effect:
- weak bones + teeth

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14
Q

Symptoms of calcium deficiency

A

Ailment: rickets
Effect:
- weak bones + teeth

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15
Q

Symptoms of iron deficiency

A

Ailment: anaemia
Effect:
- fatigue

Less iron –> less haemoglobin –> less oxygen transport –> less respiration –> less energy

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16
Q

Production of yogurt

A
  • soured milk, partially clotted, has a mildly acidic taste

- culture of bacteria is kept at 45 degrees and turns lactose to lactic acid during respiration

17
Q

Cause of coronary heart disease

A

Eating too much fats which are rich in saturated fatty acids and cholesterol

18
Q

Cause of constipation

A

Lack of roughage in food.

19
Q

Cause of obesity

A
  • eating too much fats and carbohydrates

- causes overall increase in body weight

20
Q

Effects of obesity

A
  • heart attack
  • stroke
  • joint pains
  • mobility impairments
  • high blood pressure
21
Q

Define ingestion

A

Taking substances into the body through the mouth

22
Q

Define egestion

A

Passing out undigested foods as faeces through the anus

23
Q

Define digestion

A

The breakdown of large insoluble molecules into small soluble molecules through both mechanical and chemical processes

24
Q

Function of mouth

A
  • where ingestion occurs
  • contains teeth for mechanical digestion
  • saliva contains amylase, which breaks down starch
25
Q

Function of salivary glands

A

Produces saliva, which contains amylase and helps food move down the oesophagus

26
Q

Function of oesophagus

A

Tube-shaped organ using peristalsis to transport food from mouth to stomach

27
Q

Function of stomach

A
  • has sphincters to control movement in and out
  • highly acidic contents (hydrochloric acid)
  • contains protease (pepsin)
28
Q

Function of small intestine

A

First part (duodenum):

  • fats emulsified by bile
  • pancreatic amylase, lipase, and protease (trypsin) also present

Second part (ileum):

  • absorption takes place here
  • maltase breaks down maltose to glucose
29
Q

Function of pancreas

A

Produces pancreatic juice containing amylase, protease (trypsin), and lipase

30
Q

Function of large intestine

A

First part (colon):

  • absorption of minerals and vitamins
  • reabsorbs water from waste
Second part (rectum):
- faeces temporarily stored here
31
Q

How does fluoridation help teeth?

A
  • promotes tooth remineralisation (by attracting other minerals, like calcium)
  • helps to make tooth decay-resistant
  • slows down production of acids by bacteria
32
Q

Pros of adding fluorine to public water supplies

A
  • strengthens tooth enamel
  • free
  • cheap to supply
  • treats whole population
  • available to all
33
Q

Cons of adding fluorine to public water supplies

A
  • allergies
  • bad taste
  • dosage uncontrolled
  • no individual choice
34
Q

Carbohydrate makeup

A

CHO (carbon, hydrogen, oxygen)