Nutrients, food test, unhealthy diet Flashcards
1
Q
Nutrients
A
- Essential substance that is required in order to survive
- sourced by food
2
Q
Carbohydrate
A
Nutrients that provides energy
-Brocken down into Sugars
3
Q
Lipids
A
Fat
Provides energy and warmth
4
Q
Protein
A
Helps growth and repairs
5
Q
Vitamin and mineral
A
Nutrients needed to be healthy
6
Q
Fibre
A
- not a nutrient
- bulk that punches food through digestive system
- prevents constipation
7
Q
Balanced diet
A
-eating food containing right nutrients in the right amounts
8
Q
Lipids use
A
- provide energy/ store energy
- insulates body
- protects certain organs from damage (heart + kidneys)
9
Q
Vitamins benefits
A
- vitamin a = good eyesight
- vitamin d = strong bones and teeth
- vitamin c = heels wounds
- vitamin b = healthy nervous system
10
Q
Water benefits
-
A
- 70% of cells made up of water
- Hydration
- Cooling body down/ sweat
11
Q
Food test
A
Chemical test taken to identify nutrient in particular food
12
Q
Hypothesis
A
An idea that is used as an explanation for observations
13
Q
Test for starch
- chemical
- colour of chemical
- colour of positive result
A
- chemical= iodine
- chemical colour= amber
- positive result= dark blue/ black
14
Q
test for protein
- chemical
- colour of chemical
- colour of positive result
A
- chemical= biuret (or copper sulphate and sodium hydroxide)
- colour of chemical= blue
- colour of positive result=purple
15
Q
Test for sugar
- chemical
- colour of chemical
- colour of positive result
- how
A
- chemical= benedict’s solution
- colour of chemical=blue
- colour of positive result= orange - red=high amount, green-yellow=low amount.
- how=heat in water bath
