10839004
Description
Mind Map by Niamh Carey, updated more than 1 year ago
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Created by Niamh Carey
about 7 years ago
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food
- organisms need food for growth and repair
- food is made up of 14 elements , carbon, hydrogen, oxygen, and the rest are
often called minerals
- carbohydrates
- monosacharides
discharides
polysacharrides
- source: bread, potatoes, rice, flour and sweets
- made up of carbon, hydrogen and oxygen
- monosacharides
discharides
polysacharrides
- structure:amino acids, peptides, poly peptides and protein
- proteins contain the elements carbon, hydrogen
,oxygen and nitrogen
- sometimes small amounts of sulfur and
some may contain small bits of
phosphorus
- sometimes small amounts of sulfur and
some may contain small bits of
phosphorus
- sources: meat,fish,eggs,milk
- proteins
- metabolic role: proteins are used as ensymyes to control reactions ,they also form
antibodies to fight infection. some hormones are protein-based and are used to regulate
body reactions
- test: sodium hydroxide , then copper sulfate (biuret test)
- metabolic role: proteins are used as ensymyes to control reactions ,they also form
antibodies to fight infection. some hormones are protein-based and are used to regulate
body reactions
- help to form structures such as skin, hair, nails,
and muscles
- proteins contain the elements carbon, hydrogen
,oxygen and nitrogen
- minerals
- plants need calcium to hold the cell wall together, and magnesium for chlorophyll
- animals need calcium for bones and teeth and iron for haemoglobin
- plants need calcium to hold the cell wall together, and magnesium for chlorophyll
- lipid
- the molecules of a lipid are made up of a glycerol molecule and 3
fatty acid molecules
- fats solid at room tempeture
- oils liquid at room tempeture
- phospholipids- used to make up cell
membrane & is critical for the function of cells
- fats solid at room tempeture
- the molecules of a lipid are made up of a glycerol molecule and 3
fatty acid molecules
- vitamins
- vitamin c
- water soluble ,
source:veg,fresh fruit.
metabolic role: forms
connective tissue ,bones
+teeth. helps healing and
immune system.
deficiency: scurvy(poor
skin,bleeding gums,bad
teeth
- water soluble ,
source:veg,fresh fruit.
metabolic role: forms
connective tissue ,bones
+teeth. helps healing and
immune system.
deficiency: scurvy(poor
skin,bleeding gums,bad
teeth
- vitamin d
- fat-soluble
source:liver,fish oils
,milk, made in skin.
metabolic role: helps
absorb calcium for
teeth and bones.
deficiency : rickets in
children, osteomalacia
in adults
- fat-soluble
source:liver,fish oils
,milk, made in skin.
metabolic role: helps
absorb calcium for
teeth and bones.
deficiency : rickets in
children, osteomalacia
in adults
- vitamin c
- food tests:
- rub a piece of butter(fat) and a
drop of water on brown paper. fat
is present in butter, brown paper
turns translusent
- starch: brick-red to blue black. (iodine solution)
- protein: blue-lilac (biuret solution)
- rub a piece of butter(fat) and a
drop of water on brown paper. fat
is present in butter, brown paper
turns translusent
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