Download Nutrients and Their Functions Solutions File

SBI3U – Animals: Structure and Function
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NUTRIENTS AND THEIR FUNCTIONS
Read sec 9.2 (pgs 400-405) and complete the following table:
Nutrient
Function
- primary source of energy
-structural material of plant cell walls
Source
Cereal, rice, wheat, potatoes, etc.
- store excess energy (fat)
- insulation
- cell membrane (phospholipids)
Meat, oils, butter, etc.
Carbohydrates
Lipids
Note: cholesterol (good vs. bad)
Proteins
Water
Vitamins
Minerals
- for building, repair and maintenance tissues
(blood, muscles, bones)
- structural and functional components of the
cell
- enzymes speed up biochemical reactions in
cells
- antibodies
- in cell membrane
- universal solvent – all biochemical reactions
in water:
- to dissolve, to transport and to carry
biomacromolecules
Meat, fish, eggs, cheese, milk, etc.
- help in biochemical reactions
- need for strong bones (e.g., Ca –
osteoporosis)
- prevent some disorders (vitamin A deficiency
– night blindness)
- can be water soluble (C, B) and fat soluble (A,
D, E, K)
- used to carry metabolic processes
- to build and repair tissues
- for formation of bones (Ca and P)
- for nerve impulse transmission and in muscle
contraction (Na)
- component of blood protein haemoglobin
(Fe)
- help form bones and teeth & keep bones and
muscles strong (Mg)
Cheese, vegetables (carrots), fruits
Vegetables, fruits, drinks, juices etc.
Vegetables, fruits, grain products,
milk products, meat