Food Flashcards
Breaking down food
Ingestion Digestion Absorption Assimilation Egestion
The important foods
Carbohydrates Proteins Lipids Vitamins Minerals Fibre Water
Peristalsis
The way in which food moves through the gut
Enzymes
Break down food
Bile
Released to neutralise stomach acid and emulsify fats
Food
Used to grow, repair, fight diseases, stay healthy
Test for starch
Reddish brown iodine solution turns blue black
Test for sugar (glucose)
Blue Benedictus solution turns orange red when heated with sugars
Test for energy
Can be measured by burning it and using it to heat up a measured sample of water
Carbohydrates
are/of/do/in
Sugars and starches
Carbon, hydrogen, oxygen
energy
Bread, pasta, rice
Proteins
are/of/do/in
Long chains of amino acids
Carbon, hydrogen, oxygen, nitrogen, sulfur
Body building
Meat, fish, cheese
Lipids
are/of/in
Stored energy
Fatty acids, glycerol, carbon, hydrogen, oxygen
Butter, corn oil, eggs
Vitamin A
Make chemicals in retina
Protects eye surface
And connective tissue
Vitamin A found in
Fish liver oils
Vitamin C
Sticks together cell lining surfaces in the body
Vitamin C found in
Fruit, vegetables
Vitamin D
Helps bones absorb calcium and phosphorus
Vitamin D found in
Fish liver oils, cream, butter
Calcium
Makes bones and teeth
Calcium found in
Dairy products, fish, bread, vegetables
Iron
Makes haemoglobin in red blood cells to carry oxygen
Water
Breaks up large molecules by hydrolysis
Carries substances around the body
Fibre
Gives muscles something to work on, absorbs water
Types of enzymes
Carbohydrase
Protease
Lipase
