Digestion Flashcards
(20 cards)
What are carbohydrates used for?
To provide energy
What is protein used for?
Growth and repair
What are fats used for?
For insulation, energy and store energy.
What are vitamins and minerals needed for?
To maintain health
What is fibre needed for?
To help food move through the gut
What is water needed for?
To make bodily fluids and needed for cells
What is the food test for starch?
Iodine solution turns from
orange/brown to blue black
What is the food test for sugar?
Benedict’s solution turns from:
blue to green /yellow/brick red
What is the food test for fats/lipids?
Add water to ethanol and shake. If present turns cloudy white.
What is the food test for protein?
Biuret reagent changes from blue to purple.
What is respiration?
A chemical reaction that takes place in all living cells to release energy in food.
What is energy released from food used for?
- muscle contraction
- keeping warm
- making new cells
What factors affect the amount of energy a person needs
Gender, age, amount of daily activity
What is energy in food measured in?
Kilojoules (kJ)
What does an iron deficiency cause?
Anemia (lack of red blood cells)
What can an iodine deficiency cause?
Swelling in the neck
What can a vitamin A deficiency cause?
Blindness
What can a Vitamin C deficiency cause?
Scurvy, bleeding gums
What does a vitamin D deficiency cause?
Rickets, which makes the legs bow out.
