Food Flashcards
Name a carbohydrate found in the cell wall of plant cells
Cellulose
2 functions of water in a living organism
- Good solvent
2. Good body heat regulator
How do fats differ from oils at room temperature
- Fats are solid
2. Oils are liquid
Name a fat-soluble vitamin, source and deficiency?
- Vitamin D
- Sun
- Rickets
Name a water-soluble vitamin, the source and deficiency?
- Vitamin C
- Oranges
- Scurvy
Trace elements
iron, copper and zinc
Two minerals required by human body and their function
- Calcium- formation of bones and teeth
2. Iron- forms structure of haemoglobin
Name the test for reducing sugar
Benedict’s test
Name a structural carbohydrate
cellulose
Name a chemical always found in proteins but not in carbohydrates
sulfur
Name a test for protein
Biuret’s test
Small molecules joined to make a protein are called
amino acids
what is triglyceride?
Glycerol and 3 fatty acids
For which food type did you use brown paper?
Test for fats
What colour indicates positive result for reducing sugar?
red
What colour indicates positive result for protein?
Lilac
What colour indicates positive result for starch?
blue black
What colour indicates positive result for Lipids?
translucent stain
one way in which carbohydrates differ from fats
- Carbohydrates are used for metabolic purposes whereas fats help absorb vitamins
Name an important group of biomolecules that plants make from nitrates
proteins
