Flashcards in Necessary Information Deck (11)
Water is the main component of what parts of the body?
The cell liquid
What is the elemental composition of water ?
Hydrogen and Oxygen in the ratio 2:1 (H2O)
What are the properties of water?
Boils at 100 degrees Celsius
Freezes at 0 degrees Celsius
Can be solid, liquid or gas
Absorbs and retains heat
What are the functions of water?
Removes waste products
Makes up 92% of blood plasma
Provides the minerals calcium and fluoride
Regulates body temperature at 37 degrees Celsius
Involved in the hydrolysis of nutrients during digestion
How does water prevent constipation?
It makes stools soft and easy to pass
How does water remove waste from the body?
Waste is removed through the kidneys as urine
Water makes up 92% of blood plasma, what function does this carry out?
It transports nutrients, oxygen, carbon dioxide, hormones and enzymes around the body
What minerals does water provide?
Calcium and fluoride
List four sources of water
Tap or bottles water
Beverages such as milk, tea, coffee and juices
Fruit and vegetables
What is the recommended daily allowance of water?
Two to three litres of water or eight glasses a day