Water and Carbohydrates Flashcards
What does dipolar mean?
Two H atom and one O atom
Has no charge
How strong is Hydrogen bonding?
Hydrogen bonding is weak
What is specific heat capacity?
The energy required to heat 1 kg by 1 C
What is latent heat of vaporisation?
The energy required to change a liquid to a gas
In water due to lots of H bonds it requires a lot of energy
What is cohesion and surface tension?
Due to H bonds water molecules are cohesive so they can be pulled up and stick together
When water meets air it is pushed back which is surface tension
What is a solvant?
It means it can dissolve substances
What is a metabolite?
It means it is involved in digestive processes
What is a polymer?
Monomers joined together by condensation reactions
What are carbohydrates compiled of?
C, H, and O
What are monosaccharides?
Soluble molecules that carbohydrates are composed of
Glucose, galactose and fructose
What is the structural formula of alpha glucose?
5 carbons in a hexagon with an oxygen molecule
On carbon 4 there is a hydrogen atom on top and a OH molecule on the bottom (the same on carbon 1)
On carbon 2 there is hydrogen on the top and bottom
On carbon 5 there is CH2OH
On carbon 3 there is OH on the top and hydrogen on the bottom
What is the structural formula of beta glucose?
The same as alpha but on carbon 1 there is OH on the top and hydrogen on the bottom
Carbon 2 has hydrogen on the top and OH on the bottom
What is a disaccharide?
When to monosaccharides are joined together by a glyosidic bond
What are three examples of disaccharides?
Maltose is two glucose
Sucrose is glucose and fructose
Lactose is glucose and galactose
What is a polysaccharide?
2 or more disaccharides joined together
