carbohydrates 1 Flashcards
what does it mean if carbs are a treshold
they have 3 functions
energy storage
source of energy
structural units
what are the two reducing sugars
maltose
lactose
what is the reducing sugar
sucrose
what does it mean if a sugar is reducing
it can donate electrons to reduce other molecules
what shape chain will triose and tertrose sugars have
straight chains
what structure chain will pentose and hexose sugars
usually ring or cyclic form
what does it mean if b glucose and alpha glucose are isomers
Beta and alpha have the same atoms, however
alpha - hydroxyl group is below the hydrogen atom on carbon 1
Beta- hydroxyl group is above the hydrogen atom on carbon 1.
what type of sugars are glucose
Hexose
what bond is used to join two glycosidic bonds
1,4 glycosidic bonds
what reaction joins two glucose molecules
condensation- a reaction where two molecules join with the removal of water
what reaction breaks the glycosidic bond between two glycosidic bonds
Hydrolysis reaction which splits two molecules with the addition of water.
what elements are in carbohydrates
CHO
what elements are in proteins
CHONS
what elements are in nucleic acids
CHONP
what is the difference between deoxyribose and ribose sugars
ribose has 2 hydroxyl groups on the bottom
deoxyribose has one hydrogen atom and 1 carboxyl group on the bottom
