L6- Carbohydrates 1 Flashcards
catabolism
breakdown of larger molecules into smaller ones
- energy released
catabolic reaction involve
oxidation-release of H atoms
H atoms become
reducing powers
anabolism
synthesises larger important cellular components from smaller molecules
- uses energy
anabolic reactions are
reductive (uses H+ released In catabolism)
sources of catabolism metabolism
amino acid (most excreted)
fatty acids
glucose
alchohol
acetyl co A
is an intermediate for all source of catabolism
Body composition predominately
lipids and proteins (even though we take in more CHO than lipids and proteins)
- we are only 1% CHO
how many stages of catabolism
4
stage 1
breakdown of molecules into molecules that can be absorbed
stage 2
glycoluysis
stage 3
Kreb/TCA cycle
stage 4
electron transport chain
formula of CHO
(CH2O)n
CHO contain which groups
aldos enad ketose groups
monosacchirdes
3-9 carbons
- glucose
- fructose
- galactose
disaccharides
2 units
- sucrose
- maltose
- galactose
oligosaccharides
(3-12 units)
- dextrin
polysacchride
10-1000 units
- glycogen
- starch
- cellulose
glucose is a
major source of sugar in the blood (5mM)