Chapter 5 Flashcards
Simple carbs (saccharides)
monosaccharides and disaccharides
Complex carbohydrates
Polysaccharides, glycogen, fiber
Hexoses
Glucose (blood sugar)
Fructose (part of sucrose)
Galactose (part of lactose)
Sugar alcohols (xylitol, mannitol, and sorbitol)
Pentoses
Ribose and deoxyribose (important for nucleotide-rna and dna- synthesis
Disaccharides
2 monosaccharides linked by a condensation reaction
Maltose
minor disaccharide
glucose and glucose connected with an alpha bond
Lactose
galactose and glucose connected with a beta bond (milk sugar)
Sucrose
glucose and fructose connected with an alpha bond (table sugar, fruit sugar)
Oligosaccharides
contain 3-10 monosaccharides
cannot be digested by mammalian enzymes, but gut microbes will digest some resulting in farts (raffinose and starchyose)
Polysaccharides
contains many glucose molecules
alpha or beta bond determine digestibility
Starch
amylose (straight chain) and amylopectin (branched chain)
Glycogen
storage form of glucose in human body