nutrient digestion Flashcards
digestion
enzymatic conversion of complex dietary substances to a form that can be absorbed
types of digestion
luminal and membrane
What is luminal digestion mediated by
pancreatic enzymes secreted into duodenum
what is membrane digestion mediated by
enzymes sitauted at the bruhs border of epithelial cells
absorption
process by which absorbale products of digestion are transferred across apical and basolateral membranes of enterocytes
what are enterocytes
absorptive cells of the intestinal epithelium
name of overall process of digestion and absorption
assimilation
what is the main energy source
starch
what is starch stored as
carbohydrate
what is starch composed of
amylase and amylopectin; polysacharides
difference between poly and mono sachhardies
long chain of carbs composed of monos v simplest form of carbs
what are monosacharides as chemicals
aldehydes/ ketones
what are amylose and amylopectin broken down to
oligosaccharides
what are oligos broken down to
monosachharides
what are examples of monos
fructose and glucose