digestion Flashcards
what happens during digestion
large molecules are broken down into smaller molecules
what can smaller molecules do that larger ones cant
cross cell membranes
what happens when small molecules cross a membrane
they get absorbed into the blood to be transported around body
what are carbohydrates broken down into
disaccharides then monosaccharides
what are fats broken down into
fatty acids and monoglycerides
what are proteins broken down into
amino acids
what do digestive enzymes do
break down the biological molecules in food
what is amylase
it is a digestive enzyme
what does amylase do
catalyses the breakdown of starch
how does it break down starch
catalysing the hydrolysis reaction that breaks the glycosic bonds in starch
what does the breakdown of starch produce
maltose
where is amylase produced
salivary glands
pancreas
what are membrane bound disaccharidases
enzymes that are attached to the cell membranes of epithelial cells
what do membrane bound disaccharidases break down
disaccharides into monosaccharides
name 3 disaccharideases
sucrase
maltase
lactase
