McEwan - nutrient digestion Flashcards
6 primary dietary constituents
carbs
protein
fat
vitamin
water
minerals
3 monosaccarides
glucose
galactose
fructose
carb digestion is the breakdown of products of complex
CHOs which are absorbed by the small intestine
disaccharide are two
monosaccharides linked together by a glycosidic bond
lactase breakdown lactose into
glucose and galactose
sucrase is an enzymes that breakdown sucrose into
glucose and fructose
maltase is an enzymes that breakdown maltose into
glucose and glucose
what is alpha amylase?
glucose linked in straight chains
glucose monomers are linked by ……. bonds and are hydrolysed by ………
alpha,1-4 glycosidic bonds
amylase (pancreatic and salivary)
enzymatic digestion of polysaccharides is by
such as cellulose, starch, glycogen
alpha amylase
proteins are polymers of ……. linked together by …….
amino acids
peptide bonds
small proteins that are 3-10 amino acids in length are often called
peptides
enzymes which hydrolyse peptide bonds and reduce proteins or peptides to amino acids are called
proteases or peptidases
all fat digestion occurs in the ……. by ………
small intestine
pancreatic lipase
triglycerol broken down by lipase is converted into
monoglyceride and 2 fatty acids