2.3 Macronutrients: Carbohydrates Part 2 Flashcards
What are the three types of fiber?
- insoluble
- soluble
- functions
Which type of fiber is non-fermentable?
insoluble
Which type of fiber is viscous?
soluble
What fiber can dissolve in water? Which cannot?
can dissolve = soluble
cannot dissolve = insoluble
Which fiber is broken down by intestinal bacteria? Which is not?
broken down = soluble
not broken down = insoluble
What is the purpose of insoluble fiber?
increases stool mass and speeds its passage through the large intestine
What is the purpose of soluble fiber?
slows glucose absorption and can lower cholesterol
What is functional fiber?
fiber that is added to a product and promotes intestinal health
What are examples of good sources of carbohydrates?
fruits
veggies
breads
pasta
dairy
What are examples of bad carbohydrates?
honey
jams
jellys
table sugar
sodas
dessert
What are good sources of starch?
dried beans
peas
whole grains
What is the rule of thumb regarding starch and fiber?
foods high in starch are often good sources of fiber
What starts digestion of carbohydrates in the mouth?
salivary amylase - breaks down into disaccharides
What occurs during digestion of carbohydrates in the stomach?
acid deactivates amylase and prevents further digestion
What occurs during digestion of carbohydrates in the small intestine?
pancreas released pancreatic amylase to break down polysaccharides into di- and mono-
