bio quiz digestion Flashcards
Name the 3 polymers/macromolecules
carbohydrates, proteins, fats
What are the enzymes needed to break PROTEINS down into what monomer
need enzyme pepsin, breaks into amino acids
What are the enzymes needed to break FATS down into what monomer?
need enzyme lipase, breaks into glycenol and fatty acids
What are the enzymes needed to break carbohydrates down into what monomer
need enzyme amylase, breaks into simple sugars
what r the 4 indicators
Benedict, Biuret, Iodine, Litmus
what does Benedict indicate
When heated it turns yellow, turns red in simple sugars
what does Biuret indicate
blue-purple in polypeptide, pink in amino acids
what does Iodine indicate
turns blue/purple/black in starch
what does Litmus indicate
blue in base, pink in acid
where does mechanical digestion take place in the body
the mouth, by chewing the food. Also bile, which liver creates to help the digestion of the food.
where does CHEMICAL digestion take place in the body
begins in mouth with saliva, peristalsis, then stomach and intestines
where is amylase located (when do they act on the food)
salivary glands, acts on carbohydrates
where is pepsin located (when do they act on the food)
stomach with chief cells, low pH of 2 activates it. acts on proteins
where is lipase located (when do they act on the food)
pancreas and stomach. pancreatic lipase help dissolve fats in duodenum
what do chief cells do
synthesis and release of pepsinogen
