Exam 4: Biomolecules Flashcards
which places are carbohydrates broken down? (3)
- mouth
- duodenum
- small intestine
which organ is not responsible for digestion of carbs?
stomach
which molecules are broken down in duodenum?
stomach
which molcules are broken down in duodenum? (2)
- disaccharides
2. peptides
what molecules are made as a result at the end of small intestine? (2)
- fatty acids
2. monoglycerides
through what type of transportation is glucose absorbed?
symport
how is glucose absorbed through the sodium-potassium pump?
cell reabsorbs sodium and glucose at the same time through the sodium-potassium pump
small intestine: transport of lipids: what structure holds bile salts?
micelles in intestinal lumen
small intestine: transport of lipids: 3 components of enterocytes
- bile salt
- fatty acids
- monoglycerides
transport of lipids: ____ coat suspends the triglycerides and form the chylomicron?
protein coat
transport of lipids: the protein coat suspends the ______ and form the chylomicron
triglycerides
transport of lipids: the protein coat suspends the triglycerides and form the ____
chylomicron
transport of lipids: what forms the micelles?
lumen
transport of lipids: what is an enterocyte?
intestinal epithelial cell
transport of lipids: where is chylomicron located?
lacteals (lymphatic vessels)
where do all nutrients go after absorption in the small intestine?
liver
where are lipids absorbed?
lacteal (lymphatic vessels)
3 types of lipoproteins in order from most to least % lipid
- VLDL
- LDL
- HDL
how do amino acids enter the cell?
symport
how do amino acids enter the liver??
capillary circulation
5 ions that are actively transported
- sodium
- potassium
- calcium
- magnesium
- phosphate
transport of lipids: what are micelles made of?
bile salts
transport of lipids: what structure are protein coated?
chylomicrons
transport of lipids: where are chylomicrons located?
enterocytes and lacteals
