IB6.1 Absorption

Large molecules must be digested so they are [?] enough to be absorbed

Lipids can be absorbed by simple diffusion because they are...

• Small

• Hydrophobic

• Non-polar

• Higher concentration in the ileum

Water is absorbed by osmosis through a protein

• Channel

• Carrier

• Pump

• Phospholipid

Molecules that have to be actively transported are...

• Glucose

• Fructose

• Glycerol

• Amino acids

Pinocytosis is a type of [?]

Which molecules are absorbed by facilitated diffusion?

• Monosaccharides

• Fatty acids

• Water

• Amino acids

Which shows the correct order of ileum layers, starting in the lumen?

• mucosa - circular muscle - longitudinal muscle - serosa - epithelium

• epithelium - mucosa - circular muscle - longitudinal muscle - serosa

• serosa -> longitudinal muscle - circular muscle - mucosa - epithelium

• epithelium - mucosa - longitudinal muscle - circular muscle - serosa