9.3 Absorption Flashcards
Absorption is..
soluble and simple food molecules enter the circulatory system
Adaptations of Ileum and Villus for Absorption
- long ileum
- inner wall of ileum highly folded with numerous villi
- numerous microvilli on epethelial cells of villi
What is the function of these adaptations?
Increase surface area for higher absorption rate
Adaptations of Ileum and Villus for Absorption
Epethelial layer of villus is thin. (one cell thick)
What is the function of this adaptations?
Reduces the diffusion distance
for nutrients
Adaptations of Ileum and Villus for Absorption
Increase surface area for higher absorption rate
Name the adaptations that serve this function.
- long ileum
- inner wall of ileum highly folded with numerous villi
- numerous microvilli on epethelial cells of villi
Adaptations of Ileum and Villus for Absorption
Reduces the diffusion distance
Name the adaptation that serve this function.
Epethelial layer of villus is thin. (one cell thick)
Method of food absorption in the ileum
Fructose
absorbs into & method of absorption
- blood capillaries
- facilitated diffusion
Method of food absorption in the ileum
Glucose and galactose
absorbs into & method of absorption
- blood capillaries
- active transport
Method of food absorption in the ileum
Amino acids
absorbs into & method of absorption
- blood capillaries
- active transport
Method of food absorption in the ileum
Vitamin B and C
absorbs into & method of absorption
- blood capillaries
- absorbed with water
Method of food absorption in the ileum
Water
absorbs into & method of absorption
- blood capillaries
- osmosis
Method of food absorption in the ileum
Fatty acids & glycerol
absorbs into & method of absorption
- lacteal
- simple diffusion
Method of food absorption in the ileum
Vitamins A, D, E, K
absorbs into & method of absorption
- lacteal
- simple diffusion
Structure of villus in ileum
refer to workbook pg 122 / textbook pg151 / SAP pg192 ‼
bcuz i cant do that here ..
