Food Absorption
Colon
Oesophagus
Small intestine
Stomach
They possess micro-villi
They increase the surface area
They are supplied with blood capillaries and lacteal vessels
They only participate in absorption of fats
Digestion, Ingestion, Assimilation of food, Defecation and Absorption
Ingestion, Digestion, Absorption, Assimilation of food and Defecation
Defecation, Absorption, Digestion, Assimilation of food and Ingestion
Assimilation of food, Absorption, Ingestion, Digestion and Defecation
Lacteals / liver / hepatic vein / superior vena cava / heart
Lacteals / lymphatic system / superior vena cava / heart
Capillaries / hepatic portal vein / liver / hepatic vein / inferior vena cava / heart
Capillaries / hepatic vein / liver / hepatic portal vein / superior vena cava / heart
Fatty acids and glycerol
Fatty acids and amino acids
Glucose and fructose
Glucose and galactose
Lining of the epithelial wall has many convolutions to increase absorption.
Feces are expelled outside the body by the contractions of the anal muscles.
The mucosa layer secretes mucus to facilitate the exit of feces.
Presence of Bacteria which break down undigested food remains into simple substances.
Vitamins D and C in (A) / glycerol and minerals in (B)
Vitamin D and glycerol in (B) / vitamin C and minerals in (A)
Vitamins D, vitamin C and minerals in (A) / glycerol in (B)
Minerals and glycerol in (A) / vitamins D and C in (B)
Ingestion and digestion
Secretion and pushing food forwards
Absorption and defecation
All of the above
Photosynthesis process requires energy.
Oxidation of free fatty acids requires energy.
Adding an amino acid to a polypeptide chain requires energy.
All condensation reactions are anabolic.
Water and mineral salts
Amino acids and glucose
Glucose and vitamins
Fatty acids and glycerol
The process of releasing digestive chemicals into the gastro-intestinal tract
The process of physically breaking down foodstuffs
The process of moving food components from the lumen of the gastro-intestinal tract into body cells
The process of removing waste materials from the gastro-intestinal tract
Active transport and membrane diffusion
Passive diffusion and imbibition
Osmosis and active transport
Membrane diffusion
It only involves the processes that build up the large molecules in the body.
It only involves the processes that break down the small molecules in the body.
It only involves the processes that break down the large molecules in the body.
It involves all of the processes that break down and build up molecules in the body.
Metabolic
Anabolic
Catabolic
Respiratory
Dehydration reaction
Carbohydrate storage
Hydrolysis reaction
Condensation reaction
Fat-soluble vitamins (A, D, E, and K) are absorbed along with dietary proteins.
Water moves down its concentration gradient from the chyme into epithelial cells.
In general all minerals that enter the intestine are absorbed, whether you need them or not.
The free fatty acids and monoacylglycerides (glycerol molecules) that enter the epithelial cells are reincorporated into triglycerides.
A lacteal is surrounded by blood capillaries in the mucosal layer of the ileum.
Products of digestion are transferred to the blood and lymph
There are tiny projections from the epithelial cells called micro-villi
There is an outer covering of multi-layers epithelial cells.
Vitamin A and glucose are in (A) / Vitamin C and emulsified fats are in (B)
Vitamins A and C are in (B) / glucose and emulsified fats are in (A)
Glucose and emulsified fats are in (B) / vitamins A and C are in (A)
Emulsified fats and vitamin A are in (B) / vitamin C and glucose in (A)
Lymphatic system
Superior vena cava directly
Inferior vena cava directly
Liver
Decreases in size within very narrow limits
Remains same size
Increases in size within very narrow limits
Produces products of less energy-rich than their simple precursors.
Used in catabolic processes that generates energy.
Used in anabolic processes that creates biologically important molecules such as phospholipids.
Fatty acids and glycerol are stored in adipose fat in complex forms such as triglycerides.
Can be used to make glucose.
Some amino acids are recycled to make new proteins.
Some are used as a source of energy.
Some are used to synthesize nitrogen containing compounds.
All the above.
Kidney, Liver
Muscle cells, Brain cells
Pancreas, adipose tissue
Muscle cells, Liver
(B) large intestine / (A) duodenum / (C) hepatic vein
(C) inferior vena cava / (B) pancreas / (A) lacteal vessel
(A) hepatic portal vein / (C) superior vena cava (B) liver
(A) hepatic vein / (B) liver / (C) superior vena cava
Lymph, hepatic vein
Lymphatic vessels, lacteals
Mucosa, hepatic vein
Blood stream, hepatic portal vein