Lab Exer 1 Anatomy of the Digestive System
... The digestive system physically and chemically converts complex food molecules into smaller, simpler molecules. These molecules then are absorbed, transported by the circulatory system and used by the cells of the body. The primary organ is the alimentary canal, which is a continuous tube extending ...
... The digestive system physically and chemically converts complex food molecules into smaller, simpler molecules. These molecules then are absorbed, transported by the circulatory system and used by the cells of the body. The primary organ is the alimentary canal, which is a continuous tube extending ...
24-1
... • Deamination = removes NH2 (amine group) from amino acids so can use what is left as energy source • Converts resulting toxic ammonia (NH3) into urea for excretion by the kidney • Synthesizes plasma proteins utilized in the clotting mechanism and immune system • Convert one amino acid into another ...
... • Deamination = removes NH2 (amine group) from amino acids so can use what is left as energy source • Converts resulting toxic ammonia (NH3) into urea for excretion by the kidney • Synthesizes plasma proteins utilized in the clotting mechanism and immune system • Convert one amino acid into another ...
Digestive System Processes
... which large lipid globules are broken down into several small lipid globules. These small globules are more widely distributed in the chyme rather than forming large aggregates. Lipids are hydrophobic substances: in the presence of water, they will aggregate to form globules to minimize exposure to ...
... which large lipid globules are broken down into several small lipid globules. These small globules are more widely distributed in the chyme rather than forming large aggregates. Lipids are hydrophobic substances: in the presence of water, they will aggregate to form globules to minimize exposure to ...
Digestion and absorption of nutrients
... Nutrient absorption in the small intestine • Most absorption occurs in the SI – 90% • Provides the surface area equivalent to a tennis court! • Nutrients are trapped in folds of the intestinal wall and absorbed through the microvilli • Each villus contains blood vessels and a lymph vessel which ...
... Nutrient absorption in the small intestine • Most absorption occurs in the SI – 90% • Provides the surface area equivalent to a tennis court! • Nutrients are trapped in folds of the intestinal wall and absorbed through the microvilli • Each villus contains blood vessels and a lymph vessel which ...
Chapter 3 – Digestion, Absorption, and Transport Multiple Choice
... Your cousin Miguel is extolling the virtues of his new dietary supplement. He says that it contains enzymes that will make him healthier, and he asks for your opinion. You assure him that the enzymes a. will increase the digestibility of the foods he eats. b. could likely interfere with the enzymes ...
... Your cousin Miguel is extolling the virtues of his new dietary supplement. He says that it contains enzymes that will make him healthier, and he asks for your opinion. You assure him that the enzymes a. will increase the digestibility of the foods he eats. b. could likely interfere with the enzymes ...
Digestion and the Digestive System
... The parietal cells in the stomach use this pump to secrete gastric juice. These cells transport protons (H+) from a concentration of about 4 x 10-8 M within the cell to a concentration of about 0.15 M in the gastric juice (giving it a pH close to 1). Small wonder that parietal cells are stuffed with ...
... The parietal cells in the stomach use this pump to secrete gastric juice. These cells transport protons (H+) from a concentration of about 4 x 10-8 M within the cell to a concentration of about 0.15 M in the gastric juice (giving it a pH close to 1). Small wonder that parietal cells are stuffed with ...
The Digestive System
... the liver, gallbladder, and duodenum for the flow of bile (hepatic duct, cystic duct, and ...
... the liver, gallbladder, and duodenum for the flow of bile (hepatic duct, cystic duct, and ...
Presentation 8 - Digestive System
... • Very alkaline emulsifier produced by the liver and exported via the common hepatic duct • The common hepatic duct fuses with the cystic duct (from the gall bladder) to form the bile duct • Bile is then transported to the duodenum • Bile salts are recycled in the gut, and reused in digestion ...
... • Very alkaline emulsifier produced by the liver and exported via the common hepatic duct • The common hepatic duct fuses with the cystic duct (from the gall bladder) to form the bile duct • Bile is then transported to the duodenum • Bile salts are recycled in the gut, and reused in digestion ...
Ch 14 Review
... 3. From the lumen to the outermost layer of the alimentary canal list the 4 layers, state the type of tissue(s) that make up these layers, and the function of these layers. ...
... 3. From the lumen to the outermost layer of the alimentary canal list the 4 layers, state the type of tissue(s) that make up these layers, and the function of these layers. ...
Human Biology: Digestive System - TangHua2012-2013
... Describe the functions of anaerobic bacteria in the colon Describe how the small intestine is specialized for chemical and physical digestion and absorption Describe the structure of the villus, including microvilli, and explain the functions of the capillaries and lacteals within it ...
... Describe the functions of anaerobic bacteria in the colon Describe how the small intestine is specialized for chemical and physical digestion and absorption Describe the structure of the villus, including microvilli, and explain the functions of the capillaries and lacteals within it ...
Gastro51-IntegrationOfGIFunction
... Swallowing the salivary secretions helps to buffer this acid Decreased HCO3 Low level of motility (graph B) Burst of activity = IMMC Occurs every hour or so in response to the release of motilin form the small intestine SMALL INTESTINE Empty due to IMMC (graph D) Contractions due to IMM ...
... Swallowing the salivary secretions helps to buffer this acid Decreased HCO3 Low level of motility (graph B) Burst of activity = IMMC Occurs every hour or so in response to the release of motilin form the small intestine SMALL INTESTINE Empty due to IMMC (graph D) Contractions due to IMM ...
to find the lecture notes for lecture 17 Digestive system click here
... -these enzymes are not secreted into the SI lumen but are expressed on the surface of the absorptive cell -duodenum is also the site for secretion of the pancreatic juice: -trypsin, chymotrypsin, elastase, carboxypeptidase -1-2 qt./day------ at pH 7.6 -Enzymes are made in the pancreas as inactive fo ...
... -these enzymes are not secreted into the SI lumen but are expressed on the surface of the absorptive cell -duodenum is also the site for secretion of the pancreatic juice: -trypsin, chymotrypsin, elastase, carboxypeptidase -1-2 qt./day------ at pH 7.6 -Enzymes are made in the pancreas as inactive fo ...
This assessment is worth 95 points.
... Synthesizes lipoproteins which are necessary for lipid transport. P450 enzyme system is involved in detoxification of potentially harmful substances. Fixed macrophages phagocytize obsolete red blood cells and foreign material. All of these are functions of the liver. ...
... Synthesizes lipoproteins which are necessary for lipid transport. P450 enzyme system is involved in detoxification of potentially harmful substances. Fixed macrophages phagocytize obsolete red blood cells and foreign material. All of these are functions of the liver. ...
The digestive system-
... • This helps to keep our body___________ • The __________ in your large intestine feed on undigested material and make vitamin __ and two types of ___ vitamins • The dried up, undigested mass leaves the body through the _______ and______ ...
... • This helps to keep our body___________ • The __________ in your large intestine feed on undigested material and make vitamin __ and two types of ___ vitamins • The dried up, undigested mass leaves the body through the _______ and______ ...
Chapt08 Lecture 13ed Pt 2
... The liver and gallbladder • The liver is a large metabolic organ that lies under the diaphragm and is made of 100,000 lobules. • It filters blood from the GI tract, thus acting to remove poisons and detoxify the blood. • The liver removes iron, vitamins A, D, E, K, and B12 from the ______ and stores ...
... The liver and gallbladder • The liver is a large metabolic organ that lies under the diaphragm and is made of 100,000 lobules. • It filters blood from the GI tract, thus acting to remove poisons and detoxify the blood. • The liver removes iron, vitamins A, D, E, K, and B12 from the ______ and stores ...
Chapter 24
... Absorption: Movement from tract into circulation or lymph Elimination: Waste products removed from body ...
... Absorption: Movement from tract into circulation or lymph Elimination: Waste products removed from body ...
The digestive system multiple choice questions
... 10. The structure leading to the stomach is called? a) Pharynx b) Epiglottis c) Oesophagus d) Larynx 11. State what the oesophagus connects to? a) Throat to lungs b) Duodenum to gall bladder c) Pancreas to duodenum d) Throat to stomach 12.On swallowing, the food leaves the mouth as a round mass call ...
... 10. The structure leading to the stomach is called? a) Pharynx b) Epiglottis c) Oesophagus d) Larynx 11. State what the oesophagus connects to? a) Throat to lungs b) Duodenum to gall bladder c) Pancreas to duodenum d) Throat to stomach 12.On swallowing, the food leaves the mouth as a round mass call ...
Digestive System
... • Secretes 1L of pancreatic fluid into small intestine daily • Pancreatic fluid contains enzymes to digest carbohydrates, lipids, proteins ...
... • Secretes 1L of pancreatic fluid into small intestine daily • Pancreatic fluid contains enzymes to digest carbohydrates, lipids, proteins ...
1digestiveSystemOverview
... • Although digestion in the small intestine is aided by digestive juices (enzymes) secreted by its own cells, most of the chemical digestion (breakdown) of the macromolecules, carbohydrates, lipids and protein, occurs as a result of secretions produced by the liver and the pancreas that empty into t ...
... • Although digestion in the small intestine is aided by digestive juices (enzymes) secreted by its own cells, most of the chemical digestion (breakdown) of the macromolecules, carbohydrates, lipids and protein, occurs as a result of secretions produced by the liver and the pancreas that empty into t ...
The Digestive system
... – Carbohydrates and proteins are only partially digested – No fat digestion has taken place • Digestion continues in the small intestine – Chyme is released slowly into the duodenum – Because it is hypertonic and has low pH, mixing is required for proper digestion – Required substances needed are su ...
... – Carbohydrates and proteins are only partially digested – No fat digestion has taken place • Digestion continues in the small intestine – Chyme is released slowly into the duodenum – Because it is hypertonic and has low pH, mixing is required for proper digestion – Required substances needed are su ...
Notes – Digestion – Teacher
... n a nutshell... The body uses a variety of small molecules (amino acids, fatty acids, glucose) for its metabolic needs. Food is mechanically and chemically broken down into these molecules during digestion, after which they can be taken up by body cells through the separate process of absorption. ...
... n a nutshell... The body uses a variety of small molecules (amino acids, fatty acids, glucose) for its metabolic needs. Food is mechanically and chemically broken down into these molecules during digestion, after which they can be taken up by body cells through the separate process of absorption. ...
Digestive_System
... * pepsin is the most important of these enzymes * pepsin is secreted as pepsinogen and is snipped off when it comes in contact with the hydrochloric acid secreted by the parietal cells * begins digestion of nearly all types of dietary proteins * secretes Gastric lipase that begins the digestion of t ...
... * pepsin is the most important of these enzymes * pepsin is secreted as pepsinogen and is snipped off when it comes in contact with the hydrochloric acid secreted by the parietal cells * begins digestion of nearly all types of dietary proteins * secretes Gastric lipase that begins the digestion of t ...
Digestive System
... • Very alkaline emulsifier produced by the liver and exported via the common hepatic duct • The common hepatic duct fuses with the cystic duct (from the gall bladder) to form the bile duct • Bile is then transported to the duodenum • Bile salts are recycled in the gut, and reused in digestion ...
... • Very alkaline emulsifier produced by the liver and exported via the common hepatic duct • The common hepatic duct fuses with the cystic duct (from the gall bladder) to form the bile duct • Bile is then transported to the duodenum • Bile salts are recycled in the gut, and reused in digestion ...
11 Digestive Physiology
... In the stomach, the material is further broken down physically and chemically by stomach acid and by enzymes that can operate at an extremely low pH. In the duodenum, buffers from the pancreas and liver moderate the pH of the arriving chyme, and various digestive enzymes are secreted by the pancreas ...
... In the stomach, the material is further broken down physically and chemically by stomach acid and by enzymes that can operate at an extremely low pH. In the duodenum, buffers from the pancreas and liver moderate the pH of the arriving chyme, and various digestive enzymes are secreted by the pancreas ...
presentation source
... • absorption - the digested products and nutrients move across the wall of the small intestine to the blood • elimination - indigestible materials & waste products are moved to the end of the tract and eliminated ...
... • absorption - the digested products and nutrients move across the wall of the small intestine to the blood • elimination - indigestible materials & waste products are moved to the end of the tract and eliminated ...
Bile acid
Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates. Different molecular forms of bile acids can be synthesized in the liver by different species. Bile acids are conjugated with taurine or glycine in the liver, forming bile salts.Primary bile acids are those synthesized by the liver. Secondary bile acids result from bacterial actions in the colon. In humans, taurocholic acid and glycocholic acid (derivatives of cholic acid) and taurochenodeoxycholic acid and glycochenodeoxycholic acid (derivatives of chenodeoxycholic acid) are the major bile salts in bile and are roughly equal in concentration. The conjugated salts of their 7-alpha-dehydroxylated derivatives, deoxycholic acid and lithocholic acid, are also found, with derivatives of cholic, chenodeoxycholic and deoxycholic acids accounting for over 90% of human biliary bile acids.Bile acids comprise about 80% of the organic compounds in bile (others are phospholipids and cholesterol). An increased secretion of bile acids produces an increase in bile flow. The main function of bile acids is to facilitate the formation of micelles, which promotes digestion and absorption of dietary fat, but they are increasingly being shown to have hormonal actions throughout the body.