Sep 20, 2018 · NUTR 100 Summative Quiz CH 3.docx. 1 . The majority of digestion & absorption occurs in the : a. Mouth . b. Stomach. c. Small intestine CORRECT ; the majority of chemical digestion occurs in the small intestine. d.
The majority of chemical digestion occurs in the: small intestine. Which of the following CORRECTLY matches an organ of the digestive system with one of its primary functions?
Sep 13, 2018 · Question 25 1 out of 1 points The majority of chemical digestion occurs in which region of the digestion system? Selected Answer: Small …
the region of the digestive tract most responsible for absorption of nutrients is: a. the stomach b. the small intestine c. the large intestine d. the liver
Protein digestion occurs in the stomach and the duodenum through the action of three main enzymes: pepsin, secreted by the stomach, and trypsin and chymotrypsin, secreted by the pancreas. During carbohydrate digestion the bonds between glucose molecules are broken by salivary and pancreatic amylase.
The digestion of certain fats begins in the mouth, where short-chain lipids break down into diglycerides because of lingual lipase. The fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver enables the breakdown of fats into fatty acids.
Carbohydrates are mainly taken in the form of amylose and glycogen. Amylases hydrolyze the long carbohydrate chains that break amylose down into disaccharides, and glycogen into polysaccharides. The enzymes in the small intestine then break these down to monosaccharides.
Proteins are digested by hydrolysis of the carbon–nitrogen (C–N) bond. Peptidases are secreted in an inactive form, to prevent auto-digestion. Endopeptidases cleave the polypeptides at the interior peptide bonds, and the exopeptidases cleave the terminal amino acids.
Peptidases are secreted in an inactive form, to prevent auto-digestion. Endopeptidases cleave the polypeptides at the interior peptide bonds, and the exopeptidases cleave the terminal amino acids. Fats are digested by lipases that hydrolyze the glycerol fatty acid bonds.
Key Terms. peptidase: Any enzyme that catalyzes the hydrolysis of peptides into amino acids; a protease. amylase: Any of a class of digestive enzymes that are present in saliva and that break down complex carbohydrates, such as starch, into simple sugars, such as glucose. hydrolysis: The degradation of certain biopolymers (proteins, ...
Catabolism: A simplified outline of the catabolism of proteins, carbohydrates, and fats. Carbohydrates are taken in mainly in the form of plant carbohydrate (amylose) and animal carbohydrate (glycogen) together with some sugars, mainly disaccharides. About 80% of the western diet is in the form of amylose. Amylose is not highly branched and ...
true or false: Chylomicrons are clusters of triglycerides coated with proteins. true. true or false: Amylase, a carbohydrate-digesting enzyme, is contained within the saliva in the mouth and in the digestive juices found in the small intestine. true. true or false: Bacteria in the large intestine release vitamin K.
true or false: Amylase, a carbohydrate-digesting enzyme, is contained within the saliva in the mouth and in the digestive juices found in the small intestine. true. true or false: Bacteria in the large intestine release vitamin K. true.
The presence of chyme in the duodenum stimulates the gallbladder and the pancreas to release bile and pancreatic juice. Mechanical digestion in the stomach mixes and churns the bolus until it becomes a liquid called chyme. The gallbladder secretes bile, which emulsifies the fat, breaking it into smaller particles.
This accessory organ is called the pancreas . 2. Chyme passes through the ileocecal valve, a sphincter that connects the ileum with the ascending colon. 3.
occurs in the small intestine with the process known as segmentation. occurs through the process known as peristalsis. occurs when enzymes break apart large molecules into smaller molecules. begins in the mouth with the process known as mastication.
Bile is released from the gallbladder to emulsify fat. Stomach acid denatures fat. Bacteria in the large intestine partially break fat down to fatty acids, gas, and water. Bile is released from the gallbladder to emulsify fat.
Proteins are chemically broken down into smaller units in the stomach, but must be further broken down in the small intestine before absorption. Bacteria in the large intestines partially break protein down to amino acids, gas, and water. No chemical changes occur until protein reaches the small intestine.
This accessory organ is called the pancreas. 2.
The secretions that make up saliva are produced in the glands located underneath and behind the tongue and contain the enzyme amylase to chemically digest carbohydrate. 8. Without the cartilage at the back of the tongue called the epiglottis, food would enter the trachea during swallowing. 9.