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NUT TEST 1 digestio

QuestionAnswer
The actions involved in the process of digestion are muscular and Chemical
the rhythimic contractions that propel food through intestinal tract are called peristalsis
the semi fluid mass after ingested food is mixed and churned with gastric secretions is chyme
the factor most likely to stimulate digestive secretions is smelling or seeing food
the biting, chewing, and breaking up ingested food into smaller particles is called mastication
the enzyme secreted by the salivary glands for the digestion of carbohydrates is amylase
regurgitation of acidic stomach contents back into esophagus is known as gastroesophageal reflux disease
the network of nerves within GI wall that regulates muscular actions is intramural nerve plexus
rate of gastric emptying depends on Kcal density, volume of food and compostition of meal
the release of gastric secretions is stimulated by nerve & hormonal stimuli and the presence of food in the stomach
a pH of 1.8 to 3.5 in stomach is needed for the digestion of _______ by pepsin protein
the substance that acts as an emulsifier and helps absorb digested fat is bile
the lining of the stomach and intestines is protected by from self digestion by mucus
the hormone that stimulates gallbladder to contract is CCK (cholecystokinnin)
the substance that activates pepsinogen to pepsin is hydrochloric acid
stimulus for release of CholeCytoKinnin is the presence of ____ in the duodenum. fat
small finger like projections in the intestinal lumen that aid in absorption are called villi
the end products of digestion of macronutrients, fatty acids, amino acids, and _______. monosaccharides
the part of the GI tract where the greatest amount of absorption occurs is in the small intestines (duodenum)
the primary nutritional function of the large intestine is the absorption of water
the valve that controls passage of chime from small intestine into cecum is the _____ valve. ileocecal
bacteria in the colon are important because they synthesize important vitamins such as b12
gas formation in the colon is the result of ____ action on organic compounds such as fiber bacterial
the solid portion of the fecus is composed mainly of bacteria, mucus, and _______ fiber
the process of converting glucose to glycogen is called _______ glycogenesis
the process of converting glucose to fat is called lipogenesis
nutritional supplements of health promoting bacteria is referred to as probiotics
a lipoprotein is protein wrapped around triglycerides and cholesterol
the major function of glucose is to produce _______. energy
metabolic/hormonal responses are triggered to restore blood glucose to normal when blood glucose level decreased to ____ mg/dl. 70
the substance that serves for fat transport in blood stream is _____. lipoprotein
the hormone that acts to lower blood sugar levels is insulin
the hormone that breaks down liver glycogen to glucose during fasting or sleep to raise blood sugar is ________ glucogon
synthesis of protein is governed by DeoxyriboNucleic Acid or ______ in the cell nucleus DNA
the process of tissue synthesis by protein is reffered as _____ anabolism
the organ that secretes most enzymes needed for digestion in Small Intestines is _____. pancreas
Created by: casiejulie
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