BIO - digestive Flashcards
the chemical and mechanical receptors that control digestion are located in the
walls of the tract organs
Which system is involved in distributing the absorbed lipids to the peripheral tissue?
lymphatic
hepatic portal circulation – absorbed nutrients for metabolic processing or storage
collects
from lumen the four basic layers that make up walls of every organ in the alimentary canal
mucosa, submucosa, muscularis externa, serosa
hormone that increases output of enzyme-rich pancreatic juice and stimulates contraction of the gallbladder to release bile is
cholecystokinin
T/F: all lipoproteins have the same lipid density
true
an electrolyte is a compound that dissociates well in water; glucose is – electrolyte
glucose
saliva includes the following solutes: electrolytes, digestive enzyme, –, lysozyme and IgA
mucin
initiates protein digestion
stomach
the acid secretions in the stomach are stimulated by the presence of
protein and peptide fragments
digestive enzyme pepsinogen is secreted by
chief cells of the stomach
which nutrients yield 4 calories per gram?
glucose and proteins
bacteria of large intestine plays an essential role in synthesizing
vitamin K and some vitamin Bs
for normal hemoglobin production in RBCs , the necessary stomach secretion is
intrinsic factor
most nutrients are absorbed through the mucosa of the intestinal villi by
active transport
