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all food that a person eats goes through four steps. _____,______,_____,and ______
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________ is the act of eating, or putting food in the mouth
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digestive system

QuestionAnswer
all food that a person eats goes through four steps. _____,______,_____,and ______ ingestion, digestion, absorption, and elimination
________ is the act of eating, or putting food in the mouth ingestion
________ is the mechanical and chemical break down of food into small particles and molecules that your body can absorb and use. digestion
_______ occurs when the cells of the digestive system take in small molecules of digested food absorption
________ is the removal of undigested food and other wastes from the body. elimination
in _______________ food is physically broken into smaller pieces mechanical digestion
in _______________ chemical reactions break down smaller pieces of food into small molecules chemical digestion
___________ are proteins that help break down large molecules into smaller molecules enzymes
enzymes also speed up the rate of _________________ . but enzymes don't change the reaction chemical reaction
the digestive system produces enzymes that are specialized to help break down each type of food __________ molecules
the digestive system is made of two parts: the _________ and the other organs that help the body break down and absorb food digestive tract
mechanical digestion of food begins in the __________ mouth
________ contains an enzyme that helps break down carbohydrates saliva
the ________ is a muscular tube that connects the mouth to the stomach esophagus
food moves through the esophagus and the rest of the digestive tract by waves of muscle contractions, called ______________ peristalsis
the __________ is a large, hallow organ that stores food and aids in chemical digestion stomach
the stomach contains an __________ fluid called gastric juice. as food mixes with gastric juice in the stomach, it forms a thin, watery liquid called ________ 1. acidic 2. chyme
gastric juice contains ______, an enzyme that helps break down protein pepsin
chemical digestion of proteins, carbohydrates, nucleic acids, and fats takes place in the first part of the small intestine called the ________ duodenum
the folds of the small intestine are covered with finger like pro- jections called _________ villi
__________ move from the small intestine into the blood through small blood vessels in the villi nutrients
the pancreas, ________ and gall bladder produce substances that enter the small intestine and help with chemical digestion liver
as food travels through the large intestine, __________ is absorbed. water
materials that pass through the large are the __________ products of digestion waste
_____________in the intestines digest food. they also import _________ and amino acids 1. bacteria 2. vitamins
nutrients from the digestive system are necessary for other body systems to maintain ______________ homeostasis
blood in the circulatory system carries nutrients from digestion to all other body systems, providing these other systems with materials that contain _________ energy
why are bacteria in the intestines essential for proper digestion? bacteria in the intestines digest food and produce important vitamins and amino acids.
Created by: akoen2
 

 



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