digestive system Word Scramble

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Question	Answer
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