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Macromolecules Enzymes Digestive Anatomy Digestive Flow Absorption
100
What is a polymer?
Many units bonded together
100
What is an enzyme?
A biological catalyst
100
What is the mouth?
The digestive organ that takes in food
100
What is mechanical digestion?
Digestion requiring work or conscious movement
100
What is active transport?
The method of transport by which proteins and carbohydrates are absorbed into the cells of the small intestine.
200
What are saturated fatty acids?
The absence of double bonds in a fatty acid chain
200
What are proteins?
The category of macromolecules to which enzymes belong.
200
What is the large intestine?
The digestive organ that absorbs water and salt
200
What is the liver, or gall bladder?
The organ that adds bile to the small intestine
200
What is the small intestine?
Responsible for the absorption of most all nutrients that flow through the digestive tract
300
What is hydrolysis?
The addition of water to break apart macromolecules
300
What is a substrate?
The molecule that enzymes act on
300
What is the stomach?
The digestive organ that adds acid, enzymes, mixes and breaks food into liquid.
300
What is chyme?
Gastric juices combined with partially digested food
300
What is simple diffusion?
The method of transport by which lipids are absorbed into the cells of the small intestine.
400
What is homeostasis?
The tendency toward equilibrium within the body
400
What is denature?
The loss of the natural state, altering function
400
What are villi?
Finger-like projections that increase the surface area of the intestinal tract.
400
What is peristalsis?
Wave like muscular contractions that moves food through the digestive tract
400
What is hydrolysis?
The reaction that breaks macromolecules into smaller subunits so they can pass from the digestive tract into the circulatory system.
500
What is the iodine test for starch?
A color change from brown to black in the presence of starch
500
What is a pH of 2?
Above or below this pH, the enzyme pepsin will denature
500
What is the small intestine?
The digestive organ responsible for the most nutrient absorption.
500
What is pepsinogen?
The inactive form of the enzyme pepsin
500
What are aspirin and alcohol?
Substances absorbed through the stomach lining




Digestion

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