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Chapter 15 Food and Digestion
Food and Digestion!
Terms in this set (30)
the substances in food that provide raw material and energy that your body needs to carry out all of its essential processes.
the amount of energy needed to raise the temperature of one gram of water to one degree Celsius.
The nutrients that are composed of carbon, hydrogen, and oxygen, and are a major source of energy.
The sugar that is a major source of energy for your body's cells.
energy-containing nutrients that are composed of carbon, oxygen, and hydrogen. It also forms part of the cell, supports your internal organs, and insulated your body.
Nutrients that contain nitrogen, carbon, hydrogen, and oxygen and are needed for tissue growth and repair. They play an important role in chemical reactions in cells.
Small units that are linked together to form large protein molecules.
helper molecules in chemical reactions.
Nutrients that are not made up of living things and you obtain them by eating plants.
Percent Daily Value (PDI)
shows you how the nutritional content of one serving fits into the recommended diet for a person who consumes 2,000 calories per day.
Dietary Reference Intakes (DRIs)
shows you the amount of nutrients that are needed every day.
The process by which your body breaks down food molecules.
the process by which nutrient molecules pass through the wall of your digestive system into the blood.
the fluid released when your mouth waters. It makes it easier for you to swallow.
proteins that speed up chemical reactions.
the flap of tissue that seals off your windpipes, preventing food from entering.
the tube that connects your mouth to your stomach.
thick, slippery substance produces by the body.
the involuntary waves of muscle contraction.
a j-shaped muscular pouch located in the abdomen.
part of the digestive system where most chemical digestion takes place.
largest organ in the body that produces bile.
the substance that breaks up fat particles.
organ that stores bile and then sends it to the small intestine.
triangular organ that lies between the stomach and the first part of the small intestine that plays a role in many of the bodes processes.
finger-like projections that increase the surface area and increase absorption.
the last section of the digestive system, where water is absorbed into the bloodstream and wastes are readied for elimination.
the tube where waste material is put into a solid form.
the hole where the wastes are eliminated from at the end of the rectum.
Food Guide Prymid
a tool that shows you which foods to eat and how much of each food you should eat everyday. Helps create a healthy diet.
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