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Human Body

Nutrition, Digestive and Excretory Systems

TermDefinition
Nutrient substances in foods that provide energy and materials for cell development, growth and repair- proteins, carbohydrates, fats, vitamins, minerals and water
Protein -large molecules that contain HONC -building blocks are amino acids -your body uses proteins for replacement and repair of body cells and for growth -ex. eggs, milk, cheese, meat
Amino Acid building block of protein
Carbohydrate -COH -building blocks are sugars -provides energy for all the things you do simple carb: sugar, fruit complex carb: starch, fiber
Fat (Lipids) -COH -building blocks are fatty acids and glycerol -nutrients that provide and store energy -helps your body absorb vitamins -warmth
Vitamin water or fat soluable nutrient needed in small quantities for growth, preventing disease and regulating body function
Mineral inorganic nutrient that regulates many chemical reactions in the body ex. calcium, phosphorus
Water human body is 60% water and is required for survival
Digestion the process that breaks down food into smaller molecules
Mechanical Digestion breaking down food by chewing
Chemical Digestion breaking down food using enzymes
Enzyme a type of protein that speeds up chemical reactions in the body
Mouth mechanical and chemical digestion begin in the mouth
Esophagus tube that carries food
Epiglottis a thin flap of tissue that prevents food from going down the windpipe
Peristalsis waves of muscular contractions that move food through the digestive system
Stomach muscular bag that is the site of mechanical and chemical digestion
Chyme liquid product if digestion
Small Intestine site of chemical digestion and absorption of nutrients (food) in the bloodstream
Villi -tiny finger-like projections on the inner walls of the small intestines -used for food absorption
Large Intestine -absorbs any water left in food that has not been digested -passes unused waste from the body
Urinary System rids the blood of wastes produced by your cells
Urine wastewater that is excreted (leaves the body)
Kidneys -two bean-shaped urinary system organs -filters blood that contains wastes collected from cells
Bladder an elastic, muscular organ that holds urine until it leaves the body
Created by: cneeson on 2014-04-22



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