Term
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Definition
- Carbohydrates
- Lipids
- Proteins
- Vitamins
- Minerals
- Water
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Term
Vitamin's Role in the Body |
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Definition
Facilitate the release of energy from carbohydrates, fats and proteins |
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Term
Mineral's Role in the Body (2 things) |
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Definition
- In structures such as bones or teeth
- Found in fluids which influence fluid balance and distribution
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Term
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Definition
Provides the environment in which nearly all of the body's activities are conducted |
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Term
Inorganic Nutrients (2 nutrients) |
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Definition
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Term
Organic Nutrients (4 nutrients) |
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Definition
- Carbohydrates
- Lipids
- Proteins
- Vitamins
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Term
Energy Yielding Nutrients (3 nutrients) |
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Definition
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Term
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Definition
Multiply the number of grams of carbohydrate, protein or fat by 4,4 or 9 and then add together
(Carbohydrate x 4) + (Protein x 4) + (Fat x 9) = Food Energy |
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Term
Key Recommendations for the Dietary Guidelines for Americans 2010 (5 chapters) |
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Definition
- Balanacing kCalories to Manage Weight
- Foods and Food Components to Reduce
- Foods and Nutrients to Increase
- Building Healthy Eating Patterns
- Helping American Make Healthy Choices
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Term
Calculating Nutrient Density |
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Definition
Divide milligrams or grams of food by kcalories
(mg)/(kcal)
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Term
What must be on the nutrition facts panel? (3 things) |
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Definition
- Serving Sizes
- Nutrient Quantities
- Daily Values
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Term
What caloric diet is used to determine Daily Values? |
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Definition
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Term
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Definition
Show certain nutrition information as a percentage of your daily value needed to meet recommendations |
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Term
What must the Daily Values provide information on? |
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Definition
Total food energy
Food energy from fat
Total fat
Saturated fat
Trans fat
Cholesterol
Sodium
Total Carbohydrate
Dietary fiber
Sugars
Protein
Vitamin A
Vitamin C
Iron
Calcium |
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Term
History of USDA's Food Recommendations Leading to MyPlate (5 previous) |
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Definition
- Food for Young Children
- Food Wheel
- Food Guide
- Food Groups
- Food Pyramid
- MyPlate
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Term
Dietary Guidelines: What year were they created, how often are they updated and what are they focused on now? |
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Definition
- 1990
- Every 5 years
- Children and obesity epidemic
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Term
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Definition
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Term
Cholesterol Recommendation |
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Definition
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Term
List segments of the digestive tract in order from the mouth to the colon (21 parts, from textbook) |
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Definition
- Mouth
- Pharynx
- Salivary Glands
- Epiglottis
- Trachea
- Esophagus
- Esophageal Sphincters
- Diaphram
- Stomach
- Pyloric Sphincter
- Liver
- Gall Bladder
- Bile Duct
- Appendix
- Small Intestine
- Ileocecal Valve
- Pancreas
- Pancreatic Duct
- Large intestine
- Rectum
- Anus
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Term
What are the pharynx, epiglottis, trachea and esophagus? |
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Definition
- Pharynx: directs food from mouth to esophagus
- Epiglottis: protects airway during swallowing
- Trachea: allows air to pass to and from lungs
- Esophagus: passes food from the mouth to the stomach
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Term
What do the diaphram, gallbladder, apendix, and pancreas have to do with digestion? |
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Definition
- Diaphram: Separates the abdomen from the thoracic cavity
- Gallbladder: Stores bile
- Appendix: Houses bacteria and lymph cells
- Pancreas: Manufactures enzymes to digest all energy yielding nutrients and releases bicarbonate to nutrilize acid chyme
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Term
Explain the mechanical processes of digestion in order of occurrence |
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Definition
Chew food
Swallow
Epiglottis closes to protect airway
Upper sphincter opens
Peristalsis moves food along
Lower sphincter closes
Stomach grinds food into chyme
Pyloric sphincter opens and closes
Segmentation in small intestine
Ileocecal valve opens
Peristalsis moves food
Travels to colon and rectum
Rectum and anal canal hold
Rectal muscles relax
Excretion
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Term
Salivary Glands Role in Digestion |
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Definition
Saliva moistens food and salivary amylase begins carhbohydrate breakdown |
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Term
Pancreas' Role in Digestion |
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Definition
Secretes enzymes through ducts in the duodenum that break down proteins, carbohydrates and fats and neautralizes stomach acid |
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Term
Liver and Gallbladder's Role in Digestion |
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Definition
Liver creates bile to be stored in the gallbladder for later secretion into the duodenum. Bile emulsifies fat |
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Term
Explain the Role of Enzymes in Digestion |
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Definition
Enzymes are proteins that facilitate the chemical break down of molecules - in digestion this is known as hydrolysis |
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Term
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Definition
Nutrients cross into intestinal cells freely, requires no energy |
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Term
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Definition
Nutrients need a specific carrier to tranport them from one side of the cell membrane to the other |
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Term
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Definition
Nutrients must move against a concentration gradient (they require energy to be absorbed) |
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Term
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Definition
Food entering the stomach stimulates cells to release gastrin and gastrin stimulates the stomach glands to secrete HCL |
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Term
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Definition
The presence of acidic chyme stimulates the cells of the duodenum to release secretin, which stimulates the pancreas to release neutralizing enzymes |
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Term
Cholecystokinin (CCK) (2 roles) |
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Definition
Fat in the intestine stimulates the release of the hormone CCK, which travels to the gallbladder and tells it to release bile for emulsification
When fat triggers it's release it slows down GI tract mobility |
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Term
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Definition
An emulsifier that prepares fat and oil for digestion; created by the liver and stored in the gallbladder |
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Term
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Definition
organ that stores bile, alerted by CCK when fat is present and bile needs to be excreted |
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Term
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Definition
semiliquid mass of partly digested food expelled by the stomach into the duodenum |
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Term
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Definition
alkaline compound secreted from the pancreas that neutralizes stomach acid |
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Term
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Definition
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Term
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Definition
slippery substance secreted by the cells of the GI lining that protects cells from exposure to digestive juices; lines stomach and GI tract |
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Term
5 Sphincters of the GI Tract |
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Definition
Upper esophageal sphincter
Lower esophageal sphincter
Pyloric sphincter
Ileocecal Valve
Inner Anal Sphincter/Outer Anal Sphincter |
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Term
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Definition
Fingerlike projections in the small intestine and the even smaller projections on their surface |
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Term
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Definition
Waves of contracting muscles |
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Term
Three Sections of the Small Intestine |
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Definition
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Term
3 Important Monosaccharides |
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Definition
- Glucose
- Fructose
- Galactose
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Term
3 Important Disaccharides and Their Components (glucose +) |
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Definition
- Maltose (glucose + glucose)
- Sucrose (glucose + fructose)
- Lactose (glucose + galactose)
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Term
3 Important Polysaccharides |
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Definition
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Term
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Definition
Help with heart disease and diabetes. Lower blood cholesterol by binding with bile in the GI tract so that the liver must use cholesterol to make more |
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Term
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Definition
Promote bowel movement and help prevent colon cancer |
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Term
Explain how carbohydrates are digested in the GI Tract |
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Definition
Salivary amylase begins to break down polysaccharides and releases maltose
Digestion stops in the stomach as salivary amylase is neutralized by stomach acid
Pancreatic amylase breaks down food in the small intestine to glucose and maltose chains
Maltase breaks maltose into 2 glucose molecules, Sucrase breaks sucrose into 1 glucose and 1 fructose and Lactase breaks lactose into 1 glucose and 1 galactos
In the large intestine only fiber remains |
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Term
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Definition
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Term
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Definition
Normally the intestinal cells produce enough of the enzyme lactase to ensure that the disaccharide lactose is digested and absorbed efficiently
When more lactose is consumed than the available lactase can handle, lactose molecules remain in the intestine undigested |
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Term
The Role of Glucose in the Body |
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Definition
Glucose is used as energy for every cell in the body, especially red blood cells, the nervous system, and the brain.
Unused Glucose is stored as glycogen in the liver. When blood sugar falls, the liver hydrolizes glycogen chains and releases glucose into the blood stream. |
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Term
What hormones regulate glucose and what are their roles? |
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Definition
Insulin - puts glucose into cells
Glucagon - brings glucose out of storage when necessary |
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Term
Find the Percentage of Fat for a Given Nutrient |
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Definition
Fat kcal/ Total kcal = (#) X 100 = percent |
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Term
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Definition
A cell forms a vesicle to surround and engulf a nutrient and the nutrient is dissolved in water inside the vesicle to be absorbed intact. |
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Term
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Definition
Lower esophageal sphincter malfunctions and allows stomach acid into the asophagus |
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Term
Ulcers (Defintion and 3 Causes) |
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Definition
A lesion of the skin or mucous membranes characterized by inflammation and damaged tissue
Caused by:
- Bacterial infection with H. pylori
- Use of certain inflammatory drugs
- Disorders that cause excessive gastric acid secretion
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Term
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Definition
Frequent loose, watery stools that indicate that contents are moving too quickly through the intestines for absorption or water has been drawn from the intestinal tract and added to food |
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Term
Oligosaccharides (definition & food sources) |
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Definition
Usually 3-10 monosaccharides linked together that's undigested portions serve as food for intestinal microflora
Food Sources: Legumes, beans, cabbage, brussel sprouts, & broccoli |
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