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Food Nutrition Lectures Chapter 3
cards from lecture VI
24
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Undergraduate 3
01/26/2010

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Term
requirement for cells; their hierarchy of organization
Definition
energy; cell->tissue->organ->system
Term
Steps of Fight or Flight (5);
Never Eat Moldy Green Fruit
Definition
1: Neurotransmitters released; 2: epinephrine/norepinephrine released; 3: metabolism increase; 4: glucose is released from glycogen in liver; 5: Fat is released
Term
The two major bodily fluids
Definition
plasma and lymph
Term
5 Steps of digestion
Definition
mastication in mouth; travel down esophogus; GISK in stomach: grind, intrinsic B12 absorption, store food, kill bacteria; small intestine; large intestine (absorption in both)
Term
the purposes of the plasma and lymph
Definition
supply tissues with O2, glucose, and other nutrients; carry away wastes
Term
The 1 role of the small, and the 2 roles of the large intestine
Definition
digest & absorb; complete digestion, absorb water
Term
composition of the small intestine
Definition
duodenum, jejunum, and ileum
Term
Hormone
Definition
signal molecule, uses secondary messenger in target cells
Term
composition of the large intestine
Definition
ascending colon, transverse ", descending ", & sigmoid "
Term
three optional organs
Definition
appendix: lymph cell storage, pancreas: digestive enzymes, gal bladder: bile
Term
5 general functions of the GI tract
Definition
Digestion, absorption, propulsion, excretion, and secretion
Term
Digestion
Definition
breaking down of macromolecules into useful units; mechanical and chemical
Term
Peristalsis
Definition
the forcing of food down the esophagus
Term
Sphincter
Definition
muscular ring that closes as food passes to keep the food from regurgetating
Term
Digestion's two limits
Definition
sleep and exercise
Term
Saliva's enzymes digest these two things specifically
Definition
amylase: starch
lipase: fat
Term
Composition of gastric juice
Definition
enzymes, water, and HCl
Term
Composition of gastric juice
Definition
enzymes, water, and HCl
Term
main digestive target of gastric juice
Definition
protein
Term
Destination of pancreatic juice
Definition
stomach
Term
Intestinal enzymes (2 points)
Definition
break down carbs, protein, and fat in neutral pH
Term
Bile (3 points)
Definition
made by liver, stored in gal bladder, used to emulsify fat
Term
Products of digestion
Definition
Carbs: monosaccharides
Fat: fatty acids and glycerol
Protein: amino acids
Term
Where a nutrient can go after crossing a villi, and what decides its destination
Definition
bloodstream or lymphatic system, depending on solubility (water & fat respectively)
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