Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Krause Ch.3
The Nutrients and Their Metabolism
| Vocab. Words | Definitions |
|---|---|
| acetyl coenzyme a (acetyl CoA) | molecule produced by fatty acid oxidation |
| amino acid | an organic compound containing an amino (NH2) group and a carboxyl (COOH) group; links with other amino acids to form proteins |
| amino acid score | a method of protein evaluation in which the milligrams of the limiting essential amino acid in the test protein are divided by the milligrams of the same essential amino acid in the reference protein. |
| amylopectin | a form of starch made up of highly branched glucose polymers |
| amylose | a form of starch composed of smaller, linear molecules (10^5 to 10^6 daltons) that is less than 1% branched |
| antioxidant | a substance that can inhibit reactions of free radicals such as reactive species of oxygen; used to describe vitamins C and E, come carotenoids, ubiquinones, and bioflavonoids |
| ascorbic acid | vitamin C, a water soluble vitamin that plays essential roles in minteral metabolism and intracellular antioxidant functions; biosynthesized from glucose and most nonprimate species |
| beta-glucans (glcopyranose) | polysaccharides that occur with branching, which makes them less linear than cellulose and therefore more soluble; found in oats and barley |
| beriberi | neuropathy caused by thiamin deficiency |
| bioavailability | the availability of a mineral within the small intestine for absorption and the actual absorption ( efficiency) of the mineral; implies retention of the mineral in the body and its use in cellular or tissue functions |
| bioflaconoids | group of vitamin-like substances found in plants with antioxidant activities |
| biotin | a sulfur-containing vitamin synthesized by microorganisms in the lower gastrointestinal tract. |
| calbindins | calcium-binding proteins found in intestinal absorbing cells and other cells of the body |
| calcitrol | hormonally active form of vit-D produced by the kidney; 1,25-dihydroxycholecalciferol (1,25-[OH]2D3) |
| carnitine | a required cofactor derived from the essential amino acids methionine and lysine that fcilitates transfer of long-chain fatty acids across the mitochondrial membranes and is essential for the oxidation of fatty acids |
| carotenoids | yellow or red pigments found in carrots, sweet potatoes, leafy vegetables, milk fat, and egg yolk which can be converted into vit. A (retinol) in the body |
| ceruloplasmin | a plasma protein that trnasports copper and acts as an oxidase (enzyme) |
| cellulose | a CHO made of long, strait glucose polymers in beta-linkages that resists hydrolysis in the human digestive tract; dietary fiber |
| chiral carbon | a carbon atom with four different atoms or groups attached, can form isomers |
| chitin | a homopolymer of N-acetylglucosamine in the exoskeleton of invertebrates;sometimes included in food products as a chitosan, a fiber component; possibly has a hypercholesterolemic effect in humans |
| cholecalciferol | the form of the fat-soluble vit. D3, produced when 7-dehydrocholesterol in the skin is photolysed by UV irradiation |
| cholesterol | a setrol found in cell membranes of all animal tissues that is also necessary for production of bile and steroid hormones |
Created by:
izzyann1031
Popular Science sets