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24C
Absorptive State
| Question | Answer |
|---|---|
| also called fed state, lasts 4 hours after eating, when absorption of nutrients is occurring | Absorptive State |
| Anabolism exceeds | catabolism |
| excess nutrients are stored as ____if not used | fats |
| -Glucose is a major cellular energy fuel -Can be converted in liver to glycogen or fat | Carbohydrates |
| Glycogen remains in liver, but fat joins protein to form ______ released to blood for storage by ______. | very low density lipoproteins, adipose tissue |
| ______ glucose enters cell; excess stored as glycogen in muscles or fat in adipose cells | Bloodborne |
| Chylomicrons from lymph are hydrolyzed to fatty acids and glycerol before passing through | capillary wall |
| Enzyme that catalyzes hydrolysis of lipids enzyme abundant in muscle and fat tissues | lipoprotein lipase |
| used in adipose tissue, liver, skeletal and cardiac muscle as primary energy source | Triglycerides |
| most glycerol and fatty acidds are converted back to _______ for storage | triglycerides |
| some absorbed amino acids are deaminated in liver to ______ used in citric acid cycle | keto acids |
| excess _____ can be stored as fat in liver | amino acids |
| most amino acids are taken up by cells and used for | protein synthesis |
| amino acids -->proteins Glucose-->glycogen Glycerol and fatty acids--> Triglycerides | anabolism and energy storage |
| Glucose-> CO2 + H2O + ATP | Glucose(dietary) |
| amino acids-->keto acids--> Triglycerides and CO2+H2O=ATP | liver metabolism |
| absorptive state is controlled primarily by | insulin |
| Insulin secretion by beta cells of pancreas is stimulated by | Elaveted blood levels of glucose and amino acids, Intestinal GIP and parasympathetic stimulation |
| When insulin binds to membrane receptors, it facilitates diffision of glucose into muscle and adipose cells | facilitates diffusion |
| Brain and liver take up glucose without | insulin |
| Insulin is a hypoglycemic hormone that enchances | -Glucose oxidation for energy -glycogen and triglyceride formation -active transport of amino acids into tissue cells -protein synthesis -inhibits glucose release from liver and gluconeogenesis |
Created by:
edith1234
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