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HLTH 340 Midterm Exa
| Question | Answer |
|---|---|
| Allelochemical | secondary metabolites produced by plants, algae, bacteria, and fungi that influences the physiology or behavior of an organism of a different species. (Terpenoids, alkaloids, flavonoids) |
| Astrigent | (ie. tannins & saponins) create pungent, tingly, and drying sensation on the oral membrane & stimulation of the trigeminal nerve – this nerve also has receptors in the oral & nasal cavity, and is sensitive to chemical stimuli. |
| Pica-Behavior | A tendency or craving to eat substances other than normal food (such as clay, plaster, or ashes), occurring during childhood or pregnancy, or as a symptom of disease or nutritional deficiency. |
| What is edible? | When determining what is edible, humans rely on cultural determinants and biological cues in the process |
| Palatability | The unpalatable nature of a food may reflect the absence of positive stimuli or presence of irritating or unpleasant principles. |
| Why do humans include unpalatable food components in their diet? | In cases of limited food options or crop failure, wild foods otherwise considered marginally edible are frequently consumed Necessity Sensory variety Cultural identity Pest resistance Traditional knowledge maintenance Medicinal |
| Primary Metabolites | Carbs, lipids, proteins, nucleic acids Involved directly in growth |
| Secondary Metabolites | Alkaloids, phenolics, sterols, steroids, essential oils, lignins Produced for defense purposes |
Created by:
madisonewoods
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