Term
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Definition
Turns violet in presence of protein, pink in presence of short polypeptide chains
Used to detect breakdown of proteins
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Term
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Definition
| Enzyme produced by salivary glands |
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Term
Chemical substances in food 1. Provide energy 2. Act as building blocks to form new body components 3. Assist body processes |
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Definition
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Term
| Carbohydrates, lipids, proteins, vitamins, minerals, water |
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Definition
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Term
Proteins produced to catalyze (speed up) reactions; these proteins' shapes remain unchanged after reaction |
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Definition
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Term
acid-base balance decrease pH (more acidic) increase pH (more basic) |
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Definition
| Respiration aids in maintaining ____ because an increase in CO2 ____ pH and decrease in CO2 causes _____ in pH |
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Term
| H+ ions, NH4+ (ammonium) ions, and NaHCO3 (sodium bicarbonate) |
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Definition
| Kidney excretion helps w/ homeostasis of pH because it secretes and reabsorbs ____, ____ and ____ |
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Term
| Phenol red. Red=alkaline soln, orange=neutral, yellow=acidic |
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Definition
| A pH indicator. Turns red in _____, orange in ____, and yellow in _____ |
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Term
| starch into maltose via hydrolysis, which is the splitting of a molecule using water |
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Definition
| Salivary amylase breaks down _____ into ____ via _____, which is |
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Term
37 deg Celsius (body temperature) = best Cold temps = slow (not enough energy) High temps = nothing or not much (too high temp for enzyme) |
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Definition
| Salivary amylase works best at ____ temp, slowly at ____, and not at all at _____ |
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Term
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Definition
| Optimum pH for salivary amylase |
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Term
| Pepsin, optimum pH is 2-4 (acidic like the stomach) |
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Definition
| Digestive protease (digests proteins) found in chief cells of stomach; optimal pH is ____ |
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Term
| Trypsin; optimum pH is at 8 |
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Definition
| Enzyme released into duodenum that breaks down proteins; optimum pH is _____ |
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Term
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Definition
| ____ is used to test for presence of starch (black in presence of starch) |
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