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fstc201 1-18-08

fstc201 1-18-08 - bacteria in such foods as sour cream...

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Food Sciences Week 1 Friday, January 18, 2008 Do the chapter challenges, answers on elearning Proteins are made up of amino acids I. Biology and Food Science a. Phototrophs i. Depend directly on solar energy, and trap it to convert carbon dioxide into complex sugar molecules via photosynthesis. b. Chemotrophs i. Obtain energy from chemical compounds obtained directly or indirectly from photographs through either respiration or fermentation 1. Respiration a. A metabolic reaction that generates energy in the presence of oxygen (“aerobic” process) i. This reaction occurs after we consume fruits, breads, etc. 2. Fermentation a. A metabolic reaction that generates energy in the absence of oxygen i. This reaction is carried out by LACTIC ACID
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Unformatted text preview: bacteria in such foods as sour cream, yogurt, and cheese II. Chemical Symbols, Formulas, Equations a. Element: simplest type of pure substance b. Compound: 2 or more elements chemically bonded c. Chemical Symbols: represent elements of the periodical table d. Formula: elements in a compound constitute a formula: i. CH 3 COOH acidic acid e. Equation: chemical “sentence” describes a chemical reaction when atoms and/or molecules approach close enough to interact via chemical bonding (includes electrons) Glucose molecular oxygen 6 CO 2 + 6 H 2 O C 6 H 12 O 6 + 6 O 2 reactants products C 6 H 12 O 6 + 6 O2 6 CO 2 + 6 H 2 O + energy C 6 H 12 O 6 2 C 3 H 6 O 3 + energy...
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