Spring%202010%20HE%20II%20form%20A-2 - Name FORM A FSHN 101...

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Name ______________________________ FORM A FSHN 101: Introduction to Food Science and Human Nutrition Hour Exam II: Food Chemistry and Composition Spring Semester: Friday, March 12, 2010 Description : This is an exam over what you have learned during the second section of the course. The results of this test will aid you in clarifying any points of difficulty and thus, help you complete the course successfully. Instructions : Please use the computer answer form provided to record your answers to the questions below. The multiple-choice questions should be answered using the first four bubbles per row (A, B, C or D). The True- False questions should be answered using the first two bubbles per row (A or B). Please use only a No. 2 pencil to record your answers and be certain to completely fill the bubble with the pencil mark. Each of the 40 questions is worth 2.5 points for a total of 100 points. A Multiple Choice 1 An individual atom (i.e. element) possesses an equal number of _________ and _________, but the number of _________ can vary, resulting in an isotope. a. protons; electrons; nucleus b. electrons; nucleus; neutrons c. neutrons; protons; electrons d. electrons; protons; neutrons 2 To satisfy the octet rule, two atoms of Potassium (element K) donate an extra electron (each) to one atom of Oxygen (element O), resulting in Potassium Oxide (K 2 O). This type of bond is called a(n): a. covalent bond b. ionic bond c. hydrogen bond d. dipole-dipole bond 3 Which of the following foods is composed of three phases of matter: a. carbonated drinking water b. still bottled water c. orange juice with pulp d. milkshake
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The chemical functional group illustrated below is called a(an) ________ and is important in ________. a. ester; aromas (i.e. flavors) and lipids b. carboxylic acid; proteins and lipids c. ketone; aromas (i.e. flavors) and carbohydrates d. amide; proteins 5 Water is composed of one oxygen atom and two hydrogen atoms joined by polar covalent bonds. Each partially positive _________ atom and each lone pair orbital on the _________ atom can participate in a _________, setting up a _________ network. a. Hydrogen; oxygen; hydrogen bond; 3-dimensional b. Oxygen; hydrogen; covalent bond; 4-dimensional c. Hydrogen; oxygen; covalent bond; 3-dimensional d. Oxygen; hydrogen; hydrogen bond; 4-dimensional 6 ________ heat is added when 1 gram of liquid water is heated from 22ºC to 100°C. In order for 1 gram of liquid water to transition into the vapor phase, ________ heat is required. a. sensible; more sensible
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Spring%202010%20HE%20II%20form%20A-2 - Name FORM A FSHN 101...

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