3rdexam_roberts - BIOSC 0150 CRN# 10560 PINK Foundations o...

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Before filling in your name and PeopleSoft-ID, please check that the color of your scantron sheet matches the color of your test. In column J of the scantron sheet blacken the circle corresponding to the color of your exam: white = 1; blue = 2; pink = 3; yellow = 4. Proceed with the exam, choosing the best answer for each of the following questions and blackening the proper circle on the answer sheet with a Number 2 pencil. Read each question carefully before marking the best answer on your scantron sheet.Work thoughtfully. Make educated guesses if necessary. Even wild guessing throughout should net you 20% of the total points, on the average. PLACE THE ANSWER SHEET IN ITS OWN COLOR PILE when you are done Foundations of Biology - I 3rd EXAMINATION PINK Fall Term 2008 - Dr. Laurel Roberts BIOSC 0150 CRN# 10560 imprecise recombination between the immunoglobin genes. clonal anergy. clonal deletion. genetic deletions in the immunoglobin genes. changes in the variable region. a. b. c. d. e. 1 -- X Class switching occurs as a result of becomes parenchyma; becomes collenchyma becomes a sieve tube element; becomes a companion cell becomes a meristem cell; differentiates into a specialized cell type becomes a meristem cell; becomes a meristem cell becomes sclerenchyma; becomes collenchyma a. b. c. d. e. 2 -- When a meristem cell divides, one of the daughter cells ___________, while the other ________. 2-1-4-3-5. 1-2-3-4-5. 2-4-3-1-5. 4-2-1-3-5. 2-4-1-3-5. a. b. c. d. e. 3 -- Arrange the following five events in the order that explains the mass flow of materials in the phloem. 1. Water diffuses into the sieve tube members. 2. Mesophyll cells produce sugar by photosynthesis. 3. Sugar is imported into sieve tube members. 4. Sugar is transported from cell to cell in the leaf ground tissue. 5. Sugar moves down the stem. rate of a process at a certain temperature, divided by its rate at 10°C. rate of a process at a certain temperature, divided by its rate at a temperature 10°C lower. rate of a process at a certain temperature, divided by its rate at a temperature 10°C higher. temperature at which the rate of a certain process doubles. temperature at which the rate of a certain process becomes insignificant. a. b. c. d. e. 4 -- X The Q10, which describes the sensitivity of a reaction to temperature, is calculated as the They are water transport channels. They are unique to plant cells. They occur on the plasma membrane. They speed up osmosis. They do not alter the direction of water movement. a. b. c. d. e. 5 -- X Which of the following statements does not apply to aquaporins?
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Page 2 PINK increases; increases increases; decreases decreases; increases decreases; decreases stays the same; decreases a. b. c. d. e. 6 -- X As the environmental temperature in a closed, empty chamber increases (up to 25°C), the metabolic rate of an ectotherm _______ and that of an endotherm _______.
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3rdexam_roberts - BIOSC 0150 CRN# 10560 PINK Foundations o...

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