Bioc385-Exam1-Spr15-KEY

Bioc385-Exam1-Spr15-KEY - BIOC 385 Spring 2015 Exam 1-KEY...

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BIOC 385 Spring 2015, Exam 1-­‐KEY Name_______________________________________ 1 NO NOTES, BOOKS or OTHER MATERIALS MAY BE USED Put your name on this Exam Copy and on the ScanTron sheet. Record your answers on BOTH the provided ScanTron sheet and the EXAM , in case ScanTron is destroyed in machine or lost. You must turn in your EXAM with your ScanTron to be graded; One exam and One ScanTron . The answers are graded objectively as correct or incorrect, there is no partial credit.
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BIOC 385 Spring 2015, Exam 1-­‐KEY Name_______________________________________ 2 1. (8 pts.) Biochemistry is an applied science that follows the hierarchical structure of life on Earth. Put the following hierarchical levels into the correct order starting with simplest (#1) and ending with the most complex (#7) as they relate to simple sugars. Note that two hierarchical levels are already given. 1 (simplest).___ F ______ 2.__________ _ D ______ 3.________ _ E ______ 4._______ _ C _ _____ _ 5.________ _ B _______ 6._________ _ A _ ___ _ _ 7 (complex) ___ _ G _______ A. bird B. cytoplasm C. glycolysis D. simple sugar E. carbohydrate F. oxygen G. forest The correct order from #1 à #7 is: A. G, D, A, E, B, C, F B. F, D, E, C, B, A, G C. C, D, F, G, B, A, E D. C, D, F, G, B, A, E E. F, D, E, B, C, G, A 2. ( 7 pts ) Aquaporin is a passive transport protein that selectively permits _______ to cross the plasma membrane, whereas the _______ dependent calcium transport protein is an example of an active transport process. The __________ of transport rates occurs when membrane transport proteins are operating at maximal capacity, unlike the process of _______, which is directly proportional to ________ concentration. 3. (7 pts.) DNA encodes the genetic information of cells. Based on your understanding of the Central Dogma of Life on Earth, choose the most correct underlined words below and record your answers. Genetic inheritance requires that DNA be copied by a process called replication / translation. Gene segments of RNA / DNA are functional units defined by the nucleic acid products they produce. RNA molecules that encode proteins are called ribosomal / messenger RNA and are used as templates for transcription / translation . Proteins are the workhorses of living cells and function as metabolic enzymes / cofactors, as well as signaling molecules such as receptors.
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