exam12011-key - Payne BSCI330 Exam#1 Print Your Name Your...

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Payne,  BSCI330 Exam #1 2/16/11 Print Your Name: Your Laboratory Section:   DAY     TIME Directions : 1. Print Your Name and Section on every page of this exam  NOW . 2. Use a  PEN  to complete this exam or you will not be eligible for a regrade. 3. Check to see that you have  3 sheets . If you don t, raise your hand. 4. You  must  confine your answers to the spaces provided.  5.  Read  the questions! - Be as specific and as concise as you can. Use the  minimal  number of words necesnsary to completely answer the question. Use diagrams and  graphs if needed, but remember to label them! 6. You must hand in your exam by 9:50 AM. Good Luck. Scoring : Possible Pts. PAGE 2 /  21 PAGE 3 /  24 PAGE 4 /  25 PAGE 5 /  12 PAGE 6 /  18 TOTAL     /  100 I pledge on my honor that I have not given or received any unauthorized assistance on this examination Signed 1
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Name ______________________ Lab Section day ______________ time_____________ 1) Which THREE statements below are true of all cells? ( CIRCLE THE SQUARES TO THE LEFT OF THE TRUE STATEMENTS; 6pts) All cells have mitochondria Cells are the vehicle for the hereditary information that defines a species TRUE All cells derive their energy from either light or organic molecules All cells store their hereditary information as linear DNA code TRUE All cells transcribe DNA into RNA in order to synthesize protein TRUE 2) Eukaryotes are said to have “hybrid” genomes. What are their genomes a hybrid of and how did the hybrid genome come to be? (6pts) Hybrids of eukaryote and prokaryote genomes. Early eukaryotes engulfed other cells including prokaryotes, resulting in symbiotic relationships. Some prokaryote symbionts evolved into mitochondria, chloroplasts, so that eukaryotes have hybrid genomes 3) Why cannot light microscopy be used to determine protein structure? (3pts) Note enough resolution 4) What property of a specimen (e.g. absorption of light etc.) does phase contrast microscopy detect (2pts)? Refractive index
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This note was uploaded on 02/27/2012 for the course BSCI 330 taught by Professor Payne during the Spring '08 term at Maryland.

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exam12011-key - Payne BSCI330 Exam#1 Print Your Name Your...

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