153A_Exam1_W10

153A_Exam1_W10 - Chemistry and Biochemistry 153A Winter...

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Chemistry and Biochemistry 153A Winter 2010 Exam 1 Instructions: s You will have 1 hour 45 minutes to complete the exam. s You may use a pencil (recommended) or blue or black ink pen to write your answers. Other color inks will not be graded. s Only answers on the answer sheet, in the indicated space, will be graded; writing anywhere else will be ignored. Be sure to write your name on the answer sheet. s Do not write in the score boxes on your answer sheet; you will be docked points if you do. s For answers with a word or sentence limit, words beyond this limit will not be read or graded. s For short- or multi-answer questions, including irrelevant or wrong information or selections in your answer will cause you to lose points. s Write legibly. If the grader cannot read your answer, you won’t get credit. s Items you may have on your desk: - non-programmable scientific calculator, without its case or cover - writing utensil(s) - student ID ALL other items must be placed into a bag, which must be zipped up or closed and pushed completely under your chair. s No hats, hoods or earphones are allowed. s If you continue to write after ‘time’ is called, your exam will be taken and docked 10 points. s Questions are printed on both sides, as is the answer sheet. Be sure you’ve answered all of the questions!
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Chem 153A, Winter 2010 Exam 1 Page 2 of 5 1. (3) Roughly how many proteins can fit inside a human cell? a. 1,000 b. 100,000 c. 1 million (10 6 ) d. 1 billion (10 9 ) e. A googol (10 100 ) 2. (2) Given that the boiling point of water is 100 ° C and of methanol is 65 ° C: True or false? Water has a higher boiling point than methanol because its hydrogen bonds are stronger. 3.
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153A_Exam1_W10 - Chemistry and Biochemistry 153A Winter...

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