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Unformatted text preview: BILD1 / Winter 2006 / MIDTERM 1 NAME: ____________________________ Traver / Kiger 1 BILD 1 MIDTERM EXAM #1 PRINT YOUR NAME LEGIBLY ON EVERY PAGE!! ALL STUDENTS READ THE FOLLOWING WAIVER: By signing this waiver, I give permission for this exam to be returned to me in class. This may expose my score to other students. If I do not sign this waiver, I acknowledge that this exam will not be returned in class but rather must be picked up no earlier than Thursday, January 26 th in the office of Ria del Rosario in Room 4119 of the Natural Sciences Building. Exams not picked up by the end of Winter quarter will be discarded. ___________________________________________ _________________________ (Student Signature) (Date) QUESTION: POINTS: 1. MICHELLE ________ (14 total) 2. SRISHTI ________ (26 total) 3. KAVEH ________ (14 total) 4. MEERA ________ (13 total) 5. MORGAN ________ (15 total) 6. NIDHEE ________ (15 total) 7. GHAZAL ________ (16 total) 8. JENNIFER ________ (19 total) 9. THUY ________ (18 total) Extra Credit. THUY ________ (6 possible) TOTAL ________ (150 points possible) BILD1 / Winter 2006 / MIDTERM 1 NAME: ____________________________ Traver / Kiger 2 PROBLEM 1. The Chemistry of Life A. Name the four elements that make up 96% of living matter. (2 POINTS) B. Draw the electron shell diagram of each. Write the valence underneath each element. (4 POINTS) C. The atomic number of neon is 10. Therefore, an atom of neon (1 POINT) A) has 8 electrons in its outer shell. B) is inert. C) has an atomic mass of 10 daltons. D) only A and B are correct. E) A, B and C are correct. D. Write out each of the four bond types discussed in class in order of increasing strength. (4 POINTS) E. One liter of a solution with a pH of 6 has ______ hydrogen ions (H + ) than 1 L of a solution with a pH of 2? (1 POINT) A) 4 times more. B) 4000 times more. C) 10,000 times more. D) 4 times less. E) 4000 times less. F) 10,000 times less. F. One of the buffers that contributes to pH stability in human blood is carbonic acid (H 2 CO 3 ). Carbonic acid is a weak acid that dissociates into a bicarbonate ion (HCO 3- ) and a hydrogen ion (H + ). If the pH of the blood rises, one would expect ______ (1 POINT) A) a increase in the concentration of H 2 CO 3 and a decrease in the concentration of HCO 3- . B) the H 2 CO 3 to act as a base and increase H 2 CO 3 + concentration. C) the concentration of bicarbonate ion (HCO 3- ) to increase. D) the HCO 3- to act as a base and remove excess H + with the formation of H 2 CO 3 . G. Amino acids are acids because they always possess which functional group? (1 POINT) A) amino B) carboxyl C) aldehyde D) carbonyl E) sulfhydryl BILD1 / Winter 2006 / MIDTERM 1 NAME: ____________________________ Traver / Kiger 2 PROBLEM 1. The Chemistry of Life A. Name the four elements that make up 96% of living matter. (2 POINTS) B. Draw the electron shell diagram of each. Write the valence underneath each element. (4 POINTS) C. The atomic number of neon is 10. The atomic number of neon is 10....
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This note was uploaded on 03/31/2010 for the course BIOLOGY BILD 1 taught by Professor Traver during the Winter '10 term at UCSD.
- Winter '10