MCB102-SPRING2008-EXAM-KEY_v3

MCB102-SPRING2008-EXAM-KEY_v3 - MCB 102 SPRING 2008...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MCB 102 – SPRING 2008 – METABOLISM FINAL EXAM NAME:___________________________________ KEY UNIVERSITY OF CALIFORNIA, BERKELEY FINAL EXAM – MCB 102 – METABOLISM – HAAS PAVIL – MAY 17, 2008 INSTRUCTOR: BRYAN KRANTZ THE TIME LIMIT FOR THIS EXAMINATION IS 2 HOURS AND 50 MINUTES SIGNATURE: SIGN your name in indelible ink on the line above. YOUR NAME: PRINT your name in indelible ink on the line above and on the top right hand corner of each page. WRITE all of your answers as LEGIBLY as possible. You may want to use pencil on certain sections; however, please INK OVER your final responses. CONSICE and STRAIGHTFORWARD short answers are best. GOOD LUCK! CIRCLE THE NAME OF YOUR GSI: Mary Couvillion Jack Dunkle Jeung Hyoun Kim Shirali Pandya Andrea Pezda Hiroki Satooka Lane Weaver Rachel Zunder SCORING: Eleven questions total to100 possible points. The breakdown is given below. QUESTION POINTS (POSS.) 1. (14) 2. (7) 3. (7) 4. (5) 5. (8) 6. (5) 7. (5) 8. (7) 9. (7) 10. (5) 11. (10) 12. (8) 13. (12) TOTAL (100)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
MCB 102 – SPRING 2008 – METABOLISM FINAL EXAM NAME:___________________________________ KEY QUESTION 1: TRUE/FALSE (14 pts.) Circle the correct response. If the answer is false, then provide the corrected statement, using the smallest possible change in the wording of the phrase given (1 pt. ea.) (i) Aldolase catalyzes an irreversible “splitting” of the hexose, fructose 1,6-bisphosphate, to form two triose sugars. [“False” are worth 0.5 pt. if correct; other 0.5 pt. received for corrected statement.] TRUE FALSE False, Aldolase catalyzes a reversible “splitting” of the hexose, fructose 1,6-bisphosphate, [and thus the “joining” of the two triose sugars can also be catalyzed.] The bracketed part is optional. (ii) Glycogen contains both sugars and amino acids. TRUE FALSE True. (iii) Debranching enzyme catalyzes a transfer reaction, moving an α(1 6) linkage to the reducing end of the chain. TRUE FALSE False, debranching enzyme catalyzes a transfer reaction, moving an α(1 6) linkage to the non- reducing end of the chain. (iv) A positive ΔGº’ implies the products are favored over reactants under standard conditions. TRUE FALSE False, a negative ΔGº’ implies the products are favored over reactants under standard conditions. [also could keep “positive” and change to “reactants favored over products”.] (v) A positive Δ E º’ implies the products are favored over reactants under standard conditions. TRUE FALSE True. (vi) 6-Phosphogluconate is a more reduced form of glucose 6-phosphate. TRUE FALSE False, 6-Phosphogluconate is a more oxidized form of glucose 6-phosphate. (vii) The pyruvate kinase catalyzed step is a reversible reaction in glycolysis, allowing gluconeogenesis to procede via the same enzyme. TRUE
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/08/2009 for the course MCB 102 taught by Professor Staff during the Spring '08 term at Berkeley.

Page1 / 16

MCB102-SPRING2008-EXAM-KEY_v3 - MCB 102 SPRING 2008...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online