BCA/PLS/PPA 607, Spring 2000 - Exam Questions, G. Wagner, 4/4/00


1)       (30 points of 100)  The pentose phosphate pathway provides what main biochemicals important fro both plants and animals?  What are these biochemicals ultimately used for?  This pathway leads to what biochemicals only found in plants?  What are these biochemicals used for?


2)       (30 points of 100)  In the required reading entitled "The Green Revolution Strikes Gold", a strategy is described for minimizing the potential for metabolic disruption throughout the plant when a transgene for an enzyme utilizing a central metabolic precursor is introduced into a plant.  What was this strategy (also discussed/emphasized in class)?


3)       (40 points, 2.5 each)  Make the best match (use each letter only once).  Place a letter next to the appropriate number.



____1)  Serves as a shuttle for reducing equivalents in the glyoxysome and plant mitochondrion.


____2) Product of many biosynthetic reactions


____3) A by-pass of PFK that is unique to plants


____4) Erythrose-4-phosphate


____5) Entropy low


____6) Principal fuel for oxidative phosphorylation


____7) Amino Acids to Sugars


____8) A main product of pentose phosphate shunt


____9) In a regulatory cycle with fructose-6-PO4-2-kinase


____10) F-6-PO4 to F-1,6-bisphosphate


____11) Co-transported with triose phosphate by chloroplast envelope transporter


____12)  Main export product of chloroplast


____13)  Unique to oxidative phosphorylation of higher plants, fungi, some yeasts, and some protists


____14)   TAG to sugars (plants)


____15) Main product of respiration in the exposed, developed spadix of the Voodoo Lily


____16) G-6-PO4 to G-1-PO4 to ADP-G


a)       Malate

b)       Gluconeogenesis

c)       NADPH

d)       Glyoxylate metabolism

e)       Heat

f)        Hexokinase by-pass (plants)

g)       Triose phosphate

h)       Free energy high

i)         From pentose phosphate to the shikimate pathway

j)         Phosphofructokinase

k)       Alternate oxidase

l)         PPi-dependent F-6-PO4 kinase

m)      Pi

n)       F-2,6-bisphosphatase

o)       NADH

p)       NAD (oxidized)