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)