BMSC230 Midterm Exam with Complete Solutions
How do we determine a low energy compound? What are some examples of both high and
low? Correct Ans-Low energy compounds (glucose, glycerol-3) are below -25 ΔG°' and high
energy compounds are above (1,3 BPG, PEP, Creatine phosphate)
Electron transfer equation Correct Ans-ΔGo' = -nF(Eo'net)
n= # of electrons
F= Faraday's #
Eo'net= Net reduction potential
What enzymes convert lactose, sucrose and maltose to glucose? Correct Ans--Lactase
(Beta-galactosidase)
-Sucrase (invertase)
-Maltase
Where would you find GLUT2 and GLUT4? What do they do? Correct Ans-GLUT2 is in the
liver and pancreas and the play a role inthe regulation of insulin
GLUT 4 is in the muscle and increases with endurance training
First reaction of the glycolysis pathway Correct Ans-Glucose + ATP
Hexokinase (enzyme)
Glucose-6-phosphate + ADP + H
, BMSC230 Midterm Exam with Complete Solutions
Second Reaction in glycolysis Correct Ans-G6P
Phosphoglucose isomerase
Fructose-6-phosphate
Third reaction of the glycolysis pathway Correct Ans-Fructose-6-Phosphate +ATP
Phosphofructokinase (enzyme)
Frucotse-1,6-bisphosphate + ADP + H
IRREVERSIBLE
ends the first half of glycolysis (energy requiring)
Fourth reaction in glycolysis Correct Ans-Fructose-1,6-bisphosphate
Aldolase (enzyme)
DHAP and GAP
Begins the second half of glycolysis
Fifth reaction in glycolysis Correct Ans-GAP (glyceraldehyde-3-phosphate) +NAD + Pi
GAP dehydrogenase
1,3-BPG + NADH + H
FIRST REACTION TO PRODUCE ENERGY IN THE FORM OF NADH
How do we determine a low energy compound? What are some examples of both high and
low? Correct Ans-Low energy compounds (glucose, glycerol-3) are below -25 ΔG°' and high
energy compounds are above (1,3 BPG, PEP, Creatine phosphate)
Electron transfer equation Correct Ans-ΔGo' = -nF(Eo'net)
n= # of electrons
F= Faraday's #
Eo'net= Net reduction potential
What enzymes convert lactose, sucrose and maltose to glucose? Correct Ans--Lactase
(Beta-galactosidase)
-Sucrase (invertase)
-Maltase
Where would you find GLUT2 and GLUT4? What do they do? Correct Ans-GLUT2 is in the
liver and pancreas and the play a role inthe regulation of insulin
GLUT 4 is in the muscle and increases with endurance training
First reaction of the glycolysis pathway Correct Ans-Glucose + ATP
Hexokinase (enzyme)
Glucose-6-phosphate + ADP + H
, BMSC230 Midterm Exam with Complete Solutions
Second Reaction in glycolysis Correct Ans-G6P
Phosphoglucose isomerase
Fructose-6-phosphate
Third reaction of the glycolysis pathway Correct Ans-Fructose-6-Phosphate +ATP
Phosphofructokinase (enzyme)
Frucotse-1,6-bisphosphate + ADP + H
IRREVERSIBLE
ends the first half of glycolysis (energy requiring)
Fourth reaction in glycolysis Correct Ans-Fructose-1,6-bisphosphate
Aldolase (enzyme)
DHAP and GAP
Begins the second half of glycolysis
Fifth reaction in glycolysis Correct Ans-GAP (glyceraldehyde-3-phosphate) +NAD + Pi
GAP dehydrogenase
1,3-BPG + NADH + H
FIRST REACTION TO PRODUCE ENERGY IN THE FORM OF NADH
