Question Description
1) In general, catabolic redox reactions use_______________ OR_________________ as a cofactor and anabolic redox reactions use______________ OR___________________ .
2)The enzyme Pyruvate Carboxylase is said to be anaplerotic because:
It replenishes the pool of oxaloacetate needed for the citric acid cycle
Plerotikos is the Greek word for Pyruvate
It prevents the accumulation of AcCoA in the cell
It carboxylates pyruvate without consuming ATP
It removes CO2 from the cell
3) The overall reaction of Glycolysis (Glucose -> 2 Pyruvate) results in the NET production per glucose molecule of:
2 molecules of NADH and 2 molecules of ATP
2 kjoules of ATP and 2 kjoules of NADH
4 molecules of ATP and 2 molecules of NADH
4 molecules of ATP
2 molecules of ATP and 2 molecules of CO2
4) Which of the following is an intermediate in Glycolysis, Gluconeogenesis and the Pentose pathway:
Oxaloacetate (OAA)
2,3 Bisphosphoglycerate
Glyceraldehyde-3-Phosphate (GAP)
Dihydroxyacetone Phosphate (DHAP)
Sedoheptulose-7-Phosophate
5) In the step of the aldolase mechanism shown below (Fig 15-5, p 486 of Voet & Voet text; step #4), as the reaction proceeds from the Enamine intermediate (lower diagram) to the Enzyme product bound as a Schiff base (upper diagram), the carboxylic acid is acting as: the fig is attached
|
A hydrogen acceptor |
|
An Acid |
|
|
A Base |
|
An electron acceptor |
An innocent bystander
1) In general, catabolic redox reactions use_______________ OR_________________ as a cofactor and anabolic redox reactions use______________ OR___________________ .2)The enzyme Pyruvate Carboxylase is said to be anaplerotic because:It replenishes the pool of oxaloacetate needed for the citric acid cyclePlerotikos is the Greek word for PyruvateIt prevents the accumulation of AcCoA in the cellIt carboxylates pyruvate without consuming ATPIt removes CO2 from the cell3) The overall reaction of Glycolysis (Glucose -> 2 Pyruvate) results in the NET production per glucose molecule of:2 molecules of NADH and 2 molecules of ATP2 kjoules of ATP and 2 kjoules of NADH4 molecules of ATP and 2 molecules of NADH4 molecules of ATP2 molecules of ATP and 2 molecules of CO24) Which of the following is an intermediate in Glycolysis, Gluconeogenesis and the Pentose pathway:Oxaloacetate (OAA)2,3 BisphosphoglycerateGlyceraldehyde-3-Phosphate (GAP)Dihydroxyacetone Phosphate (DHAP)Sedoheptulose-7-Phosophate5) In the step of the aldolase mechanism shown below (Fig 15-5, p 486 of Voet & Voet text; step #4), as the reaction proceeds from the Enamine intermediate (lower diagram) to the Enzyme product bound as a Schiff base (upper diagram), the carboxylic acid is acting as: the fig is attached A hydrogen acceptor An Acid A Base An electron acceptorAn innocent bystander
