ExtraCreditHomework9KEY - Name: KEY EID: Extra Credit...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
KEY EID: Extra Credit Homework #9 Complete the questions below and hand in to a TA by the end of class, Monday, Nov 14. 1. Consider glycolysis/gluconeogenesis. a) Which 3 steps of glycolysis are irreversible? List the schemes (not the mechanisms) for these “irreversible” enzymatic transformations, including enzyme names. Step 1, hexokinase: Glucose + ATP glucose 6-phosphate + ADP Step 3, phosphofructokinase: Fructose 6-phosphate + ATP fructose 1,6-bisphosphate + ADP Step 10, pyruvate kinase: Phosphoenolpyruvate + ADP pyruvate + ATP b) What does “irreversible” mean here? Sufficiently large - Δ G that the reaction is unidirectional. c) What gluconeogenic enzymes bypass these reactions? List the schemes (not the mechanisms) for these enzymatic reactions. Referring to the glycolytic steps of part a)… Step 1, glucose 6-phosphatase: Glucose 6-phosphate + H 2 O glucose + P i Step 3, fructose 1,6-bisophosphatase-1: Fructose 1,6-bisphosphate + H 2 O fructose 6-phosphate + P
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/06/2012 for the course BIOCHEMIST 339K taught by Professor Keating-clay during the Spring '11 term at University of Texas at Austin.

Page1 / 3

ExtraCreditHomework9KEY - Name: KEY EID: Extra Credit...

This preview shows document pages 1 - 2. Sign up to view the full document.

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