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What is NOT true about the energetics of glycolysis and gluconeogenesis? O gluconeogenesis is inhibited during intense exercise O only energy releasing reactions will give a net yield of product O glycolysis has a net direct yield of two ATP's whereas gluconeogenesis uses 2 ATP's O in gluconeogenesis, glycolysis enzymes with a highly negative AG are replaced O a reaction must have a negative AG to proceed in the forward direction

What is NOT true about the energetics of glycolysis and gluconeogenesis? O gluconeogenesis is inhibited during intense exercise O only energy releasing reactions will give a net yield of product O glycolysis has a net direct yield of two ATP's whereas gluconeogenesis uses 2 ATP's O in gluconeogenesis, glycolysis enzymes with a highly negative AG are replaced O a reaction must have a negative AG to proceed in the forward direction

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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What is NOT true about the energetics of glycolysis and gluconeogenesis? O gluconeogenesis is inhibited during intense exercise O only energy releasing reactions will give a net yield of product O glycolysis has a net direct yield of two ATP's whereas gluconeogenesis uses 2 ATP's O in gluconeogenesis, glycolysis enzymes with a highly negative AG are replaced O a reaction must have a negative AG to proceed in the forward direction What is NOT true about the conversion of one six carbon hexose into two three carbon trioses in glycolysis? O Starting with glyceraldehyde 3-phosphate, each further step in glycolysis involves two identical, three carbon molecules O one glucose is converted into two identical molecules of glyceraldehyde 3-phosphate O Aldolase catalyzes a reaction in which a six carbon substrate is split into a three carbon aldehyde and a three carbon ketone O triose phosphate isomerase converts a ketone into an aldehyde O The reactions in this part of the pathway involve oxidation/reduction What is NOT true about glycogen breakdown? O Phosphorylase a cannot attack glucose units that are near to 1,6- branch points O The enzyme phosphorylase a attacks the non-reducing ends of glycogen O The enzyme phosphorylase a catalyzes the release of glucose-1-P O the product of phosphorylase a attack enters directly into glycolysis without further modification O it takes two enzymes to convert the 1,6-branches into additional linear 1,4-linked glucose units
Transcribed Image Text:What is NOT true about the energetics of glycolysis and gluconeogenesis? O gluconeogenesis is inhibited during intense exercise O only energy releasing reactions will give a net yield of product O glycolysis has a net direct yield of two ATP's whereas gluconeogenesis uses 2 ATP's O in gluconeogenesis, glycolysis enzymes with a highly negative AG are replaced O a reaction must have a negative AG to proceed in the forward direction What is NOT true about the conversion of one six carbon hexose into two three carbon trioses in glycolysis? O Starting with glyceraldehyde 3-phosphate, each further step in glycolysis involves two identical, three carbon molecules O one glucose is converted into two identical molecules of glyceraldehyde 3-phosphate O Aldolase catalyzes a reaction in which a six carbon substrate is split into a three carbon aldehyde and a three carbon ketone O triose phosphate isomerase converts a ketone into an aldehyde O The reactions in this part of the pathway involve oxidation/reduction What is NOT true about glycogen breakdown? O Phosphorylase a cannot attack glucose units that are near to 1,6- branch points O The enzyme phosphorylase a attacks the non-reducing ends of glycogen O The enzyme phosphorylase a catalyzes the release of glucose-1-P O the product of phosphorylase a attack enters directly into glycolysis without further modification O it takes two enzymes to convert the 1,6-branches into additional linear 1,4-linked glucose units
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