BIOCHEMISTRY 2 TERM ACCESS
9th Edition
ISBN: 9781319402877
Author: BERG
Publisher: MAC HIGHER
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Chapter 11, Problem 22P
Interpretation Introduction
Interpretation:
The difference in the structures of glycogen and cellulose needs to be explained.
Concept introduction:
Carbohydrates are available in various forms like starch, cellulose, glycogen etc. They all are polysaccharides which contribute as an energy source in plants and animals. The human body needs sufficient intake of sugar or glucose which is an energy source of human cells. Glycogen and cellulose are the polysacchrides formed by sugar molecules called glucose. They are a good source of energy.
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Chapter 11 Solutions
BIOCHEMISTRY 2 TERM ACCESS
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- Give examples of balanced redox reactions that match the following:-Catabolic-Anabolic-Oxidative-Reductivearrow_forwardIf there are 20uM of a GLUT2 transporter on the surface of a cell, each able to move 8 per second, and 50mM glucose outside of the cell, what is the flux into the cell in mM/sec?arrow_forwardA transporter is responsible for antiporting calcium and glucose. The transporter brings glucose into the cell and sends calcium out of the cell. If blood [calcium] = 2.55mM and intracellular [calcium] = 7uM, blood [glucose] = 5.2mM, and intracellular [glucose] = 40uM, what is the free energy of transport? Assume a membrane potential of 62mV (negative inside).arrow_forward
- An ATP-coupled transporter is used to import 1 phosphate from the extracellular environment. Intracellular phosphate exists at 65mM, while it is 2mM outside.Assume a free energy change of ATP hydrolysis of -42.7 kJ/mol. What is the net free energy change of the coupled reaction? Assume a membrane potential of 70mV.arrow_forwardAnother transporter brings 3 chloride ions into the cell. Outside, chloride has a concentration of 107mM, and 4mM inside the cell. Assuming a membrane potential of 62mV (negative inside), what is the free energy of transport of these ions?arrow_forwardFor the Oxaloacetate -> Malate reaction, assume the normal ratio of NAD/NADH, what is the maximum ratio of Malate/Oxaloacetate that will allow reaction progress?arrow_forward
- A particular particle is trying to cross a membrane by simple diffusion from a high concentration of 20mM to a low concentration of 20uM. If a membrane is 15uM in width, and the diffusion coefficient of the particle is 5 uM/sec, what is the influx in uM/sec?arrow_forwardMechanisms: 1. Give a full arrow-pushing mechanism for the hydrolysis of the gamma phosphate of ATP by an ATPase. 2. Give a full arrow pushing mechanism of the spontaneous redox reaction between NAD+/NADH and oxaloacetate/malate.arrow_forwardDefine the difference between primary and secondary active transport. Is one preferable to another?arrow_forward
- Which B vitamin is responsible for generating the following:- FAD/FMN-NAD/NADH/NADP/NADPH-Coenzyme Aarrow_forwardWhat is the free energy change of an NADH mediated reduction of acetaldehyde to ethanol if blood ethanol is 0.2% by volume, and [Acetaldehyde] = 9uM. Assume the ratio of NAD/NADH is the same as discussed in class.arrow_forwardWhat is the role of each redox cofactor in the cell? Be specific about subcellular localization, etcarrow_forward
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