Biochemistry: The Molecular Basis of Life
Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 5, Problem 48TQ
Summary Introduction

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The effect of hyperventilation on the concentration of oxyhemoglobin in the bloodstream.

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Hyperventilation means an increase in therate of breathing. In this condition, the rate of inhalation of oxygenand exhalation of carbon dioxide are high. Hemoglobin is a protein that can bind with oxygen (O2) to form oxyhemoglobin (oxyHb) and with CO2 to form carbaminohemoglobin, depending upon their concentration.

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An allosteric enzyme that follows the concerted model has an allosteric coefficient (T/R) of 300 in the absence of substrate. Suppose that a mutation reversed the ratio. Select the effects this mutation will have on the relationship between the rate of the reaction (V) and substrate concentration, [S]. ㅁㅁㅁ The enzyme would likely follow Michaelis-Menten kinetics. The plot of V versus [S] would be sigmoidal. The enzyme would mostly be in the T form. The plot of V versus [S] would be hyperbolic. The enzyme would be more active.
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Biochemistry: The Molecular Basis of Life

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