The nonlethal substitution for single glutamic acid in normal hemoglobin by glutamine is to be explained. Concept introduction: Amino acids are defined as organic compounds which contain amine ( − N H 2 ) and carboxyl ( − C O O H ) functional groups , along with a side chain (R group) attached to each amino acid. Hemoglobin is an oxygen transport metalloprotein, containing iron as a central metal atom. Glutamic acid and glutamine are amino acids produced in the muscles and are used in the biosynthesis of proteins. To determine: The explanation for a nonlethal substitution of glutamic acid by glutamine in hemoglobin.
The nonlethal substitution for single glutamic acid in normal hemoglobin by glutamine is to be explained. Concept introduction: Amino acids are defined as organic compounds which contain amine ( − N H 2 ) and carboxyl ( − C O O H ) functional groups , along with a side chain (R group) attached to each amino acid. Hemoglobin is an oxygen transport metalloprotein, containing iron as a central metal atom. Glutamic acid and glutamine are amino acids produced in the muscles and are used in the biosynthesis of proteins. To determine: The explanation for a nonlethal substitution of glutamic acid by glutamine in hemoglobin.
Solution Summary: The author explains the nonlethal substitution of glutamic acid by glutamine in hemoglobin.
Definition Definition Group of atoms that shape the chemical characteristics of a molecule. The behavior of a functional group is uniform in undergoing comparable chemical reactions, regardless of the other constituents of the molecule. Functional groups aid in the classification and anticipation of reactivity of organic molecules.
Chapter 22, Problem 102E
Interpretation Introduction
Interpretation: The nonlethal substitution for single glutamic acid in normal hemoglobin by glutamine is to be explained.
Concept introduction: Amino acids are defined as organic compounds which contain amine(−NH2) and carboxyl (−COOH)functional groups, along with a side chain (R group) attached to each amino acid. Hemoglobin is an oxygen transport metalloprotein, containing iron as a central metal atom. Glutamic acid and glutamine are amino acids produced in the muscles and are used in the biosynthesis of proteins.
To determine: The explanation for a nonlethal substitution of glutamic acid by glutamine in hemoglobin.
There is an instrument in Johnson 334 that measures total-reflectance x-ray fluorescence (TXRF) to do elemental analysis (i.e., determine what elements are present in a sample). A researcher is preparing a to measure calcium content in a series of well water samples by TXRF with an internal standard of vanadium (atomic symbol: V). She has prepared a series of standard solutions to ensure a linear instrument response over the expected Ca concentration range of 40-80 ppm. The concentrations of Ca and V (ppm) and the instrument response (peak area, arbitrary units) are shown below. Also included is a sample spectrum. Equation 1 describes the response factor, K, relating the analyte signal (SA) and the standard signal (SIS) to their respective concentrations (CA and CIS).
Ca, ppm
V, ppm
SCa, arb. units
SV, arb. units
20.0
10.0
14375.11
14261.02
40.0
10.0
36182.15
17997.10
60.0
10.0
39275.74
12988.01
80.0
10.0
57530.75
14268.54
100.0…
A mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C.
H₂O(g) + C₁₂O(g) = 2 HOCl(g)
K = 0.0900 at 25°C
с
Calculate the equilibrium concentrations of each gas at 25 °C.
[H₂O]=
[C₁₂O]=
[HOCI]=
M
Σ
M
What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?