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Body Structures & Functions Updated

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter3: Cells

Section: Chapter Questions

Problem 5FITB

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Question

5

Draw a picture that represents your
understanding of why hemoglobin is
considered an allosteric protein.

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describe hemoglobin is a protein composed of four polypeptide chains
A hemoglobin molecule is made up of four polypeptide chains, two alpha chains of 141 amino acid residues each and two beta chains of 146 amino acid residues each. In the complete molecule, four subunits are closely joined, as in a three-dimensional jigsaw puzzle, to form a tetramer. Hemoglobin is showing level of structure O primary secondary tertiary quarternary O pentameric
The subunits of hemoglobin and myoglobin share structural similarities. Some residues are hydrophilic in hemoglobin but are hydrophilic in myoglobin. Give an explanation as to why this may be the case.
How can a protein’s potential function be determined from a protein’s primary structure? I assumed this was not possible, I thought its function was determined from its 3-dimensional structure only. Thank you for explaining this.
Allosteric protein refers to
In sickle cell anemia, hemoglobin forms long fibers as a result of Burying of non-polar amino acids Electrostatic interaction between glutamate and non polar amino acids Exposing polar amino acids Burying polar amino acids
"Loops of polypeptide that protrude from the surface of a protein often form the binding sites for other molecules" is true or false.
Dr. Jill, a competitive researcher, aims to win a University Research Grant. She wanted to investigate the role of hemoglobin in oxygen transport. To know more about the protein, she decided to use the Protein Data Bank (PDB) deposited information of 3HRW, a hemoglobin from mouse (Mus musculus). Support Dr. Jill in the exciting part of her research by answering the following questions How many amino acid residues comprise the protein? ______________ The hemoglobin from Mus musculus is classified under what group of enzymes? ______________ What experimental method was used to determine the structure? ______________ Under Domain Annotation by SCOP, how many chains comprise this enzyme? ______________ What is the superfamily of proteins in which hemoglobin is categorized?______________
Why would it be impossible to live if proteins were not to exist in the body?
When the voltage gated potassium channel moves from an open to a closed formation the 5th alpha helix shifts with relationship to the 6th alpha helix, pulling it out of the central pore. This change is an alteration to th [ Select ) Primary Secondary Teritary Quaternary structure of the protein.
Proteins are damaged for a number of reasons.
The interactions between the 2 a and 2 b subunits of hemoglobin represent what type of protein structure?

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