10 Questions
What is the term used to describe a protein consisting of a single polypeptide chain?
Monomeric
How is a multimeric protein defined?
Has two or more associated polypeptide chains
What is a protein described as if it has at least two identical subunits?
Oligomeric
In hemoglobin, how many subunits make up a heterotetramer?
Four
What is the structural and functional description of hemoglobin as (αβ)2?
Heterotetramer
What is the average molecular weight of an amino acid in a protein based on the frequencies and molecular weights of the 20 standard amino acids?
$128 , \text{Da}$
What unit is commonly used to measure the molecular weight of proteins and other macromolecules?
$\text{kDa}$
Which term best describes a protein with two identical units (consisting of one or more polypeptide chains)?
$\text{Protomer}$
How is the average molecular weight of an amino acid usually expressed?
$\text{Da}$
What type of protein consists of two or more associated polypeptide chains?
Molecular spring
Learn about the importance of proteins as a class of food molecules, their unique composition providing elements like nitrogen and sulfur, and their role in providing essential nutrients like phosphorus and iron.
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