Podcast
Questions and Answers
Which group gives unique characteristics bounded to the α-carbon chain in amino acids?
Which group gives unique characteristics bounded to the α-carbon chain in amino acids?
- Side group R (correct)
- Primary amino group
- Imino group
- Carboxylic acid group
At physiological pH, what charge does the carboxyl group of an amino acid have?
At physiological pH, what charge does the carboxyl group of an amino acid have?
- Negatively charged (correct)
- Positively charged
- Neutral
- Variable charge
What is the isoelectric point of a zwitterionic structure?
What is the isoelectric point of a zwitterionic structure?
- Variable
- Neutral (correct)
- Acidic
- Basic
What is the approximate molecular weight of amino acids?
What is the approximate molecular weight of amino acids?
Which amino acid does NOT have a primary amino group?
Which amino acid does NOT have a primary amino group?
In which environment do amino acids dissociate protons to form carboxyl anions?
In which environment do amino acids dissociate protons to form carboxyl anions?
Which type of amino acid contains more atoms of nitrogen?
Which type of amino acid contains more atoms of nitrogen?
What is the term used for the free amino group at the beginning of a polypeptide chain?
What is the term used for the free amino group at the beginning of a polypeptide chain?
Which amino acid contains a sulfhydryl group that can be oxidized to form a dimer called Cystine?
Which amino acid contains a sulfhydryl group that can be oxidized to form a dimer called Cystine?
In proteins, almost all carboxyl and amino groups are combined in which type of linkage?
In proteins, almost all carboxyl and amino groups are combined in which type of linkage?
Which amino acid classification includes those with R groups containing polar hydrophilic groups?
Which amino acid classification includes those with R groups containing polar hydrophilic groups?
Which type of amino acid R group is an alkyl hydrophobic group that can't form hydrogen bonds?
Which type of amino acid R group is an alkyl hydrophobic group that can't form hydrogen bonds?
According to the new UIPAC nomenclature, what has replaced the L- & D- forms for amino acid configuration?
According to the new UIPAC nomenclature, what has replaced the L- & D- forms for amino acid configuration?
Which pair of molecules are involved in the transport function of proteins?
Which pair of molecules are involved in the transport function of proteins?
