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WorksheetsAmino acids and Proteins
Total questions: 15
Worksheet time: 15mins
This property of amino acids refers to their ability to act as an acid or a base.
zwitterionic
chirality
UV absorptive
amphoteric
Are these statements about amino acids true or false?
In the solid state amino acids exists as zwitterions
true
false
Are these statements about amino acids true or false?
Peptide links can undergo hydrolysis by reflux with hydrochloric acid
true
false
What's the correct definition of these keywords?
zwitterions
Amino acid molecules with a negative charge on the amine group in the form of COO- and a positive charge on the carboxylic acid group in the form of NH3+
Amino acid molecules with a positive charge on the amine group in the
form of NH3+ and a negative charge on the carboxylic acid group in the
form of COO-
Amino acid molecules with a negative charge on the amine group in the form of NH3- and a positive charge on the carboxylic acid group in the form of COO+
Which of these structures is a zwitterion?
The structure below is the amino acid valine. What is its structure when in a solution of high pH?
The stucture below is the amino acid glycine. What is its structure when two glycine molecules form a peptide bond?
Why are many enzymes soluble in water?
They contain large numbers of hydrogen bonds
They contain many amino acids with hydrophilic side chains
they contain an active site
Which one is an acidic amino acid?
Which of the following has the highest boiling point?
CH3CH2COOH
CH3CH2CH2NH2
NH2CH2COOH
NH2CH2COCl
Glycine* 2-aminoethanoic acid) is an optically inactive amino acid. Which of the following compounds is formed NOT because of the acid-base property of glycine?
H2NCH2COONa
CH3OOCCH2NH2
HOOCCH2NH3Cl
HOOCCH2NHOOCCH3
