WorksheetsAmino acids
Total questions: 15
Worksheet time: 8mins
In the isoelectric state of α-amino acids...
The amphotericity of amino acids is conditioned...
the ability to form salts when interacting with acids and alkalis
formation of salts when interacting with alkalis
formation of salts when interacting with acids
the ability to form intra-complex compounds
What product is formed as a result of decarboxylation of the amino acid glycine:
methanamine
propanamine-1
2-aminoethanol
propanol
What is the primary function of the amino acid lysine in the human body?
Energy production
Collagen synthesis
Neurotransmitter regulation
Cell membrane structure
Which of the following amino acids is considered essential for humans?
Alanine
Glutamine
Valine
Aspartic acid
What is the structural difference between an essential and non-essential amino acid?
Essential amino acids have a hydrophobic side chain.
Non-essential amino acids have a carboxyl group.
Essential amino acids cannot be synthesized by the body.
Non-essential amino acids are only found in animal proteins.
The amino acids that make up proteins are only...
α-amino acids
compounds of the d-stereochemical series
essential amino acids
γ-amino acids
What product is formed as a result of reductive amination of 2-oxo-3-methylbutanoic acid:
alanine
valine
isoleucine
LYSINE
Which of the following reagents can be used for qualitative determination of the amino acid cysteine:
lead acetate
Feling's reagent
ninhydrine reagent
nitric acid
The isoelectric point of the amino acid lysine is located in the medium whose reaction..
alkaline
neutral
strong acid
weak acid
What product is formed when an amino acid interacts with nitric acid
N2
NO
NO2
NH3
What product is formed as a result of non-oxidative deamination of aspartic acid
butenedioic acid
2-aminobutane-3-ovaya acid
pentanedioic acid
butanedioic acid
A qualitative reaction to an amino acid containing an aromatic radical is the interaction with
concentrated nitric acid
Felling reagent
lead acetate
ninhydrin
As a result of oxidative deamination of the amino acid, pyruvic acid (2-oxopropanoic acid) is obtained. Which acid was deaminated?
alanine
valine
isoleucine
leucine
Essential amino acids …
they are not synthesized in the body and must come with food
synthesized in the body
are not α-amino acids
belong to the compounds of the D-stereochemical series
