WorksheetsMetabolism of Nitrogen Quiz
Total questions: 15
Worksheet time: 8mins
What is the primary aim of the Urea cycle?
Synthesise glucose
Form porphyrins
Metabolise NH4+
Produce ketone bodies
Which enzyme is responsible for the conversion of excess ammonia to glutamine?
Glutaminase
Aminopeptidase
Pepsin
Trypsin
What is the main function of the urea cycle?
Produce ATP
Synthesise proteins
Metabolise amino acids
Excrete urea
What is the result of the catabolism of purines?
Formation of ketone bodies
Production of porphyrins
Conversion to uric acid
Synthesis of neurotransmitters
Which amino acid is exclusively ketogenic?
Leucine
Lysine
Tryptophan
Phenylalanine
What is the primary cause of gout?
Conversion of excess ammonia to glutamine
Deficiency of niacin
Excess uric acid in the bloodstream
Overproduction of porphyrins
What is the main function of the enzyme glutamine synthetase?
Converts ammonia to urea
Synthesises neurotransmitters
Converts excess ammonia to glutamine
Breaks down amino acids
What is the result of the catabolism of pyrimidines?
Formation of ketone bodies
Synthesis of neurotransmitters
Conversion to uric acid
Conversion to CoA derivatives
What is the primary function of the enzyme glutaminase?
Breaks down amino acids
Converts excess ammonia to glutamine
Synthesises neurotransmitters
Converts ammonia to urea
Pepsin and Trypsin digest proteins in the small intestine.
True
False
What amino acid is required for the synthesis of dopamine?
Leucine
Tyrosine
Tryptophan
Serine
Allopurinol inhibits what enzyme?
Guanine deaminase
Nucleosidase
Adeosine deaminase
Xanthine oxidase
Insulin leads to
increase in blood sugar
decrease in blood sugar
Insulin is secreted by______ due to an _______ of ___ions
Liver, influx, Ca2+
Liver, exit, Na2+
Pancreas, influx, Ca2+
Pancreas, exit, Ca2+
Which type of diabetes occurs early in life?
Type I
Type II
There is no difference
