KROK 1 2016 – Question 160 · KROK (Medicine) · Biological Chemistry
Activation of a number of hemostatic factors occurs through their joining with calcium ions. What structural component allows for adjoining of calcium ions?
- A. Gamma-aminobutyric acid
- B. Gamma-carboxyglutamic acid
- C. Gamma-oxybutyric acid
- D. Monoamine-dicarboxylic acids
- E. Hydroxyproline
Hint
Think about which vitamin K-dependent modification of protein-bound residues lets several clotting factors bind calcium.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Biological Chemistry
- A 6-year-old child suffers from delayed growth, disrupted ossification processes, decalcification of the teeth. What can be the cause?
- Pancreas is known as a mixed gland. Endocrine functions include production of insulin by beta cells. This hormone affects metabolism of…
- Fructosuria is known to be connected with inherited deficiency of fructose 1-phosphate aldolase. What product of fructose metabolism will accumulate…
- Cholesterol content in blood serum of a 12-year-old boy is 25 mmol/l. Anamnesis states hereditary familial hypercholesterolemia caused by synthesis…
- Coenzyme A participates in numerous important metabolic reactions. It is a derivative of the following vitamin:
- When investigating human saliva it is necessary to assess its hydrolytic properties. What substance should be used as a substrate in the process?