Which of the following vitamins is associated with
synthesis of coagulation factor prothrombin?

To prevent rickets in case of chronic renal disorders, which
of the following substances should be administered?

Which of the following forms of vitamin A is used in the visual cycle:

The disease pellagra is due to a deficiency of:

Which of the following coenzyme is involved in the
formation of hydorxy-proline during collagen synthesis?

A hypochromic microcytic anaemia with increased Fe
stores in the bone marrow may be:

In haemochromatosis, the liver is infiltrated with:

Ceruloplasmin shows the activity of:

In case of Wilson’s disease,
the features include all of the following, except:

A 75-year-old woman is seen in the emergency room with a fractured arm. Physical examination revealed multiple bruises and hemorrhages, periodontitis, and painful gums. Her diet consists predominately of weak coffee, bouillon, rolls, and plain pasta. Lab results indicated mild microcytic anemia. Which of the following enzymes should be less active than normal in this patient?

One of the first chemotherapeutic agents was methotrexate, a compound that was effective in killing rapidly dividing cells like those of leukemias. This compound would be expected to elevate concentrations of which of the following compounds?

Which of the following components can be derived from tryptophan, along with its active compound?

A 52-year-old female presents with fatigue of several months’ duration. Blood
studies reveal a macrocytic anemia, reduced levels of hemoglobin, elevated
levels of homocysteine. Which of the
following is most likely deficient in this patient?

Which of the following statements describes the function of vitamin E in humans?