Circadian rhythm is controlled

  1. Mean circulating filling pressure is?
    a. difference between central venous pressure and central arterial pressure
    b. mean atrial pressure
    c. arterialpressure taken just at the point when heart stops beating
    d. difference between systemic and pulmonary arterial pressure

  2. Which is true about presynaptic inhibition?
    a. occours due to hyperpolarisation of presynaptic membrane
    b. occours due to inhibition of release of neurotransmitter from presynaptic terminal
    c. produces action potential

  3. Circadian rhythm is controlled by?
    a. suprachiasmatic nucleus
    b. median eminence
    c. paramedian nu
    d. supraoptic nuclei

  4. DNA without introns is?
    a. b DNA
    b. z DNA
    c. c DNA
    d. mitochondrial DNA

  5. All are true about glutathione except?
    a. converts hemoglobin to methemoglobin
    b. decreases free radicals
    c. helps in conjugation reaction
    d. co factor of various enzymes

  6. Ribosome has following enzymatic activity?
    a. peptidyl transferase
    b. amino acyl t rna synthetase
    c. peptidase

  7. Which enzyme is responsible for carboxylation reaction?
    a. biotin
    b. thiamine pyrophosphate

  8. Glowing of firefly is due to?
    a. ATP
    b. NADH
    c. GTP
    d. phospho creatinine

  9. In carboxylation of clotting factors by vit k which amino acid is carboxylated?
    a. aspartate
    b. glutamate
    c. histamine
    d. histidine

  10. Synthesis of a immunoglobulin in membrane bound or independent form is determined by?
    a. one turn two turn joining rule
    b. allelic exclusion
    c. class switching
    d. differential rna processing