Mineralo-corticoids MCQ

Test your knowledge with important Mineralo-corticoids MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Mineralo-corticoids MCQs on Bissoy. Bissoy App

• Which enzyme converts pregnenolone to progesterone in the first step of the synthesis of mineralocorticoids?
  ক

  18-hydroxylase

  খ

  3-β-OH-steroid dehydrogenase and Δ 4,5-isomerase

  গ

  18-hydroxy steroid dehydrogenase

  ঘ

  21-hydroxylase
• Where does the final step of mineralocorticoid synthesis takes place?
  ক

  Cytoplasm

  খ

  Nucleus

  গ

  Endoplasmic reticulum

  ঘ

  Mitochondria
• Which enzyme converts 18-OH-corticosterone to aldosterone in the final step of mineralocorticoid synthesis?
  ক

  18-hydroxylase

  খ

  11-β-hydroxylase

  গ

  18-hydroxy steroid dehydrogenase

  ঘ

  21-hydroxylase
• During the synthesis of mineralocorticoids, the progesterone formed from cholesterol is converted to 11-deoxy-corticosterone (DOC) by which enzyme?
  ক

  18-hydroxylase

  খ

  11-β-hydroxylase

  গ

  17-α-hydroxylase

  ঘ

  21-hydroxylase
• Aldosterone occurs in the form of both ‘aldehyde’ and ‘hemiacetal.’
  ক

  True

  খ

  False
• Mineralocorticoids can be synthesized in Zona glomerulosa cells only.
  ক

  True

  খ

  False
• Which steroid synthesizing enzyme is absent in zona glomerulosa cells of the adrenal cortex?
  ক

  18-hydroxylase

  খ

  11-β-hydroxylase

  গ

  17-α-hydroxylase

  ঘ

  21-hydroxylase
• Which among the following hormones can almost resemble aldosterone in its activity?
  ক

  Corticosterone

  খ

  11-deoxycorticosterone (DOC)

  গ

  11-deoxycortisol

  ঘ

  Cortisol
• Which cells produce and secrete the chief mineralocorticoid hormone, aldosterone?
  ক

  Zona glomerulosa of the adrenal cortex

  খ

  Acinar cells

  গ

  Follicular cells

  ঘ

  Zona glomerulosa of the medulla