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प्रश्न
Illustrate the differences between the mechanism of action of a protein and a steroid hormone.
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उत्तर
| Protein hormone | Steroid hormone |
| Protein hormones are insulin, glucagon, prolactin etc. They have to bind their receptors which are present on the plasma membrane. They form their hormone receptor complex on the membrane. They are water-soluble hormones so they can’t diffuse to the lipid layer plasma membrane and bind to a receptor on the membrane. | Steroid hormone is an androgen, estrogen etc. which don’t have their receptor on the plasma membrane they directly diffuse to their target site. They don’t produce a secondary messenger. |
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संबंधित प्रश्न
Name the following:
The hormone causing more urine formation
Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
Pituitary is popularly called the master gland
Give the special function of the following:
Somatotrophic hormone
Given below are two diagrams (one is correct, the other one is somewhat incorrect) showing the transport of a hormone from its source gland/cell to the target organ/cell.

What is the error?
Name the Following: The master gland of the body, because it controls the activity of other endocrine gland also.
Long answer question
Explain the role of the hypothalamus and pituitary as a coordinated unit in maintaining homeostasis?
Sketch and label V.S of Pituitary gland.
Describe any four hormones secreted by Adenohypophysis.
The pituitary gland is divided into four lobes.
Write the differences between the endocrine and exocrine glands.
What is the outcome of hypersecretion of GH in childhood?
Name the only hormone secreted by pars intermedia of the pituitary gland.
Name two hormones of adenohypophysis.
Which natural cytokinin is obtained from unripe maize grain?
Name the hormones secreted by adenohypophysis.
Expand the abbreviation ADH.
Write the full for of ACTH.
Name the following:
The hormone whose undersecretion causes more urine formation.
Name the following:
Six hormones secreted from anterior pituitary.
