Which of the following statements about vasopressin (ADH) is incorrect?
Vasopressin is secreted by the posterior pituitary, not the anterior pituitary.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine Disorders
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Which of the following is an incorrect statement regarding vasopressin (ADH)?
ADH deficiency leads to diabetes insipidus, not diabetes mellitus.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine Disorders
Which hormone is known as an "anti-diuretic hormone"?
Vasopressin (ADH) reduces water loss by promoting reabsorption in the kidneys, thereby preventing excessive urination.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Which hormone, secreted by the posterior pituitary, plays a role in kidney water retention?
Vasopressin (ADH) promotes water reabsorption in the kidneys, reducing water loss in urine.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine System and Hypothalamus Pituitary Axis
Which hormone is primarily responsible for regulating water balance in the body?
ADH (Vasopressin), secreted by the posterior pituitary, promotes water reabsorption in the kidneys to regulate water balance.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine System and Hypothalamus Pituitary Axis
Which hormone, secreted by the posterior pituitary, plays a role in kidney water retention?
Vasopressin (ADH), secreted by the posterior pituitary, promotes water reabsorption in the kidneys, reducing water loss in urine.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine System and Hypothalamus Pituitary Axis
Which part of the pituitary gland releases vasopressin?
Vasopressin (ADH) is stored and released by the neurohypophysis (pars nervosa) of the posterior pituitary.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Endocrine System and Hypothalamus Pituitary Axis
Vasopressin-induced vasoconstriction occurs via:
V1R → PLC → Ca²⁺ increase, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.
Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)