Biology - Chemical Coordination and Integration Question with Solution | TestHub
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Prolactin secretion from adenohypophysis is essential during lactation.
Reason (R): It helps in the ejection of milk from mammary glands.
In light of the above statements, choose thecorrectanswer from the options given below.
Options:
Answer:
Solution:
Prolactin is secreted by the anterior lobe of the pituitary gland (adenohypophysis). It regulates the growth of the mammary glands and the formation of milk in them. Thus, prolactin secretion is essential during lactation. This makes Assertion (A) true.
Oxytocin is synthesized by the hypothalamus and is released from the posterior pituitary (neurohypophysis). It stimulates the ejection of milk from the mammary glands, whereas prolactin is responsible for milk synthesis. Thus, Reason (R) is false.
Therefore, (A) is true but (R) is false.
Answer: (A) is true but (R) is false.
