To maintain the constant steady state of our body, hormonal secretion is regulated by
To maintain the constant steady state of our body, hormonal secretion is regulated by
The correct option is C Both (a) and (b)
The correct option is C:
Explanation of the correct option:
- The body maintains a constant steady-state through a homeostatic mechanism called the feedback mechanism. The hormones function in response to positive feedback mechanisms and negative feedback mechanisms.
- A negative feedback mechanism makes the hormone secretion less or stops the production. This mechanism is involved during insulin production and release.
- After food consumption the blood glucose level increase which subsequently triggers the release of insulin from beta cells of the pancreas.
- Insulin promotes glucose absorption by the cells hence the blood sugar level decreases in the blood. This process further stops insulin production.
- Positive feedback mechanisms occur less frequently. This feedback mechanism increases hormone production, unlike the positive feedback mechanism. This mechanism comes into action during oxytocin production.
- Oxytocin stimulates muscle contractions during labor. The secretion of oxytocin results in further amplification of uterine contractions during delivery making the baby come out of the uterine wall. The oxytocin secretion stops after the birth of a baby.
Explanation of the incorrect option:
Option A:
The hormone secretion is regulated through a homeostatic mechanism called positive and negative feedback mechanism which subsequently maintains a constant steady state of the body.
Option B:
The hormones function in response to positive feedback mechanisms and negative feedback mechanisms. Both the mechanisms together maintain homeostasis of the body.
Option D:
Option D is incorrect. The pancreas is both an exocrine gland and the endocrine gland that secretes digestive enzymes through duct and insulin, glucagon directly to the blood.
Final answer: To maintain the constant steady-state of our body, hormonal secretion is regulated by both positive feedback and negative feedback.
Both (a) and (b)
The correct option is C:
Explanation of the correct option:
- The body maintains a constant steady-state through a homeostatic mechanism called the feedback mechanism. The hormones function in response to positive feedback mechanisms and negative feedback mechanisms.
- A negative feedback mechanism makes the hormone secretion less or stops the production. This mechanism is involved during insulin production and release.
- After food consumption the blood glucose level increase which subsequently triggers the release of insulin from beta cells of the pancreas.
- Insulin promotes glucose absorption by the cells hence the blood sugar level decreases in the blood. This process further stops insulin production.
- Positive feedback mechanisms occur less frequently. This feedback mechanism increases hormone production, unlike the positive feedback mechanism. This mechanism comes into action during oxytocin production.
- Oxytocin stimulates muscle contractions during labor. The secretion of oxytocin results in further amplification of uterine contractions during delivery making the baby come out of the uterine wall. The oxytocin secretion stops after the birth of a baby.
Explanation of the incorrect option:
Option A:
The hormone secretion is regulated through a homeostatic mechanism called positive and negative feedback mechanism which subsequently maintains a constant steady state of the body.
Option B:
The hormones function in response to positive feedback mechanisms and negative feedback mechanisms. Both the mechanisms together maintain homeostasis of the body.
Option D:
Option D is incorrect. The pancreas is both an exocrine gland and the endocrine gland that secretes digestive enzymes through duct and insulin, glucagon directly to the blood.
Final answer: To maintain the constant steady-state of our body, hormonal secretion is regulated by both positive feedback and negative feedback.
