Latest questions in this category.
During pregnancy, the placenta secretes progesterone, which helps maintain the uterine lining and prevent contractions.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
ADH (Vasopressin) helps in water reabsorption in the kidneys, reducing water loss in urine.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
ANF is a peptide hormone that causes vasodilation and reduces blood pressure by promoting sodium excretion.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Leptin, secreted by adipose tissue, signals the brain to reduce hunger and regulate energy balance.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Gastrin stimulates the secretion of hydrochloric acid and digestive enzymes in the stomach.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Testosterone, secreted by the testes, is responsible for male secondary sexual characteristics such as muscle growth and voice deepening.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Vasopressin (ADH) promotes water reabsorption in the kidneys, reducing urine output.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Erythropoietin, secreted by the kidney, stimulates the bone marrow to produce red blood cells.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Oxytocin, secreted by the posterior pituitary, stimulates uterine contractions during childbirth and milk ejection during lactation.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Oxytocin is secreted by the posterior pituitary, not the anterior pituitary.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Oxytocin plays a key role in the contraction of smooth muscles, especially during childbirth and milk ejection.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
Renin is secreted by the kidney and plays a crucial role in regulating blood pressure by activating the renin-angiotensin-aldosterone system (RAAS).
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Mechanism of Hormone Action - Second Messengers
