This category examines the adrenal gland’s two regions: the cortex, which produces hormones like cortisol for metabolism and stress response, and the medulla, which releases adrenaline and noradrenaline. It includes questions on hormone functions and regulatory pathways.
Adrenaline, secreted by the adrenal medulla, prepares the body for emergencies by increasing heart rate and blood flow.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Aldosterone increases sodium reabsorption, which helps retain water and maintain blood pressure.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Adrenaline (epinephrine) is secreted by the adrenal medulla in response to stress, increasing heart rate and alertness.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Cortisol, secreted by the adrenal cortex, is a stress hormone that helps in metabolism and immune response regulation.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Adrenaline (epinephrine) is secreted by the adrenal medulla and prepares the body for the "fight or flight" response.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Cortisol, secreted by the adrenal cortex, plays a crucial role in the metabolism of carbohydrates, proteins, and fats.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Addison’s disease is caused by insufficient secretion of both aldosterone and cortisol by the adrenal cortex.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Adrenaline (epinephrine) is secreted by the adrenal medulla in response to stress, increasing heart rate and alertness.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Aldosterone, a mineralocorticoid secreted by the adrenal cortex, increases sodium reabsorption in the kidneys.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Epinephrine (Adrenaline), secreted by the adrenal medulla, is the "fight-or-flight" hormone that prepares the body for emergency situations.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Cortisol is a glucocorticoid that regulates glucose metabolism by stimulating gluconeogenesis.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
Epinephrine (Adrenaline), secreted by the adrenal medulla, prepares the body for emergency situations.
Ref: NCERT Class 11 Biology Chapter 19: Chemical Coordination and Integration Adrenal Gland - Cortex and Medulla
