Describe the mechanism of action of a protein hormone and of a steroid hormone.
Chemical Coordination and Integration
Original Khojo Papers practice question — not from a past board paper.
The adrenal cortex secretes glucocorticoids such as cortisol, which regulate carbohydrate metabolism and the response to stress, and mineralocorticoids such as aldosterone, which regulate salt and water balance. The adrenal medulla secretes adrenaline and noradrenaline, which prepare the body for emergency.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The cortex is controlled by ACTH from the pituitary; the medulla is under direct nervous control.
From the same topic and chapter, at a similar level.
Describe the mechanism of action of a protein hormone and of a steroid hormone.
Chemical Coordination and Integration
Explain how the level of glucose in the blood is regulated by hormones.
Chemical Coordination and Integration
Name the hormones of the anterior pituitary and state one function of each.
Chemical Coordination and Integration
State three differences between gymnosperms and angiosperms.
Plant Kingdom
State three characteristics of bryophytes and name one example.
Plant Kingdom
What are viruses, and why are they placed outside the five-kingdom system?
The Living World and Biological Classification