Non-Steroid Hormones

Hormone Regulation and Classification

• Steroid hormones can directly interact with DNA to regulate gene expression.

Characteristics of Non-Steroid Hormones

• A characteristic of non-steroid hormones is that they cannot diffuse through the cell membrane.
• Non-steroid hormones bind to receptors on the surface of the cell membrane to exert their effects.

Hormones and Their Functions

• Insulin is responsible for regulating blood sugar levels by promoting the uptake of glucose from the bloodstream into cells.
• Glucagon stimulates the release of glucose from the liver into the bloodstream.
• Adrenaline (Epinephrine) is secreted by the adrenal glands in response to stress, increasing heart rate, blood pressure, and blood sugar levels.
• Adrenaline plays a role in preparing the body for 'fight or flight' responses.

Hormone Synthesis

• Cholesterol is the primary precursor for the synthesis of steroid hormones.
• Amino acids, peptides, and glycoproteins are the primary precursors for the synthesis of non-steroid hormones.

Mechanism of Action of Non-Steroid Hormones

• Non-steroid hormones typically interact with the cell membrane by binding to receptors on the surface.
• The primary mechanism of action for non-steroid hormones is through signal transduction pathways.

Test your knowledge of non-steroid hormones with this informative quiz! Explore the diverse group of signaling molecules, their structures, synthesis, and mechanisms of action. Perfect for biology and endocrinology enthusiasts.