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The Endocrine S ystem Endocrine glands produce hormones

The Endocrine S ystem Endocrine glands produce hormones Hormones are secreted directly into the blood Blood transports them all over the body. Target cells have specific receptors in their membranes which the molecules bind to Groups of target cells are called target tissue.

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The Endocrine S ystem Endocrine glands produce hormones

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  1. The Endocrine System • Endocrine glands produce hormones • Hormones are secreted directly into the blood • Blood transports them all over the body • Target cells have specific receptors in their membranes which the molecules bind to • Groups of target cells are called target tissue

  2. Types of hormones Protein and peptide hormones (and those that are derivatives of amino acids) Steroid hormones

  3. How do hormones work? Adrenaline (a protein hormone) Adrenaline Receptor Cell membrane Adenyl Cyclase

  4. How do hormones work? Adrenaline (a protein hormone)

  5. How do hormones work? Adrenaline (a protein hormone) Cyclic AMP (cAMP) ATP

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