unit 10: hormones classifications Flashcards
synthesis and storage: peptide hormones
made in advance, stored in secretory vesicles
synthesis and storage: steroid hormones
synthesized on demand from precursors
synthesis and storage: catecholamines
made in advanced stored in secretory vesicles
synthesis and storage: thyroid hormones
made in advanced, precursor stored in secretory vesicles
release from parent cell: peptide hormone
exocytosis
release from parent cell: steroid hormone
simple diffusion
release from parent cell: catecholamines
exocytosis
release from parent cell: thyroid hormone
transport protein
transport in blood: peptide hormones
dissolved in plasma
transport in blood: steroid hormones
bound to carrier proteins
transport in blood: catecholamines
dissolved in plasma
transport in blood: thyroid hormones
bound to carrier proteins
location of receptor: peptide hormones
cell mem
location of receptor: steroid hormones
cytoplasm, nucleus, some in cell mem
location of receptor: catecholamines
cell mem
location of receptor: thyroid hormones
nucleus
response to receptor-ligand binding: peptide hormones
activation of 2nd messenger systems, may activate genes
response to receptor-ligand binding: steroid hormones
activation of genes for transcription and translation- may have nongenomic actions
response to receptor-ligand binding: catecholamines
activation of 2nd messenger systems
response to receptor-ligand binding: thyroid hormones
activation of genes for transcription and translation
general target response: peptide hormones
modification of existing proteins and induction of new protein synthesis
general target response: steroid hormones
induction of new protein synthesis
general target response: catecholamines
modification of existing proteins
general target response: thyroid hormones
induction of new protein synthesis
peptide examples
insulin, parathyroid hormone
steroid hormone examples
estrogen, androgens cortisol
catecholamines examples
epinephrine, NE, dopamine
thyroid hormones examples
thyroxine (T4)