Corticoids(adrenal steroids) 21.5 Steroid receptors have Glucocorticoids increase M ineralocorticoids maintain tir amatory action HaH severalindependent domains CHLOR Steroid sex hormones gens are ironEd Figure 21.6 Several types of hydrophobic small molecules B-estradiol testosteron activate transcription factors Development and morphogenesis Corticoids and steroid sex tamin d is required Retinoic acid is a morphogen hormones are synthesized from 、sO and calcium metabolism cholesterol. vitamin d is a steroid thyroid hormones are synthesized from tyrosine, and retinoic acid is synthesized from isoprene(in fish Thyroid hormones control basal metabolic rate liver) 请莘大 triiodothyronine (T3)Figure 21.6 Several types of hydrophobic small molecules activate transcription factors. Corticoids and steroid sex hormones are synthesized from cholesterol, vitamin D is a steroid, thyroid hormones are synthesized from tyrosine, and retinoic acid is synthesized from isoprene (in fish liver). 21.5 Steroid receptors have several independent domains