steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
steroid hormones
steroid hormones can pass easily through the plasma membrane, the hormones then bind to intracellular receptors which induce a metabolic pathway which later promotes transcription of a specific gene.
Local hormones become active without first entering the bloodstream. They act locally on the same cell that secreted them or on neighboring cells.Circulating hormones enter the bloodstream to be transported to their target cells.
Some hormones enter cells via receptor-mediated endocytosis.
nucleus nucleus
sodium ions enter the postsynaptic neuron.
steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
Receptors of protein hormones are present in plasma membrane but for steroid hormones no membrane receptors are needed as they can enter cell membrane , mobile receptors pic steroid hormones from cell membrane and carry them to nucleus .
No, non-steroid hormones use secondary messengers to transfer their signal into the cell.
steroid hormones can pass easily through the plasma membrane, the hormones then bind to intracellular receptors which induce a metabolic pathway which later promotes transcription of a specific gene.
Local hormones become active without first entering the bloodstream. They act locally on the same cell that secreted them or on neighboring cells.Circulating hormones enter the bloodstream to be transported to their target cells.
Some hormones enter cells via receptor-mediated endocytosis.
Materials enter and leave the nucleus through the selective membrane. The membrane always controls what leaves and enters the nucleus.
yes, for things like hormones. they are only situated on the outside of the plasma membrane- unlike intrinsic proteins which act as channel, or hydrophillic pores which allow charged molecules to enter the cell.
nucleus nucleus
Extracellular
sodium ions enter the postsynaptic neuron.
They are stretch receptors. As your bladder fills, these receptors are gradually stretched until they reach a stretch level high enough to enter your consciousness as a need to urinate.