Question: how do steroid hormones and thyroid hormone affect change in...
How do steroid hormones and thyroid hormone affect change in their target cells?
|The hormone passes through the cell membrane and activates intracellular receptors that enter the nucleus to activate genes.|
|The hormone diffuses across the membrane through a protein carrier and binds to ribosomes to activate protein synthesis.|
|The hormone remains outside the cells and activates plasma membrane receptors to begin a second-messenger cascade.|
|The hormone phosphorylates enzymes by adding a phosphate group to either increase or decrease the enzyme's activity.|