What are proteins that act in a coordinated manner with hormone receptors to mediate gene expression?    Group of answer choicescoreceptorscohormones coactivatorsreceptor-transcription mediatorscotranscription factors

What must be present for any type of hormone to be able to act on a target cell?Multiple ChoiceProtease enzymesHormone response elementsProtein receptorsProtein channels

The molecules that bind to receptors in a signalling pathway to initiate a signal are called:Group of answer choicesTranscription factorsSecond messengersLigandsSubstrates

Peptide hormonesMultiple Choiceare able to pass through the membrane and bind to a receptor in the cytoplasm.bind to a receptor in the plasma membrane.act much more slowly than steroid hormones.initiate gene expression.are composed of a complex of four carbon rings.

Molecules that bind to a receptor and trigger signaling pathways are called                           Group of answer choicesagonistsantagonistsIRE-binding proteinspromotersligands

How does ligand binding to membrane receptors regulate transcription?Group of answer choicesAcetylationadenylationdeacylationphosphorylationguanylation