<prompt> Which of the following is the most likely effect of insulin at the cellular receptor level?stimulating tyrosine kinasebinding to ion channelsbinding to intracellular erb A receptorsstimulating guanylate cyclase  <response>: Insulin binding to its receptor stimulates tyrosine kinase activity. Other stimulators of protein kinases include platelet-derived growth factor and epidermal growth factor. Tyrosine phosphorylation results from this interaction. Insulin-resistant states can be caused by pre-receptor resistance mutated insulin, anti-insulin antibodies or receptor and post receptor resistance. 