Hi everyone! I have to take exam soon. please check writting for me. Thank you all of you Essay 1: Genes that respond to touch. firstly, calmodium is a protein involved in calcium signling within the cell. secondly, the mechanism of gene respond to touch is that: the beginning is depolarzation of the membrane, then aspike of calcium concentration, increase in amount of calmudium protein and the last step is activation of other protein. We will focus on detail, when people touch, Canxi concentration become higher the binding of calmodium and Ca2+, after that action reaches the end of a nerve cell across membrane of propagation of neibouring cell. Inaddition, root plant reachs stone induce 2% of gene are activated (similar impact of people, wind, animal touch), it will respond to tactile sensation to other to survice with the change of envirnment. also, that experiment make suprise because of how far we touch, and with a large number gene. There are four situation occur when we touch. they are fast reaction(light trap), slow reaction (morphogenesis: rood navigation), electric sign and gene expression. In conclusion, I illutrated about mechanism of gene respond to touch. It is very interesting about plant. I hope that all of you will get more knowledge from that.