When you touch boiling water, for example,get a cut, or even exercise too much, a special receptor on the neuron is activated, sending a signal to the brain - that hurts!.
VOA: standard.2010.05.04
The more the receptor gets activated the more feedback it gets to activate.
受体被激活的程度越高,产生的反馈效应就越强
There are 100 of these molecules, when a receptor gets activated a kinase activity gets activated, the kinase acts on the protein, the protein gets switched on, something new starts to happen inside the cell.
有一百个这样的分子,当受体被激活,激酶被激活后,激酶作用于蛋白,使蛋白活化,细胞中就会发生一些新变化
It gets produced in response to a signal so there's a binding of a ligand to a receptor, the enzyme that does this conversion is activated and more cycle AMP is released.
这类分子的产生是对信号做出的一种反应,当配体和受体结合时,催化这种转化过程的酶被激活,更多的cAMP释放出来
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