Dooodyo's question

[dooodyo]

Hey guys I have few questions so any help is really appreciated,

Well I was reading over Heinemann biology 2 about enzymes, and it gives an example of adrenaline
releasing cells and responsive cells and it talks about how contractile proteins enable the heart muscle
to contract. And well my question is that is the production of these contractile protein in the heart muscles
maintained by enzymes?

[shinny]

Hey guys I have few questions so any help is really appreciated,

Well I was reading over Heinemann biology 2 about enzymes, and it gives an example of adrenaline
releasing cells and responsive cells and it talks about how contractile proteins enable the heart muscle
to contract. And well my question is that is the production of these contractile protein in the heart muscles
maintained by enzymes?

From a year 12 perspective, all you need to be aware of is the Dogma of Molecular Biology and the idea of signal transduction. Basically protein is always synthesised from RNA via DNA, but for this DNA to be activated in the first place, some sort of signal will cause this. This is generally either a protein or steroid, which then leads to a cascade of signalling mechanisms that you don't need to worry about. So in the process of this cascade, there would be some enzymes being made, but ultimately, I'd say it's the protein or steroid signalling molecule that actually maintains it. If you go a step further though, there'd be some reason why this signal was released in the first place but meh.