Do all cells respond to neurotransmitters?
Also, can someone please explain whether neurotransmitters control the release of hormones?
I'm confused..
What would make a cell respond to a neurotransmitter? What makes a cell respond to any signal (hormone, etc)?
Well from what I've read, both competitive and non-competitive inhibition is reversible. I know that competitive inhibition can be reversed by increasing the substrate concentration to eventually 'force' the competitive inhibitor to release it self from the active site. [Does it lose it's avidity for the enzyme?]
However, I'm not sure how non-competitive inhibition is reversed? And even though it somehow may be reversed, does the enzyme retain it's conformation shape since it alters?
You answered the question correctly there (at least in concepts, i wont judge it on it's execution). It still has affinity for the enzyme, it's just that theres so much substrate that its overwhelming the inhibitor. It makes more sense in terms of university level understanding of enzyme kinetics, it definitely becomes more intuitive but your understanding is basically correct there. If you're doing VCE Chemistry, they might briefly touch upon this kind of thing.
Non-competitive inhibition can be reversed via the same mechanism,
i believe (i could be wrong, been awhile since ive done biochemistry). I'm not sure if this level of knowledge is required for VCE, it certainly wasn't required when i did it. The conformational shape may or may not change depending on several factors which are beyond the scope of VCE.
Neurotransmitters are only released by neurons. Therefore, only neurons respond to them.
Glands in the brain such as the hypothalamus and pituitary control the release of hormones.
The function of a neurotransmitter is to transmit signals from a neuron to a target cell across a synapse. From my understanding, they don't have anything to do with hormones.
This isn't 100% correct but i'm not sure what you need to know for this regarding VCE. The wording is a bit misleading as well. Whilst only neurons respond to neurotransmitters (true for VCE anyway), it's not that only neurons are doing things. The neurons attached to your leg muscle will be stimulated but as a result of that, your leg muscle responds to the signal and twitches.
Neurotransmitters and hormones are connected in a way that is probably beyond VCE. Neurotransmitters and hormones are similar in that they are both signalling mechanisms, they allow one part of the body or one cell to do another part of the body or another cell to do something.