Answer:
When an action potential reaches the end of an axon, the nervous terminal or the varicosities release neurotransmitters. These bind to receptors on the postsynaptic neuron. Eventually, the neurotransmitters are removed from the synapse. Some are reabsorbed by the presynaptic neuron or sending neuron, a process called reuptake, and some are broken down, in a process called enzymatic degradation.
Explanation:
Neurotransmitter liberation occurs from the nervous terminal or varicosities, in the neuronal axon. There are vesicles in the sending neuron that have neurotransmitters in their interior. When an <em>action potential reaches the nervous terminal</em> or the varicosities, it occurs a notable increase in the <em>neurotransmitter liberation</em> by exocytose. This is possible because calcium channels open letting the ion in the cell through the membrane, and letting the neurotransmitter out to the synaptic space. The molecule binds to its receptor in the postsynaptic neuron. This receptor is a <em>protein structure that triggers an answer</em>. As long as the signal molecule is in the synaptic space, it keeps linking to its receptor and causing a postsynaptic answer. <em>To stop this process</em>, the <em>neurotransmitter must be taken out from the synaptic space.</em> There are two mechanisms by which the neurotransmitter can be eliminated:
Enzymatic degradation/deactivation: In the synaptic space, there are <em>specific enzymes that can inactivate the neurotransmitter </em><em>by breaking it down or degrading it</em><em>.</em> In this case, the new molecule won’t be able to bind to the neurotransmitter receptor.
Reuptake: There are receptors located in the presynaptic membrane that can capture de molecule to store it back in new vesicles, for posterior use. These <em>transporters are active transport proteins</em> that easily recognize the neurotransmitter.
Pseudoscience are any methods, theories, or systems that have no scientific basis.
Some errors includes:
- Having contradictory information
- Exaggerated and false cliams
- Reliance on bias rather than facts
- etc
hope this helps
Answer:
ATP contains a large amount of energy because it has high-energy phosphate bonds.
Explanation:
ATP is an unstable molecule which hydrolyzes when it react with water to form ADP (adenosine diphosphate) and inorganic phosphate. The large amount of energy of ATP comes from the two high-energy phosphate bonds
Because, even if they sustain a steady birth and death rate, food is bound to grow somewhat shorter at a certain point, and it will decrease. but in the absence of eating as much, the food has a short booming growth rate as well, which raises the organisms growth rate again, and it sustains this cycle of ups and downs. the same exact thing happens with its predators. another thing that can happen is a deadly disease, or a sudden heat wave or freezing period, or the finding of even more healthy food that create more production.
i hope this helps, and if it does a lot, can you please mark it as brainiest? (i usually don't ask this, but at the moment I'm kinda desperate.)