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ASHA 777 [7]
3 years ago
7

Describe the role of the following in synaptic communication:______.

Biology
1 answer:
Scilla [17]3 years ago
8 0

Answer:

1- Ionotropic receptors form ionic channels that allow certain ions to pass through the plasma membrane, and metabotropic receptors, which are associated with G proteins and have a modulating action on synaptic transmission.

2-Neurons communicate with each other through neurotransmitters, which are the molecules responsible for sending signals from one neuron to the next neuron. Neuromodulators also enter into communication between nerve cells.

3-Rapid PPSE occurs when postsynaptic nicotinic receptors on dendrites and neuronal cell bodies are activated through acetylcholine, which causes membrane depolarization and allows the entry of Na and Ca ions.

Acetylcholine also allows the activation of postsynaptic muscarinic receptors, which leads to the slow excitatory postsynaptic potential. This occurs when the channels are Ca and Na open and the K channels are closed.

4-When the neurotransmitters are attached to their receptors, the opening of the ion channels can be opened. This leads to two types of postsynaptic potentials being generated: postsynaptic excitation potentials (PEPs), if the membrane potential is depolarized, and the postsynaptic potential inhibitors (PIPs), if the membrane potential is hyperpolarized.

Explanation:

1-The importance of studying neurotransmitter receptors is that most of the drugs of clinical importance, such as anesthetics, anticonvulsants, etc., are based on the mechanisms of action of these receptors

2-Neurotransmitters allow them to produce or not action potential, serves to activate postsynaptic receptors and are capable of opening ion channels. On the other hand, neuromodulators are responsible for regulating the activity of ion channels.

3-The fast PPSE reaches 15 milliseconds. The slow PPSE lasts approximately 1-2 minutes.

4-PEPs occur when the ionic channels of Na + or Ca2 + are opened, while PIPs when the channels  of K + or CI- are opened.

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horrorfan [7]

The most likely explanation to the statement that digestive enzymes released in your mouth break down carbohydrates there but stop working in your stomach is C. The pH of your mouth and stomach are very different. The shape of the enzyme is affected by pH.

The pH of the mouth is near neutral whereas the pH of the stomach is acidic due to the hydrochloric acid present in the stomach.

All enzymes, including the digestive enzymes, require a certain pH at which they are better able to function. If the pH is altered, then the shape of the enzyme changes, which affects the shape of the active site of the enzyme. As a result, the substrate is no longer able to fit in the active site.

Hence, those digestive enzymes that function in the mouth will not function in the stomach due to the altered pH.

Although a part of your question is missing, you might be referring to this question:

Digestive enzymes released in your mouth break down carbohydrates there but stop working in your stomach. which is the most likely explanation?

A. Enzymes have only one active site. Once a substrate binds, that enzyme is no longer usable.

B. Enzymes are changed in a reaction. Enzymes made in the mouth are used up by the time they get to the stomach.

C. The pH of your mouth and stomach are very different. The shape of the enzyme is affected by pH.

D. There are no substrate molecules left when the enzyme reaches the stomach, so the enzyme stops working.

To learn more about digestive enzymes, click here:

brainly.com/question/11678128

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5 0
1 year ago
The nurse is irrigating a client's colostomy when the client begins to report cramping. what is the appropriate action by the nu
Vlad [161]

To put a heating pad where the cramps are

7 0
2 years ago
Analyze the need for laws to control water resources ,and compare water rights doctrine in the eastern U.S to that of the wester
valentina_108 [34]

To dissolve water related problems and to administer the use of water, there was the need of law to regulate resources of water.  

Explanation:

The area that deals with the resources of water and its uses, water related problems and its ownership is the law of water resources. Water law must be applied to those regions of water bodies that need to be maintained for certain purposes. This law of water works differently in the U.S.A and in the western states.

In the law of United States, it deals with the water rights that are different in different region and to resolve issues related to water. In the Union of Europe, it deals with the management and administration of resources of water.  

7 0
3 years ago
A cone has a volume of 7,560 cubic millimeters . what is the volume of a similar come that is one sixth size of this cone?
IRINA_888 [86]
Answer: 1,260 cubic mm

(1/6)(7,560) = 7,560/6 = 1,260
multiplying by 1/6 is the same as dividing by 6 (6 and 1/6 are reciprocals)

6 0
2 years ago
Read 2 more answers
Muscles move bones by _[blank]_.
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Answer:

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Explanation:

5 0
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