1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miss Akunina [59]
3 years ago
13

The binding of the neurotransmitter to receptors on the motor end plate causes which of the following to occur?

Biology
1 answer:
lutik1710 [3]3 years ago
5 0

The correct answer is: Binding of the neurotransmitter causes chemically gated sodium channels to open in the motor end plate (junctional folds of the sarcolemma) and sodium enters the cell.

Action potential travels through the membrane of the presynaptic cell causing the voltage-gated channels permeable to calcium ions to open. Ca2+ flow through the presynaptic membrane and increase the Ca concentration in the cell which will activate proteins attached to vesicles that contain a neurotransmitter (e.g. acetylcholine). Vesicles fuse with the membrane of the presynaptic cell, thereby release their contents into the synaptic cleft-space between the membranes of the pre- and postsynaptic cells. Neurotransmitter ACh binds to its receptors on the postsynaptic membrane and its binding causes depolarization of the target cell (muscle cell). Depolarization occurs because sodium enters the cell as a result of neurotransmitter receptor binding.

You might be interested in
Select the correct statement about the heart valves. a. The tricuspid valve divides the left atrium from the left ventricle. b.
sleet_krkn [62]
D) The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction.
3 0
2 years ago
3. What were the only elements around prior to Earth?
Andrew [12]
Gold, Silver, Mercury, Iron and etc.
5 0
3 years ago
Which of the following statements about gluconeogenesis in animal cells is true?
MakcuM [25]

Answer:

C. THE CONVERSION OF FRUCTOSE 1,6-BISPHOSPHATE to fructose- 6- phosphate is not catalyzed by phosphofructokinase -1, the enzyme involved in glycolysis.

Explanation:

This statement is true as the enzyme involved in this step is FRUCTOSE-1,6-BISPHOSPHATASE.

Gluconeogenesis is the coversion of non-carbohydrate molecules (lactic acid, amino acids, glycerol) through the pyruvic acid into glucose in the cells.

This process takes place mainly in the liver and occurs during periods of fasting, starvation, low carbohydrate diets.

The pathway of gluconeogenesis involves eleven steps of enzymatic catalyzed reactions.

In the conversion of fructose 1,6- bisphosphate to fructose-6-phosphate is catalyzed by fructose 1,6-bisphosphatase and not by phosphofructokinase -1 which is involved in glycolysis. This step is a rate-limiting step of the pathway.

The conversion of glucose-6-phospahte to glucose is not catalyzes by hexokinase but glucose -6- phosphatase.

7 0
3 years ago
The difference between aerobic and anaerobic glucose breakdown is
REY [17]
<span>the end products of aerobic glucose breakdown are carbon dioxide and water; the end product of anaerobic glucose breakdown is lactic acid</span>
8 0
3 years ago
List the four levels of organization in the human body from smallest to largest. Give an example of each level.
Elanso [62]
It starts with the cells<span>, followed by the tissues, then the organs, and ending with the organ .</span>
6 0
3 years ago
Other questions:
  • One of the two main functions of the nuclear envelope is to ____.​
    11·1 answer
  • Explain the differences between the types of point mutations
    5·1 answer
  • Gene therapy is an integral part of genome projects. It includes the correction of abnormal genes responsible for diseases. Whic
    15·1 answer
  • What is the best response to sirmulus
    8·1 answer
  • Does the example ( picture ) describe science or pseudoscience?
    7·1 answer
  • The movement of individuals into a population is called?
    10·1 answer
  • The steps of MITOSIS in the correct order- draw how the chromosomes look in each phase
    15·1 answer
  • How do molds reproduce ?
    11·2 answers
  • Which part of the station<br> was first built by Russia,<br> what does it's name mean?
    11·1 answer
  • To investigate a possible relationship between two factors, such as acidity and solubility, you must first identify the variable
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!