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
Ad libitum [116K]
4 years ago
9

How does mg2+ block the effect of extracellular calcium on neurotransmitter release?

Chemistry
1 answer:
svetlana [45]4 years ago
5 0
<span>Magnesium is a strong anode than calcium. So, Mg will be oxidized into Mg2+. So instead of having Ca being the reducing agent, Mg will takes its place. That's how the "Blocking" occur.
</span><span>Without Ca2+, no neurotransmitter was released because the exocytosis of the synaptic vesicles is dependent upon Ca2+.
</span>So, when magnesium is added to the extracellular fluid it blocks the calcium channels and inhibits the release of <span>neurotransmitter.</span>
You might be interested in
Set up the ion formation equations, with ionization energy values for each electron in the valence layer, of the atoms of the ch
Studentka2010 [4]

Explanation:

Set up the ion formation equations, with ionization energy values for each electron in the valence layer, of the atoms of the chemical elements below: a) Na z=11 b) Ca z= 20 c) Sr z 38 d) Li z= 3 e) Cs z= 55 f) Be z= 43

7 0
3 years ago
A solution has an initial concentration of 0.0100 m hclo (ka = 3.5×10−8 ) and 0.0300 m naclo. what is the ph after the addition
In-s [12.5K]
When [HClO]= 0.01 M  & [ClO]^- = 0.03M & NaOH = 0.003 mol and
 Ka = 3.5 x 10^-8 
and the equation is:
            HClO + NaOH → Na^+  + ClO^-
initial     0.01     0.003        0.03     0.03
            -0.003 - 0.003      +0.003  + 0.003
Final    0.007        0             0.033      0.033

We can get the PH from this formula:
PH = Pka + ㏒[conjugent base/weak acid]
PH = -㏒Ka + ㏒[Na]/[HClO]
      = - ㏒ 3.5x10^-8 + ㏒(0.033/0.007)
     = 8.13 
6 0
3 years ago
What should you be careful of when measuring the temperature of a liquid in a beaker
andrezito [222]

The precaution to be taken while measuring the temperature of a liquid in a beaker is applying proper heat balance and taking all the required precautions.

  • A beaker with an open top contains a sample of liquid. It exposes this sample to light.
  • That liquid absorbs the light energy, turning it into heat energy. As a result, the liquid becomes warmer and evaporation is accelerated. As a result, there is less liquid in the beaker.
  • Since it is well known that the surface temperature of a liquid, along with air movement above the liquid surface, is one of the dominant factors affecting evaporation, I want to measure the evaporation rate as a function of surface temperature.
  • This can be done by applying a heat balance.

Learn more about heat balance at:

brainly.com/question/1292905

#SPJ9

3 0
2 years ago
Substance A and B are the same mass and at the same initial temperature. When the same amount of heat is added to each, the fina
Bingel [31]
That both of them are warm....at a certain temputurature causing one to fell,cozy
7 0
3 years ago
While ALL the information in a Schumer Box is important, which items do you think matter most on a day-to-day basis?
Oksana_A [137]

Answer:

The most important information is: financial charges, annual fees, minimum payments and how the balance is calculated.

Explanation:

A Schumer Box is a table where the credit card companies disclose all the terms and conditions necessary to make a contract with them, as well as disclose all fees, charges, balances and elements that make up the credit card.

All information shown on a Schumer Box is important, but the most important is that which deals directly with the customer's money or balance. This information is: financial charges, annual fees, minimum payments and how the balance is calculated.

3 0
3 years ago
Other questions:
  • Adding a neutron to an atom changes what property of the atom?
    7·1 answer
  • What is the correct name for Na20?
    6·2 answers
  • Helpppppppppppppppppppppppppppppppppp
    11·1 answer
  • The formula for mustard gas used in chemical warfare is c4h8scl2 (159.09 g/mol). what is the percentage of hydrogen in the compo
    5·1 answer
  • Which of the following is an example of commensalism?
    15·1 answer
  • For the chemical reaction C2H6 --&gt; C2H4 + H2 + 137kJ, the chemical energy of the
    15·1 answer
  • Suppose 6.54g of potassium bromide is dissolved in 50.mL of a 0.70 M aqueous solution of silver nitrate. Calculate the final mol
    6·1 answer
  • . Consider the following reaction : 4NH3+502 → 4NO + 6H20,suppose
    6·1 answer
  • Why does a plant have a cell wall and a cell membrane?<br>ASAP Pls have to turn it in at 11:00pm​
    14·1 answer
  • Consider the following reactions:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!