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
beks73 [17]
3 years ago
8

"The occurrence of the all-or-none ________________ results from depolarization in response to rapid entry of ____________ ions

into the neuron A. resting potential; sodium B.action potential; sodium C.resting potential; potassium D.action potential; potassium E.hormonal response; potassium F. hormonal response; sodium"
Chemistry
2 answers:
Leno4ka [110]3 years ago
8 0

Answer:

The correct answer is

B.action potential; sodium

Explanation:

Action potential

Nerve action potentials are initiated and propagated in an all or nothing fashion. The all-or nothing action potential is initiated when the membrane potential threshold value is reached

Sodium

Voltage-gated Na⁺ ions membrane channels open enabling an influx of sodium ions to rapidly enter the cell, raising the membrane potential up to +40 mV

Depolarization  in the neuron is based ion exchange channels opening to allow the rapid influx of sodium ions (Na⁺) and the efflux of potassium ions (K⁺)

The neuronal responds rapidly and for short periods to the activation of an ion channel receptor by a drug or natural neurotransmitter is rapid rel

Anestetic [448]3 years ago
4 0

Answer:

B. action potential; sodium.

Explanation:

Action potential occurs when the membrane potential of a specific cell location rapidly rises and falls.

These are generated by special types of voltage-gated ion channels embedded in a cell's plasma membrane. They are shut when the membrane potential is near the resting potential of the cell, but they open rapidly if the membrane potential increases to a defined threshold voltage, depolarising the membrane potential, this then allows the inward flow of sodium ions, which changes the electrochemical gradient.

You might be interested in
The molecular weight of table salt, NaCI, is 58.8 g/mol. A tablespoon of salt weighs 6.37 grams. Calculate the number of moles o
svetlana [45]
6.37/ 58.5= .108888889
Since it had 3 sig figs the answer is 0.109
7 0
3 years ago
Read 2 more answers
describe how energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to
photoshop1234 [79]

Explanation:

Energy pyramid refers to the representation of how the energy is transferred in the organism at each level in an ecosystem. The producers are kept at the lower level whereas the top carnivore at the top.

1. The energy linearly flows in the energy pyramid which can be represented in the form of the food chain. In a food chain, the energy flows when one organism eats another organism which after digestion provides energy.

2. the energy is transferred in a  food chain according to ten per cent law which states that only ten per cent of energy will be transferred between the organism in a food chain.

6 0
3 years ago
4 Na + O2 2 Na20 grams of Na are required to produce 52.45 grams of Na2O. Round your answer to the nearest whole number​
lukranit [14]

Answer:

4

N

a

+

O

2

→

2

N

a

2

O

.

By the stoichiometry of this reaction if 5 mol natrium react, then 2.5 mol

N

a

2

O

should result.

Explanation:

The molecular mass of natrium oxide is

61.98

g

⋅

m

o

l

−

1

. If

5

m

o

l

natrium react, then

5

2

m

o

l

×

61.98

g

⋅

m

o

l

−

1

=

154.95

g

natrium oxide should result.

So what have I done here? First, I had a balanced chemical equation (this is the important step; is it balanced?). Then I used the stoichiometry to get the molar quantity of product, and converted this molar quantity to mass. If this is not clear, I am willing to have another go.

Explanation:

5 0
3 years ago
What is the name of upcomming new element?​
padilas [110]

Answer:

According to IUPAC(international union of pure and applied chemistry)

Explanation:

there are four upcoming new element they are

.nihonium

.mascovium

.tennessine

.oganesson

3 0
4 years ago
What steps should a scientist take before forming a hypothesis
lord [1]

Before making a hypothesis, a scientist should make observations and conduct research.

I hope this helps.

4 0
3 years ago
Other questions:
  • How does organisms affect soil formation?
    8·1 answer
  • Would you expect the nonbonding electron-pair domain in NH3 to be greater or less in size than for the corresponding one in PH3?
    10·1 answer
  • Is matter smooth and continuous?
    8·1 answer
  • A valve to a new chamber in the bottle is opened, and the gas expands to 2 x 10-3 m3. (The gas does no work in this process beca
    14·1 answer
  • What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?
    15·2 answers
  • PLZ HURRY
    8·1 answer
  • Which is NOT an official SI unit of measure, kelvin, degree Celsius, second, liter
    15·1 answer
  • In the extraction of iron, carbon monoxide acts as O A catalyst OB an inert gas . an oxidising agent . a reducing agent .
    10·1 answer
  • COMO HA CONTRIBUIDO JUNTO A LA MOLALIDAD Y LA NORMALIDAD, CON EL DESARROLLO TECNOLOGICO Y DE LA HUMANIDAD.
    14·1 answer
  • Please help!!! Best answer will get brainliest
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!