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
tresset_1 [31]
3 years ago
9

Why is the resting membrane potential negatively charged?

Biology
1 answer:
Iteru [2.4K]3 years ago
6 0

Explanation:

The resting membrane potential is negative due to the buildup of more sodium ions outside the cell than potassium inside.

Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential.

Further Explanation:

Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficient. Parts of a neuron are separated into the

dendrites which receive messages from other neurons allowing them to pass and some of the cell body which contains typical cell components like the nucleus, endoplasmic reticulum and mitochondria.

The axon is an insulated (by the myelin sheath) tubular structure which acts as a bridge to price impulses to other neurons these also contain axon hillocks which are junctions between the axon and cell body

Synapses are junctions where axons connect to dendrites of other neurons at these junctions chemical reactions occur in order to facilitate the passage of information as chemical signals.

There are several neuron types which include sensory motor and into neurons which bridge the two.

  • The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
  • Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more Na+ than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential

Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about neurotransmitters at brainly.com/question/9424160

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

You might be interested in
Even though rodents known as sugar gliders and flying squirrels are members of distinctly different groups of organisms and live
EleoNora [17]

Answer:

convergent evolution.

Explanation:

When organisms of distantly related species or groups are found in similar environmental conditions, they develop some similar features which are otherwise not present in their ancestral species. This is called convergent evolution. Convergent evolution also results in the development of similar traits in the distantly related organisms that are found in distantly located geographical regions having similar environmental conditions. Therefore, the presence of the same features in rodents and flying squirrels represent convergent evolution.

4 0
3 years ago
All are methods for disposal of hazardous wastes except
uranmaximum [27]
Deep well injections
6 0
4 years ago
Read 2 more answers
How many sets of chromosomes do you start out with and end with in mitosis?????
wlad13 [49]

Answer:

In mitosis you start with the full amount of chromosomes 46 (also known as 2n or diploid). Then the resulting daughter cells also have the full amount of chromosomes present, 46.

4 0
2 years ago
What happens to an ecosystem if its river is destroyed
spin [16.1K]

Answer:

the earth will eventually crack amd form a new river and the clouds will precipitate and cause water for the stream of the river

3 0
3 years ago
Read 2 more answers
Acrostic for the word energy
Naddik [55]
E is for Ethical, an upright person
N is for Noble, self-sacrificing
E is for Excellent, of the finest character
R is for Remarkable, so exceptional
G is for Genteel, elegantly mannered
Y is for Youth, eternally young at heart
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the benefit of doing group work in class? Are there any drawbacks?
    11·2 answers
  • Match each planet to an accurate characteristic. mercury.
    5·2 answers
  • How does blood osmolarity compare between the two treatment groups?
    15·2 answers
  • A third species of kangaroo rat is introduced into the habitats of the two species from Question 5. If this third species is bio
    6·1 answer
  • What's the job of the endoplasmic reticulum? Chloroplast? Nucleus?
    14·1 answer
  • The kingdom, Protista, includes
    9·2 answers
  • When crude oil is spilled in the ocean, how is the ecosystem affected? A. The supply of nutrients is increased.
    10·1 answer
  • How is a loss of biodiversity most likely to affect an ecosystem?
    10·2 answers
  • A simple carbohydrate is
    14·1 answer
  • I cant find anything on this please help
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!