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
ANTONII [103]
2 years ago
15

Why can information only pass in one direction across synapse?? pls help !!

Biology
1 answer:
klio [65]2 years ago
4 0
A Nerve electrical impulse only travels in one direction. There are several reasons nerve impulses only travel in one direction. The most important is synaptic transport.
In order for a "nerve impulse" to pass from cell to cell, it must cross synaptic junctions. The nerve cells are lined up head to tail all the way down a nerve track, and are not connected, but have tiny gaps between them and the next cell. These tiny gaps are called synapses.
When you get a nerve firing, you have probably heard that it is an electrical impulse that carries the signal. This is true, but it is not electrical in the same way your wall outlet works. This is electrochemical energy. Neurotransmitters are molecules that fit like a lock and key into a specific receptor. The receptor is located on the next cell in the line. When the neurotransmitter hits the receptor on the next cell in line, it signals that cell to begin a firing as well.
This will continue all the way down the length of the nerve track. In a nutshell, a nerve firing results in a chain reaction down the nerve cell's axon, or stemlike section. Sodium (Na+) ions flow in, potassium (K+) ions flow out, and we get an electrochemical gradient flowing down the length of the cell. You can think of it as a line of gunpowder that someone lit, with the flame traveling down the length of it. Common electrical power is more like a hose full of water, and when you put pressure on one end, the water shoots out the other.
Therefore, nerve impulses cannot travel in the opposite direction, because nerve cells only have neurotransmitter storage vesicles going one way, and receptors in one place.
You might be interested in
Can someone help me with this?
Contact [7]

Answer:

1) Forest floor

2) Understory

3) Canopy

4) Emergent

I hope this helps you :)

4 0
3 years ago
What is the specific function of a heterocyst cell of an Anabanea filament?
murzikaleks [220]
Heterocyst-forming cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament. In the presence of a source of combined nitrogen such as nitrate or ammonium, Anabaena PCC 7120 grows as long filaments containing hundreds of photosynthetic vegetative cells.
3 0
2 years ago
Like mammals, dolphins breathe air, but they are born underwater. Which is an innate behavior that a dolphin uses to breathe for
yan [13]
The answer is B.  This is because baby dolphins, when born, can't really comprehend a lot of things yet, so they, and the more adult dolphins there, try to get to the surface of the ocean to take a breath.  :D  I hope I helped!
4 0
3 years ago
What do plants need to make their own food? Check all that apply.
slavikrds [6]
The answer is the sun
5 0
3 years ago
Read 2 more answers
Science for environment health peace and equity​
zhenek [66]

Environment:

Science helps the environment because it creates an understanding between human impacts and the environment. By gaining this understanding of how the natural world works, the human race will better know how to protect it. In addition, scientific research is being used to reduce the impact of global warming, adapt to climate change, clean up polluted areas, and protect our own health.  

Health:

Science can be used to improve global health because it fuels discovery, informs the public on  health risks and programs, and helps all people live healthier and better lives. People with physical and mental health can benefit greatly from a variety of health sciences that specialize in their specific ailment. There have also been improvements in the technology used in health such as sanitation, vaccinations, and monitoring systems. By enabling doctors to do minimally invasive surgeries and using more comfortable scanning equipment, patients spend less time recuperating and can spend more time doing what they enjoy.

Peace:

It is my opinion that communication is the main way that science influences peace. Scientists from all over the world collaborate in an unbiased way to focus on one main goal, to deliver scientific breakthroughs to people regardless of religion, race and culture. Furthermore, science contributes to the social and economic development in a society (such as GDP, life expectancy, and literacy), reduction of poverty (through new was to meet basic needs for food, clothing, and shelter), and inspires a newfound peace mindset.

Equity:

Peace is a strong piece of science and, therefore, equity. Science is heavily rooted in the creation of new knowledge, the improvement of education, and the improvement of the quality of human life regardless of bias. Because of this, science can be used to research and find ways to solve pressing issues like racial and economic inequity. Learning of science in schools also has an impact on equity by teaching children the basis of our world and how to understand in order to gain skills that lead to better economic and social outcomes.

8 0
2 years ago
Other questions:
  • 1) What evidence is there that the human species has been successful so far? Explain.
    11·1 answer
  • In a 2009 study, presented by the National Academy of Science, 97% of climate scientists agree that human activity is causing gl
    15·2 answers
  • I NEED HELP PLEASE
    7·1 answer
  • The classification levels of a human are listed below from largest to smallest.
    10·2 answers
  • Which animal adaptation is well-suited for the canopy of a tropical rainforest?
    11·1 answer
  • The diagram below shows four processes, A, B, C, and D, by which carbon circulates between the atmosphere, plants, and animals.
    12·2 answers
  • Florida seagrass has special roots to help it stay anchored in moving ocean water as adaptation to its marine environment. True
    8·1 answer
  • True or false? The FLSA classifies employees as exempt or nonexempt from earning overtime pay for hours worked in excess of 50 h
    10·2 answers
  • What is reduced soil?
    5·2 answers
  • Help please
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!