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
Bess [88]
3 years ago
8

_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of

the postsynaptic membrane to Na and K
Biology
1 answer:
Hoochie [10]3 years ago
5 0

Complete question:

The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K

  • True
  • False

Answer:

TRUE

Explanation:

The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.

Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.

Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.

K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.

Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.

You might be interested in
Is race a biological characteristic determined by our genes?
Harman [31]

Answer:

No, they are not. The concept of human races appears to be solidly grounded in present-day biology and our evolutionary history. But if you asked that conference of geneticists to give you a genetic definition of race, they wouldn’t be able to do it. Human races are not natural genetic groups; they are socially constructed categories. Genes certainly reflect geography, but unlike geography, human genetic differences don't fall along obvious natural boundaries that might define races.

6 0
2 years ago
A box is at rest on the ground. An unbalanced force acts on the box and causes it to start moving. The box moves 10 meters in 2
n200080 [17]
The box stopped moving because the force stopped pushing . The average speed of the box would be 5 meters per second
3 0
3 years ago
At which of thes following would a tropicl rain forest be least likely to exist
valina [46]

Answer:40

Explanation:

5 0
3 years ago
Read 2 more answers
Plz help me well mark brainliest!!
Nitella [24]
C. The problem of endangered species
7 0
3 years ago
By regulating the cell cycle, multicellular organisms gain which of these benefits?
Salsk061 [2.6K]

Answer:

The regulation of the cell cycle helps in wound healing as well as replacing the lost cells by division. Thus, options B and C are correct.

Explanation:

The cell cycle can be described as the process of division and reproduction. The events result in the formation of multiple cells that have been able to deal with the repair mechanism of the body.

With the regulation of the cell cycle, the division process of the cell has been initiated and helps in the formation of multiple cells. The formed daughter cells have been able to heal the wounds effectively by accumulating and removing the dead cell.

The cell cycle has also been responsible for the replacement of lost cells, with the formation of new cells. Thus, options B and C are correct.

7 0
1 year ago
Other questions:
  • Which parts of the spectrum does chlorophyll a absorb best? answers?
    9·2 answers
  • 7. Mushrooms (fungus) and dandelions (plants) have which of the following characteristics in common?
    13·2 answers
  • Do humans impact Earth's climate?
    10·2 answers
  • Identify 2 characteristics of the alveoli that facilitate gas exchange and infer their significance for their process
    8·2 answers
  • Age-related loss of taste can be due to a(n) __________ number of sensory receptors
    10·1 answer
  • If it's 0 degrees outside and it's suppost to be twice as cold tomorrow how cold would it be?​
    12·1 answer
  • Can you think of a scenario in which BMI could be an inaccurate metric?
    14·1 answer
  • An ice is put in a beaker and left in the sun for long<br>What with happen to the iceblock?<br>​
    10·2 answers
  • 8. Suppose this mating pattern continues among scrub jays for several generations, what do you predict will happen to the number
    12·1 answer
  • Monoclonal antibodies to double-stranded RNA as probes of RNA structure in crude nucleic acid extracts. Nucl. Acids Res
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!