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Nadusha1986 [10]
3 years ago
13

I NEED GELP ASAP!!!!

Biology
1 answer:
sesenic [268]3 years ago
6 0
D. Oxygen
It refers to the pathway by which a chemical element is moved through both the abiotic and biotic compartment of an ecosystem.
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_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of
Hoochie [10]

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.

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3 years ago
What is the abbreviation for the medical condition in which multiple follicular cysts form in both ovaries?
irga5000 [103]

Answer:

PCOS

Explanation:

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3 years ago
Proteins are responsible for which of the following functions?
mart [117]

Answer:

2, 3, 4, 5

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I think this is right sorry if I get it wrong

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How are environmental issues and food production related?
olga nikolaevna [1]

Answer: Food consumption and production have a considerable impact on the environment.  Food production contributes

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A model of a biological process is shown. What is the purpose of this process?
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D because this is the process of when the nitrogenous bases are going to match each other to form our DNA sequence
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