Ionotropic acetylcholine receptors are also called nicotinic acetylcholine receptors because beside acetylcholine (Ch) they respond to nicotine. These receptors are primary receptors in muscle for motor nerve-muscle communication that controls muscle contraction.

Two molecules of ACh are required for receptor to open. Since the receptors are linked to ion channels, the channels open. Opening of the channel allows positively charged ions to move across it: sodium enters the cell and potassium exits.

3 0

3 years ago

This is also due today! Please help :(

serg [7]

Answer:

For the cardboard column the 4 u DIDNT answer in order r Y Y N N

And for the Topaz column the ones in order that u DIDN'T answer are N Y Y

Explanation:

Cardboard is a solid and is inorganic but not naturally occurring or a mineral.

Topaz is not inorganic but is naturally occurring is a crystalline structure and is a mineral

4 0

3 years ago

What happens with the heat or energy earth receives from the sun?

Sonja [21]

All energy Earth receives from the sun is turned into energy for other things like food and nutrients.

3 0

3 years ago

What is the significance of a chemical formula?

Allushta [10]

Answer:

The significance of chemical formula is that it tells us a lot about the chemical reaction

like the name of elements involved in it, number of atom of each element and it also shows that which type of reaction is going on

like exothermic and endothermic, combination, decomposition etc

hope it helps

4 0

3 years ago