Question

Threshold stimulus increases
permeability of plasma membrane for
ions.
Nat
CH
K+
Cat​

Answer 1

Answer:

increase the membrane potential (hyperpolarize the cell) because the presence of extra potassium outside the cell will make the potassium equilibrium potential more negative. c. increase the membrane potential because the excess positive charge on the outside of the cell makes the inside relatively more negative.

Answer 2

Answer:

ꜱᴛʀᴜᴄᴛᴜʀᴇ ᴄᴀɴ ʙᴇ ᴀʟᴛᴇʀᴇᴅ ʙy ʜᴏʀᴍᴏɴᴇꜱ, ᴛᴇᴍᴩᴇʀᴀᴛᴜʀᴇ, ᴇʟᴇᴄᴛʀɪᴄᴀʟ ᴄʜᴀʀɢᴇ ᴏꜰ ᴛʜᴇ ᴍᴇᴍʙʀᴀɴᴇ ᴀɴᴅ ᴏᴛʜᴇʀ ꜰᴀᴄᴛᴏʀꜱ. ᴛᴇᴍᴩᴇʀᴀᴛᴜʀᴇ ᴍᴀᴋᴇꜱ ᴛʜᴇ ʟɪᴩɪᴅ ᴍᴏʀᴇ ꜰʟᴜɪᴅ ᴀɴᴅ ᴍᴏʀᴇ ᴩᴇʀᴍᴇᴀʙʟᴇ, ꜱᴏ ᴍᴇᴍʙʀᴀɴᴇꜱ ᴛʜᴀᴛ ɴᴇᴇᴅ ᴛᴏ ᴡɪᴛʜꜱᴛᴀɴᴅ ʜɪɢʜ ᴛᴇᴍᴩᴇʀᴀᴛᴜʀᴇꜱ ᴏꜰᴛᴇɴ ᴄᴏɴᴛᴀɪɴ ᴍᴏʀᴇ ꜱᴀᴛᴜʀᴀᴛᴇᴅ ꜰᴀᴛꜱ ᴛᴏ ᴍᴀᴋᴇ ᴛʜᴇᴍ ꜱᴛᴀʙʟᴇ.