Question

what are tunnel proteins?

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Answer 1

Answer:

A channel protein serves as a tunnel across the membrane into the cell. More specifically, channel proteins help molecules across the membrane via passive transport, a process called facilitated diffusion. These channel proteins are responsible for bringing in ions and other small molecules into the cell.

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Answer 2

Answer:

➡ᴀ ᴄʜᴀɴɴᴇʟ ᴘʀᴏᴛɪᴇɴ sᴇʀᴠᴇs ᴀs ᴀ ᴛᴜɴɴᴇʟ ᴀᴄʀᴏss ᴛʜᴇ ᴍᴇᴍʙʀᴀɴᴇ ɪɴᴛᴏ ᴛʜᴇ ᴄᴇʟʟ

➡ᴍᴏʀᴇ sᴘᴇᴄɪᴀʟʟʏ, ᴄʜᴀɴɴᴇʟ ᴘʀᴏᴛᴇɪɴs ʜᴇʟᴘ ᴍᴏʟᴇᴄᴜʟᴇs ᴀᴄʀᴏss ᴛʜᴇ ᴍᴇᴍʙʀᴀɴᴇ

➡ᴛʜɪs ᴘʀᴏᴄᴇss ɪs ᴄᴀʟʟᴇᴅ ғᴀᴄɪʟɪᴛᴀᴛᴇᴅ ᴅɪғғᴜsɪᴏɴ

➡ᴛʜᴇsᴇ ᴄʜᴀɴɴᴇʟ ᴘʀᴏᴛᴇɪɴ ᴀʀᴇ ʀᴇsᴘᴏɴsɪʙʟᴇ ғᴏʀ ʙʀɪɴɢɪɴɢ ɪᴏɴs