Question

define cell membrane define cell membrane ​

Answer 1

Step-by-step explanation:

The cell membrane, also known as the plasma membrane, is a double layer of lipids and proteins that surrounds a cell.

Answer 2

Answer:

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ᴛʜᴇ ᴄᴇʟʟ ᴍᴇᴍʙʀᴀɴᴇ ɪs ᴀ ʙɪᴏʟᴏɢɪᴄᴀʟ ᴍᴇᴍʙʀᴀɴᴇ ᴛʜᴀᴛ sᴇᴘᴀʀᴀᴛᴇs ᴛʜᴇ ɪɴᴛᴇʀɪᴏʀ ᴏғ ᴀʟʟ ᴄᴇʟʟs ғʀᴏᴍ ᴛʜᴇ ᴏᴜᴛsɪᴅᴇ ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ ᴡʜɪᴄʜ ᴘʀᴏᴛᴇᴄᴛs ᴛʜᴇ ᴄᴇʟʟ ғʀᴏᴍ ɪᴛs ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ. ᴛʜᴇ ᴄᴇʟʟ ᴍᴇᴍʙʀᴀɴᴇ ᴄᴏɴsɪsᴛs ᴏғ ᴀ ʟɪᴘɪᴅ ʙɪʟᴀʏᴇʀ, ɪɴᴄʟᴜᴅɪɴɢ ᴄʜᴏʟᴇsᴛᴇʀᴏʟs ᴛʜᴀᴛ sɪᴛ ʙᴇᴛᴡᴇᴇɴ ᴘʜᴏsᴘʜᴏʟɪᴘɪᴅs ᴛᴏ ᴍᴀɪɴᴛᴀɪɴ ᴛʜᴇɪʀ ғʟᴜɪᴅɪᴛʏ ᴀᴛ ᴠᴀʀɪᴏᴜs ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇs.