Question

define passive diffusion,active transport and facilated diffusion?​

Answer 1

Explanation:

Active Diffusion: Active transport is required for the entrance of large, insoluble molecules into the cell. Passive Diffusion: Passive diffusion allows the maintenance of a delicate homeostasis between the cytosol and extracellular fluid. Active diffusion and passive diffusion are the two types of membrane transport mechanisms used by cells.

Answer 2

• ᴘᴀssɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ ɪs ᴀ ᴍᴏᴠᴇᴍᴇɴᴛ ᴏғ ɪᴏɴs ᴀɴᴅ ᴏᴛʜᴇʀ ᴀᴛᴏᴍɪᴄ ᴏʀ ᴍᴏʟᴇᴄᴜʟᴀʀ sᴜʙsᴛᴀɴᴄᴇs ᴀᴄʀᴏss ᴄᴇʟʟ ᴍᴇᴍʙʀᴀɴᴇs ᴡɪᴛʜᴏᴜᴛ ɴᴇᴇᴅ ᴏғ ᴇɴᴇʀɢʏ ɪɴᴘᴜᴛ. ᴜɴʟɪᴋᴇ ᴀᴄᴛɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ, ɪᴛ ᴅᴏᴇs ɴᴏᴛ ʀᴇǫᴜɪʀᴇ ᴀɴ ɪɴᴘᴜᴛ ᴏғ ᴄᴇʟʟᴜʟᴀʀ ᴇɴᴇʀɢʏ ʙᴇᴄᴀᴜsᴇ ɪᴛ ɪs ɪɴsᴛᴇᴀᴅ ᴅʀɪᴠᴇɴ ʙʏ ᴛʜᴇ ᴛᴇɴᴅᴇɴᴄʏ ᴏғ ᴛʜᴇ sʏsᴛᴇᴍ ᴛᴏ ɢʀᴏᴡ ɪɴ ᴇɴᴛʀᴏᴘʏ
• ᴀᴄᴛɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ ɪs ᴛʜᴇ ᴍᴏᴠᴇᴍᴇɴᴛ ᴏғ ᴍᴏʟᴇᴄᴜʟᴇs ᴀᴄʀᴏss ᴀ ᴄᴇʟʟ ᴍᴇᴍʙʀᴀɴᴇ ғʀᴏᴍ ᴀ ʀᴇɢɪᴏɴ ᴏғ ʟᴏᴡᴇʀ ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ ᴛᴏ ᴀ ʀᴇɢɪᴏɴ ᴏғ ʜɪɢʜᴇʀ ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ—ᴀɢᴀɪɴsᴛ ᴛʜᴇ ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ ɢʀᴀᴅɪᴇɴᴛ. ᴀᴄᴛɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ ʀᴇǫᴜɪʀᴇs ᴄᴇʟʟᴜʟᴀʀ ᴇɴᴇʀɢʏ ᴛᴏ ᴀᴄʜɪᴇᴠᴇ ᴛʜɪs ᴍᴏᴠᴇᴍᴇɴᴛ.
• ғᴀᴄɪʟɪᴛᴀᴛᴇᴅ ᴅɪғғᴜsɪᴏɴ (ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs ғᴀᴄɪʟɪᴛᴀᴛᴇᴅ ᴛʀᴀɴsᴘᴏʀᴛ ᴏʀ ᴘᴀssɪᴠᴇ-ᴍᴇᴅɪᴀᴛᴇᴅ ᴛʀᴀɴsᴘᴏʀᴛ) ɪs ᴛʜᴇ ᴘʀᴏᴄᴇss ᴏғ sᴘᴏɴᴛᴀɴᴇᴏᴜs ᴘᴀssɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ (ᴀs ᴏᴘᴘᴏsᴇᴅ ᴛᴏ ᴀᴄᴛɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ) ᴏғ ᴍᴏʟᴇᴄᴜʟᴇs ᴏʀ ɪᴏɴs ᴀᴄʀᴏss ᴀ ʙɪᴏʟᴏɢɪᴄᴀʟ ᴍᴇᴍʙʀᴀɴᴇ ᴠɪᴀ sᴘᴇᴄɪғɪᴄ ᴛʀᴀɴsᴍᴇᴍʙʀᴀɴᴇ ɪɴᴛᴇɢʀᴀʟ ᴘʀᴏᴛᴇɪɴs.