Question

why does active transport require energy?
write answers​

Answer 1

Active transport requires energy to move substances across a plasma membrane, often because the substances are moving from an area of lower concentration to an area of higher concentration or because of their large size.

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Answer 2

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• ᴀᴄᴛɪᴠᴇ ᴛʀᴀɴsᴘᴏʀᴛ ʀᴇϙᴜɪʀᴇs ᴇɴᴇʀɢʏ ʙᴇᴄᴀᴜsᴇ ɪᴛ ɪs ɴᴏᴛ ᴀ ᴘᴀssɪᴠᴇ ᴘʀᴏᴄᴇss. ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇ ʜᴀs ᴛᴏ ɢᴏ ᴀɢᴀɪɴsᴛ ᴛʜᴇ ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ ɢʀᴀᴅɪᴇɴᴛ.

• ᴛʜᴇ ᴇɴᴇʀɢʏ ɪs ᴜsᴇᴅ ɪs ᴀᴛᴘ, ᴡʜɪᴄʜ ᴄᴏᴍᴇs ғʀᴏᴍ ʀᴇsᴘɪʀᴀᴛɪᴏɴ. ʜᴇɴᴄᴇ ɪᴛ ʀᴇϙᴜɪʀᴇs ᴇɴᴇʀɢʏ ᴛᴏ ʙᴇ ᴄᴀʀʀɪᴇᴅ ʙʏ ᴛʜᴇ ᴄᴀʀʀɪᴇʀ ᴘʀᴏᴛᴇɪɴs.

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