Question

which segment of the nephrons shows 70-80% reabsorption of nutrients and water​

Answer 1

$\large{ AɴSᴡEʀ }$

Pʀᴏxɪᴍᴀʟ ᴄᴏɴᴠᴏʟᴜᴛᴇᴅ ᴛᴜʙᴜʟᴇ.

$\mathcal{ Exᴘʟᴀɴᴀᴛɪᴏɴ \: }$

ᴅᴜʀɪɴɢ ɢʟᴏᴍᴇʀᴜʟᴀʀ ғɪʟᴛᴇʀᴀᴛɪᴏɴ ɪɴ ᴋɪᴅɴᴇʏs, ᴜʟᴛʀᴀғɪʟʀᴛʀᴀᴛɪᴏɴ ᴏғ ʙʟᴏᴏᴅ ᴏᴄᴄᴜʀs ɪ.ᴇ., ᴀʟᴍᴏsᴛ ᴀʟʟ ᴛʜᴇ ᴄᴏɴsᴛɪᴛᴜᴇɴᴛs ᴏғ ᴘʟᴀsᴍᴀ ᴇxᴄᴇᴘᴛs ᴘʀᴏᴛᴇɪɴ ᴘᴀss ᴏɴᴛᴏ ᴛʜᴇ ʙᴏᴡᴍᴀɴ's ᴄᴀᴘsᴜʟᴇ .

ᴛʜᴇɴ ɴᴇᴀʀʟʏ 99% ᴏғ ᴛʜᴇ ғɪʟᴛʀᴀᴛᴇ ɪs ʀᴇᴀʙsᴏʀʙᴇᴅ ʙʏ ʀᴇɴᴀʟ ᴛᴜʙᴜʟᴇs. ᴘʀᴏxɪᴍᴀʟ ᴄᴏɴᴠᴏʟᴜᴛᴇᴅ ᴛᴜʙᴜʟᴇs sʜᴏᴡs ᴍᴀxɪᴍᴜᴍ ʀᴇᴀʙsᴏʀᴘᴛɪᴏɴ ᴀɴᴅ ɴᴇᴀʀʟʏ ᴀʟʟ ᴛʜᴇ ᴇssᴇɴᴛɪᴀʟ ɴᴜᴛʀɪᴇɴᴛs ᴀɴᴅ 70-80% ᴏғ ᴇʟᴇᴄᴛʀᴏʟʏᴛᴇs, ᴀɴᴅ ᴡᴀᴛᴇʀ ᴀʀᴇ ʀᴇᴀʙsᴏʀʙᴇᴅ ʙʏ ᴛʜɪs sᴇɢᴍᴇɴᴛ.

$\red{ HᴏPᴇ \: Iᴛ \: HᴇLᴘs \: ᴜ \: }$

Answer 2

Pʀᴏxɪᴍᴀʟ ᴄᴏɴᴠᴏʟᴜᴛᴇᴅ ᴛᴜʙᴜʟᴇ.

Exᴘʟᴀɴᴀᴛɪᴏɴ

ᴅᴜʀɪɴɢ ɢʟᴏᴍᴇʀᴜʟᴀʀ ғɪʟᴛᴇʀᴀᴛɪᴏɴ ɪɴ ᴋɪᴅɴᴇʏs, ᴜʟᴛʀᴀғɪʟʀᴛʀᴀᴛɪᴏɴ ᴏғ ʙʟᴏᴏᴅ ᴏᴄᴄᴜʀs ɪ.ᴇ., ᴀʟᴍᴏsᴛ ᴀʟʟ ᴛʜᴇ ᴄᴏɴsᴛɪᴛᴜᴇɴᴛs ᴏғ ᴘʟᴀsᴍᴀ ᴇxᴄᴇᴘᴛs ᴘʀᴏᴛᴇɪɴ ᴘᴀss ᴏɴᴛᴏ ᴛʜᴇ ʙᴏᴡᴍᴀɴ's ᴄᴀᴘsᴜʟᴇ .

ᴛʜᴇɴ ɴᴇᴀʀʟʏ 99% ᴏғ ᴛʜᴇ ғɪʟᴛʀᴀᴛᴇ ɪs ʀᴇᴀʙsᴏʀʙᴇᴅ ʙʏ ʀᴇɴᴀʟ ᴛᴜʙᴜʟᴇs. ᴘʀᴏxɪᴍᴀʟ ᴄᴏɴᴠᴏʟᴜᴛᴇᴅ ᴛᴜʙᴜʟᴇs sʜᴏᴡs ᴍᴀxɪᴍᴜᴍ ʀᴇᴀʙsᴏʀᴘᴛɪᴏɴ ᴀɴᴅ ɴᴇᴀʀʟʏ ᴀʟʟ ᴛʜᴇ ᴇssᴇɴᴛɪᴀʟ ɴᴜᴛʀɪᴇɴᴛs ᴀɴᴅ 70-80% ᴏғ ᴇʟᴇᴄᴛʀᴏʟʏᴛᴇs, ᴀɴᴅ ᴡᴀᴛᴇʀ ᴀʀᴇ ʀᴇᴀʙsᴏʀʙᴇᴅ ʙʏ ᴛʜɪs sᴇɢᴍᴇɴᴛ.