Question

Write the exact function of the following:
i) Ribosomes.
ii) Mitochondria.
111) Nerve tissue.
iv) Phloem parenchyma
v) Micropyle.​

Answer 1

Answer:

(i)Ribosomes

Ribosomes are highly important macromolecules that are composed of two subunits;one large and one small.they are found either floating freely in the cytoplasm or attached to the endoplasmic reticulum.

Explanation:

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Answer 2

Answer:

ᴛʜᴇ ғᴜɴᴄᴛɪᴏɴs ᴏғ ᴛʜᴇ ɢɪᴠᴇɴ ᴀʀᴇ :

(ᴀ) ᴘʟᴀsᴍᴀ ᴍᴇᴍʙʀᴀɴᴇ 

ɪᴛ sᴇᴘᴀʀᴀᴛᴇs ᴛʜᴇ ᴄᴏɴᴛᴇɴᴛ ᴏғ ᴛʜᴇ ᴄᴇʟʟ ғʀᴏᴍ ɪᴛs sᴜʀʀᴏᴜɴᴅɪɴɢs.

ɪᴛ ʀᴇɢᴜʟᴀᴛᴇs ᴛʜᴇ ᴇɴᴛʀʏ ᴏғ ᴄᴇʀᴛᴀɪɴ sᴏʟɪᴅs ᴀɴᴅ ɪᴏɴs ɪɴᴛᴏ ᴛʜᴇ ᴄᴇʟʟ.

ɪᴛ ᴍᴀɪɴᴛᴀɪɴs ᴛʜᴇ sʜᴀᴘᴇ ᴏғ ᴛʜᴇ ᴄᴇʟʟ ᴛʜᴀᴛ ɪs ᴛʜᴇ ᴀɴɪᴍᴀʟ ᴄᴇʟʟ.

(ʙ) ʀɪʙᴏsᴏᴍᴇ

ɪᴛs ᴍᴀɪɴ ғᴜɴᴄᴛɪᴏɴ ɪs ᴘʀᴏᴛᴇɪɴ sʏɴᴛʜᴇsɪs.

(ᴄ) ʟʏsᴏsᴏᴍᴇ     

ɪɴᴛʀᴀᴄᴇʟʟᴜʟᴀʀ ᴅɪɢᴇsᴛɪᴏɴ ᴀɴᴅ ᴅᴇsᴛʀᴏʏ ғᴏʀᴇɪɢɴ sᴜʙsᴛᴀɴᴄᴇs.

ᴡʜᴇɴ ᴀ ᴄᴇʟʟ ɪs ᴏʟᴅ ᴏʀ ɪɴᴊᴜʀᴇᴅ ᴛʜɪs ʀᴀᴘɪᴅʟʏ ᴅᴇsᴛʀᴏʏ ᴏʀɢᴀɴᴇʟʟᴇs ʜᴇɴᴄᴇ ᴄᴀʟʟᴇᴅ sᴜɪᴄɪᴅᴇ ʙᴀɢs.

(ᴇ) ɢᴏʟɢɪ ᴀᴘᴘᴀʀᴀᴛᴜs

sʏɴᴛʜᴇsɪs ᴀɴᴅ sᴇᴄʀᴇᴛɪᴏɴ ᴏғ ᴇɴᴢʏᴍᴇs, ʜᴏʀᴍᴏɴᴇs ᴀɴᴅ ᴇᴛᴄ.

ᴛʜᴇ ғᴏʀᴍᴀᴛɪᴏɴ ᴏғ ᴀᴄʀᴏsᴏᴍᴇ ᴏғ sᴘᴇʀᴍ.

(ᴅ) ᴍɪᴛᴏᴄʜᴏɴᴅʀɪᴀ

ʀᴇʟᴇᴀsᴇ ᴏғ ᴇɴᴇʀɢʏ ғᴏʀᴍ ᴘʏʀᴜᴠɪᴄ ᴀᴄɪᴅ ᴘʀᴏᴅᴜᴄᴇᴅ ɪɴ ᴛʜᴇ ᴄʏᴛᴏᴘʟᴀsᴍ ɪɴ ᴛʜᴇ ғᴏʀᴍ ᴏғ ᴀᴛᴘ ᴀɴᴅ ʜᴇʟᴘs ɪɴ ᴛʜᴇ sʏɴᴛʜᴇsɪs ᴏғ ʀᴇsᴘɪʀᴀᴛᴏʀʏ ᴇɴᴢʏᴍᴇs.

(ғ) ᴄʏᴛᴏᴘʟᴀsᴍ

ᴅɪғғᴇʀᴇɴᴛ ᴏʀɢᴀɴᴇʟʟᴇ ɪs ᴄᴏɴᴛᴀɪɴᴇᴅ ɪɴ ɪᴛ ᴘᴇʀғᴏʀᴍ ᴅɪғғᴇʀᴇɴᴛ ғᴜɴᴄᴛɪᴏɴs.

ᴀʟʟ ᴍᴇᴛᴀʙᴏʟɪᴄ ᴀᴄᴛɪᴠɪᴛɪᴇs ᴏᴄᴄᴜʀ ɪɴ ɪᴛ.

ᴍᴇᴅɪᴜᴍ ᴏғ ᴇᴀʀʟɪᴇʀ sᴛᴇᴘs ᴏғ ʀᴇsᴘɪʀᴀᴛɪᴏɴ

(ɢ) ᴀsᴛᴇʀs ᴏғ ᴄᴇɴᴛʀᴏsᴏᴍᴇ

ᴘʀᴇsᴇɴᴛ ɪɴ ᴀɴ ᴀɴɪᴍᴀʟ ᴄᴇʟʟ ᴀɴᴅ ʜᴇʟᴘs ᴅᴜʀɪɴɢ ᴛʜᴇ ᴘʀᴏᴄᴇss ᴏғ ᴍɪᴛᴏsɪs. 

(ʜ) ᴄʜʀᴏᴍᴏsᴏᴍᴇs

ᴄʜʀᴏᴍᴏsᴏᴍᴇs ᴄᴀʀʀʏ ʜᴇʀᴇᴅɪᴛᴀʀʏ ɪɴғᴏʀᴍᴀᴛɪᴏɴ ᴏʀ ɢᴇɴᴇs.

(ɪ) ɢʟʏᴄᴏɢᴇɴ ɢʀᴀɴᴜʟᴇ

sᴛᴀʀᴄʜ ɢʟʏᴄᴏɢᴇɴ ᴀɴᴅ ғᴀᴛ ᴄᴏɴᴛᴀɪɴɪɴɢ ɢʀᴀɴᴜʟᴇs sᴇʀᴠᴇ ᴀs ғᴏᴏᴅ ғᴏʀ ᴛʜᴇ ᴄᴇʟʟ.

(ᴊ) ᴠᴀᴄᴜᴏʟᴇs

sᴛᴏʀᴀɢᴇ ᴏғ ᴡᴀᴛᴇʀ ᴀɴᴅ ᴏᴛʜᴇʀ sᴜʙsᴛᴀɴᴄᴇs, ғᴏᴏᴅ ᴘɪɢᴍᴇɴᴛs ᴀɴᴅ ᴡᴀsᴛᴇ ᴘʀᴏᴅᴜᴄᴛs.

ɢɪᴠᴇ ᴛᴜʀɢɪᴅɪᴛʏ ᴛᴏ ᴛʜᴇ ᴘʟᴀɴᴛ ᴄᴇʟʟ ʙʏ ᴘʀᴇssɪɴɢ ᴀɢᴀɪɴsᴛ ᴀ ᴄᴇʟʟ ᴡᴀʟʟ.