Question

Explain why mitochondria are semiautonomous organelles

Answer 1

Mitochondria is considered as autonomous cell organelle due to the following counts :

1)Mitochondria have their own DNA which can replicate independently. The mitochondrial DNA produces its own mRNA, tRNA and rRNA.

2)The organelles posses their own ribosomes, called mitoribosomes.

3)Mitochondria synthesize some of their own structural proteins. However, most of themitochondrial proteins are synthesized under instructions from cell nucleus.

4)The organelles synthesize some of the enzymes required for their functioning. e.g. succinate dehydrogenase.

5)They show hypertrophy .i.e.internal growth.


However, both their structure and functioning are controlled by the nucleus of the cell and availability of materials from the cytoplasm. Hence, they are termed as the 'semi-autonomous' cell organelles.

Answer 2

Answer:

Tʜᴇ ᴍɪᴛᴏᴄʜᴏɴᴅʀɪᴏɴ ɪs ᴀ ᴅᴏᴜʙʟᴇ ᴍᴇᴍʙʀᴀɴᴇ-ʙᴏᴜɴᴅ ᴏʀɢᴀɴᴇʟʟᴇ ғᴏᴜɴᴅ ɪɴ ᴍᴏsᴛ ᴇᴜᴋᴀʀʏᴏᴛɪᴄ ᴏʀɢᴀɴɪsᴍs. Sᴏᴍᴇ ᴄᴇʟʟs ɪɴ sᴏᴍᴇ ᴍᴜʟᴛɪᴄᴇʟʟᴜʟᴀʀ ᴏʀɢᴀɴɪsᴍs ʟᴀᴄᴋ ᴍɪᴛᴏᴄʜᴏɴᴅʀɪᴀ. A ɴᴜᴍʙᴇʀ ᴏғ ᴜɴɪᴄᴇʟʟᴜʟᴀʀ ᴏʀɢᴀɴɪsᴍs, sᴜᴄʜ ᴀs ᴍɪᴄʀᴏsᴘᴏʀɪᴅɪᴀ, ᴘᴀʀᴀʙᴀsᴀʟɪᴅs, ᴀɴᴅ ᴅɪᴘʟᴏᴍᴏɴᴀᴅs, ʜᴀᴠᴇ ʀᴇᴅᴜᴄᴇᴅ ᴏʀ ᴛʀᴀɴsғᴏʀᴍᴇᴅ ᴛʜᴇɪʀ ᴍɪᴛᴏᴄʜᴏɴᴅʀɪᴀ ɪɴᴛᴏ ᴏᴛʜᴇʀ sᴛʀᴜᴄᴛᴜʀᴇs.

Thanks ❤️

Ashley ❤️