PREVIOUSLY ASKED IN:
WBPSC Miscellaneous Preliminary 2023
Answer
Mitochondria
Explanation
Mitochondria are often referred to as the 'powerhouses' of the cell. They generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy, through the process of cellular respiration. Because they are the primary energy producers, this nickname is universally used in biology.
Key Points
- > Mitochondria were first discovered by Albert von Kölliker in 1857.
- > ATP (Adenosine Triphosphate) is known as the energy currency of the cell.
- > Mitochondria possess their own independent circular DNA (mtDNA).
- > Lysosomes are known as the 'suicidal bags' of the cell.
- > Ribosomes are the 'protein factories' of the cell.
- > The Golgi apparatus is the cell's packaging center.
- > Chloroplasts (plastids) are found in plant cells, not animal cells.
Additional Information
Cell Organelles & Nicknames
| Organelle | Nickname / Function |
|---|---|
| Mitochondria | Powerhouse of the cell |
| Ribosomes | Protein factory |
| Lysosomes | Suicidal bags |
| Nucleus | Brain / Control Center |
Memory Tips
- Think of Mighty Mitochondria. 'Mighty' implies power and strength, matching its role as the powerhouse.