PREVIOUSLY ASKED IN:
WBPSC Miscellaneous Preliminary 2023
Answer
Ribosome
Explanation
Ribosomes are universally known as the 'protein factories' of the cell. Their primary function is to synthesize proteins by translating messenger RNA (mRNA) and assembling amino acids into polypeptide chains. Since proteins are the building blocks of life, ribosomes play an indispensable cellular role.
Key Points
- > Primary function: Protein synthesis (Translation).
- > Ribosomes are non-membrane-bound organelles.
- > They are found in both prokaryotic and eukaryotic cells.
- > Mitochondria are the powerhouses of the cell.
- > Lysosomes contain digestive enzymes (suicidal bags).
- > The nucleus is the control center or brain of the cell.
- > Ribosomes attached to the ER make it 'Rough Endoplasmic Reticulum'.
Additional Information
Cell Organelles & Nicknames
| Organelle | Nickname / Function |
|---|---|
| Ribosomes | Protein factory |
| Mitochondria | Powerhouse of the cell |
| Lysosomes | Suicidal bags |
| Chloroplast | Kitchen of the plant cell |
Memory Tips
- R for Ribosome, R for meat Ribs: Ribs have a lot of protein. Ribosomes make protein.