BitWithBite
Biology · Quick Reference
Lesson 2 — Animal Cell Organelles Cheat Sheet
In one line: Every organelle has one job — nucleus stores DNA, mitochondria make ATP, ribosomes make protein, Golgi packages, lysosomes digest.
Key Ideas
1Nucleus. DNA storage, controls the cell.
2Mitochondria. ATP production, own DNA (endosymbiosis).
3Ribosomes. Protein synthesis — 80S eukaryote, 70S prokaryote.
4RER/SER. RER processes protein; SER makes lipids and detoxifies.
5Golgi & lysosomes. Golgi packages/ships proteins; lysosomes digest waste.
Mnemonic
"Mighty Men Really Love Giving Loyal Service"
M
Mitochondria (energy/ATP)
R
Ribosomes (protein synthesis)
L / G
Lysosomes / Golgi (digestion/packaging)
S
SER/RER (synthesis/processing)