Organelle quick map
Mitochondria produce ATP, ribosomes synthesize proteins, the Golgi packages and ships molecules, and lysosomes handle digestion and waste.
Match each organelle to one verb: power, build, ship, clean. That mapping alone solves many one-liners.
Mitosis vs meiosis
Mitosis creates two identical diploid cells for growth and repair. Meiosis creates four genetically varied haploid gametes.
If a question mentions variation or gametes, think meiosis. If it mentions tissue repair or identical daughter cells, think mitosis.