Multiple choice

____________ are similar to mitochondrion in external structure.

  1. Vacuoles

  2. Golgi apparatus

  3. Endoplasmic reticulum

  4. Plastids

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plastids are similar to mitochondria in their external structure, as both have a double membrane and contain their own DNA and ribosomes. This similarity supports the endosymbiotic theory of organelle origin.