Ownclasses
Mitochondria and chloroplasts are semiautonomous organelles. 
Answer
Chloroplasts and mitochondria are called semiautonomous organelles due to the following reasons :

1. They have DNA, RNA, ribosomes and  other materials required to synthesize their own essential proteins.

2. They manufacture their own enzymes.

3. They can multiply and give rise to new organelles of the same kind. .